diff --git a/notebooks/load_case9241pegase.ipynb b/notebooks/load_case9241pegase.ipynb
new file mode 100644
index 0000000..98baf95
--- /dev/null
+++ b/notebooks/load_case9241pegase.ipynb
@@ -0,0 +1,2719 @@
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "%load_ext autoreload\n",
+    "%autoreload 2"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "import numpy as np\n",
+    "from matpower import start_instance\n",
+    "\n",
+    "from matpowercaseframes import CaseFrames"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "def find_inf(df):\n",
+    "    num = df.select_dtypes(include=\"number\")\n",
+    "    mask = np.isinf(num)  # DataFrame mask (same shape as num)\n",
+    "    r, c = np.where(mask.to_numpy())\n",
+    "    hits = list(zip(num.index[r], num.columns[c], num.to_numpy()[r, c]))\n",
+    "    return hits, mask"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stderr",
+     "output_type": "stream",
+     "text": [
+      "\n",
+      "\n"
+     ]
+    }
+   ],
+   "source": [
+    "m = start_instance()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "CASE_NAME = \"case9241pegase.m\"\n",
+    "cf_case9241pegase = CaseFrames(CASE_NAME)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stderr",
+     "output_type": "stream",
+     "text": [
+      "/Users/myasirroni/Documents/Git/matpowercaseframes/env/lib/python3.12/site-packages/pandas/core/dtypes/cast.py:968: RuntimeWarning: invalid value encountered in cast\n",
+      "  elif (arr.astype(int) == arr).all():\n",
+      "/Users/myasirroni/Documents/Git/matpowercaseframes/env/lib/python3.12/site-packages/pandas/core/dtypes/cast.py:995: RuntimeWarning: invalid value encountered in cast\n",
+      "  elif (arr.astype(int) == arr).all():\n"
+     ]
+    },
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+       "      GEN_BUS      PG      QG    QMAX    QMIN        VG  MBASE  GEN_STATUS  \\\n",
+       "gen                                                                          \n",
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+       "...       ...     ...     ...     ...     ...       ...    ...         ...   \n",
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+       "1444     9238  829.80   16.82  552.08 -183.99  1.097633    100           1   \n",
+       "1445     9239  419.00  107.54  274.20  -93.22  1.017601    100           1   \n",
+       "\n",
+       "         PMAX    PMIN  ...  PC2  QC1MIN  QC1MAX  QC2MIN  QC2MAX  RAMP_AGC  \\\n",
+       "gen                    ...                                                  \n",
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+       "5      400.00    0.00  ...    0       0       0       0       0         0   \n",
+       "...       ...     ...  ...  ...     ...     ...     ...     ...       ...   \n",
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+       "1445   600.00  200.00  ...    0       0       0       0       0         0   \n",
+       "\n",
+       "      RAMP_10  RAMP_30  RAMP_Q  APF  \n",
+       "gen                                  \n",
+       "1           0        0       0    0  \n",
+       "2           0        0       0    0  \n",
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+       "\n",
+       "[1445 rows x 21 columns]"
+      ]
+     },
+     "execution_count": null,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "cf_case9241pegase.infer_numpy()  # optional, RuntimeWarning due to inf, expected\n",
+    "cf_case9241pegase.gen"
+   ]
+  },
+  {
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+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "    </tr>\n",
+       "  </thead>\n",
+       "  <tbody>\n",
+       "    <tr>\n",
+       "      <th>45</th>\n",
+       "      <td>310</td>\n",
+       "      <td>346.18</td>\n",
+       "      <td>632.57</td>\n",
+       "      <td>inf</td>\n",
+       "      <td>-inf</td>\n",
+       "      <td>1.155322</td>\n",
+       "      <td>100</td>\n",
+       "      <td>1</td>\n",
+       "      <td>700.00</td>\n",
+       "      <td>200.00</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>276</th>\n",
+       "      <td>1776</td>\n",
+       "      <td>595.00</td>\n",
+       "      <td>-773.19</td>\n",
+       "      <td>inf</td>\n",
+       "      <td>-inf</td>\n",
+       "      <td>0.967759</td>\n",
+       "      <td>100</td>\n",
+       "      <td>1</td>\n",
+       "      <td>624.75</td>\n",
+       "      <td>0.00</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>537</th>\n",
+       "      <td>3335</td>\n",
+       "      <td>-600.00</td>\n",
+       "      <td>1825.38</td>\n",
+       "      <td>inf</td>\n",
+       "      <td>-inf</td>\n",
+       "      <td>1.080640</td>\n",
+       "      <td>100</td>\n",
+       "      <td>1</td>\n",
+       "      <td>630.00</td>\n",
+       "      <td>-630.00</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>695</th>\n",
+       "      <td>4231</td>\n",
+       "      <td>2641.24</td>\n",
+       "      <td>604.18</td>\n",
+       "      <td>inf</td>\n",
+       "      <td>-inf</td>\n",
+       "      <td>1.042866</td>\n",
+       "      <td>100</td>\n",
+       "      <td>1</td>\n",
+       "      <td>4188.95</td>\n",
+       "      <td>1333.33</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>848</th>\n",
+       "      <td>5239</td>\n",
+       "      <td>-1344.40</td>\n",
+       "      <td>-125.88</td>\n",
+       "      <td>inf</td>\n",
+       "      <td>-inf</td>\n",
+       "      <td>0.990479</td>\n",
+       "      <td>100</td>\n",
+       "      <td>1</td>\n",
+       "      <td>100.00</td>\n",
+       "      <td>-1792.53</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>1274</th>\n",
+       "      <td>8109</td>\n",
+       "      <td>992.00</td>\n",
+       "      <td>834.95</td>\n",
+       "      <td>inf</td>\n",
+       "      <td>-inf</td>\n",
+       "      <td>1.059636</td>\n",
+       "      <td>100</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1041.60</td>\n",
+       "      <td>0.00</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>1334</th>\n",
+       "      <td>8532</td>\n",
+       "      <td>-697.25</td>\n",
+       "      <td>-741.74</td>\n",
+       "      <td>inf</td>\n",
+       "      <td>-inf</td>\n",
+       "      <td>1.032486</td>\n",
+       "      <td>100</td>\n",
+       "      <td>1</td>\n",
+       "      <td>100.00</td>\n",
+       "      <td>-929.67</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "    </tr>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "<p>7 rows × 21 columns</p>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "      GEN_BUS       PG       QG  QMAX  QMIN        VG  MBASE  GEN_STATUS  \\\n",
+       "gen                                                                        \n",
+       "45        310   346.18   632.57   inf  -inf  1.155322    100           1   \n",
+       "276      1776   595.00  -773.19   inf  -inf  0.967759    100           1   \n",
+       "537      3335  -600.00  1825.38   inf  -inf  1.080640    100           1   \n",
+       "695      4231  2641.24   604.18   inf  -inf  1.042866    100           1   \n",
+       "848      5239 -1344.40  -125.88   inf  -inf  0.990479    100           1   \n",
+       "1274     8109   992.00   834.95   inf  -inf  1.059636    100           1   \n",
+       "1334     8532  -697.25  -741.74   inf  -inf  1.032486    100           1   \n",
+       "\n",
+       "         PMAX     PMIN  ...  PC2  QC1MIN  QC1MAX  QC2MIN  QC2MAX  RAMP_AGC  \\\n",
+       "gen                     ...                                                  \n",
+       "45     700.00   200.00  ...    0       0       0       0       0         0   \n",
+       "276    624.75     0.00  ...    0       0       0       0       0         0   \n",
+       "537    630.00  -630.00  ...    0       0       0       0       0         0   \n",
+       "695   4188.95  1333.33  ...    0       0       0       0       0         0   \n",
+       "848    100.00 -1792.53  ...    0       0       0       0       0         0   \n",
+       "1274  1041.60     0.00  ...    0       0       0       0       0         0   \n",
+       "1334   100.00  -929.67  ...    0       0       0       0       0         0   \n",
+       "\n",
+       "      RAMP_10  RAMP_30  RAMP_Q  APF  \n",
+       "gen                                  \n",
+       "45          0        0       0    0  \n",
+       "276         0        0       0    0  \n",
+       "537         0        0       0    0  \n",
+       "695         0        0       0    0  \n",
+       "848         0        0       0    0  \n",
+       "1274        0        0       0    0  \n",
+       "1334        0        0       0    0  \n",
+       "\n",
+       "[7 rows x 21 columns]"
+      ]
+     },
+     "execution_count": null,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "hits, mask = find_inf(cf_case9241pegase.gen)\n",
+    "cf_case9241pegase.gen.loc[mask.any(axis=1)]"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "CASE_NAME = \"case9241pegase.m\"\n",
+    "cf_case9241pegase_lc = CaseFrames(CASE_NAME, load_case_engine=m)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stderr",
+     "output_type": "stream",
+     "text": [
+      "/Users/myasirroni/Documents/Git/matpowercaseframes/env/lib/python3.12/site-packages/pandas/core/dtypes/cast.py:968: RuntimeWarning: invalid value encountered in cast\n",
+      "  elif (arr.astype(int) == arr).all():\n",
+      "/Users/myasirroni/Documents/Git/matpowercaseframes/env/lib/python3.12/site-packages/pandas/core/dtypes/cast.py:995: RuntimeWarning: invalid value encountered in cast\n",
+      "  elif (arr.astype(int) == arr).all():\n"
+     ]
+    },
+    {
+     "data": {
+      "text/html": [
+       "<div>\n",
+       "<style scoped>\n",
+       "    .dataframe tbody tr th:only-of-type {\n",
+       "        vertical-align: middle;\n",
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+       "\n",
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+       "        vertical-align: top;\n",
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+       "</style>\n",
+       "<table border=\"1\" class=\"dataframe\">\n",
+       "  <thead>\n",
+       "    <tr style=\"text-align: right;\">\n",
+       "      <th></th>\n",
+       "      <th>GEN_BUS</th>\n",
+       "      <th>PG</th>\n",
+       "      <th>QG</th>\n",
+       "      <th>QMAX</th>\n",
+       "      <th>QMIN</th>\n",
+       "      <th>VG</th>\n",
+       "      <th>MBASE</th>\n",
+       "      <th>GEN_STATUS</th>\n",
+       "      <th>PMAX</th>\n",
+       "      <th>PMIN</th>\n",
+       "      <th>...</th>\n",
+       "      <th>PC2</th>\n",
+       "      <th>QC1MIN</th>\n",
+       "      <th>QC1MAX</th>\n",
+       "      <th>QC2MIN</th>\n",
+       "      <th>QC2MAX</th>\n",
+       "      <th>RAMP_AGC</th>\n",
+       "      <th>RAMP_10</th>\n",
+       "      <th>RAMP_30</th>\n",
+       "      <th>RAMP_Q</th>\n",
+       "      <th>APF</th>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>gen</th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "    </tr>\n",
+       "  </thead>\n",
+       "  <tbody>\n",
+       "    <tr>\n",
+       "      <th>1</th>\n",
+       "      <td>2</td>\n",
+       "      <td>-81.40</td>\n",
+       "      <td>6.64</td>\n",
+       "      <td>42.19</td>\n",
+       "      <td>-20.45</td>\n",
+       "      <td>1.031734</td>\n",
+       "      <td>100</td>\n",
+       "      <td>1</td>\n",
+       "      <td>100.00</td>\n",
+       "      <td>-108.53</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>2</th>\n",
+       "      <td>6</td>\n",
+       "      <td>701.00</td>\n",
+       "      <td>183.79</td>\n",
+       "      <td>524.53</td>\n",
+       "      <td>-211.57</td>\n",
+       "      <td>1.038476</td>\n",
+       "      <td>100</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1200.00</td>\n",
+       "      <td>400.00</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>3</th>\n",
+       "      <td>8</td>\n",
+       "      <td>499.70</td>\n",
+       "      <td>-0.95</td>\n",
+       "      <td>251.73</td>\n",
+       "      <td>-246.25</td>\n",
+       "      <td>1.023005</td>\n",
+       "      <td>100</td>\n",
+       "      <td>1</td>\n",
+       "      <td>524.68</td>\n",
+       "      <td>0.00</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>4</th>\n",
+       "      <td>18</td>\n",
+       "      <td>467.50</td>\n",
+       "      <td>201.91</td>\n",
+       "      <td>212.97</td>\n",
+       "      <td>-93.48</td>\n",
+       "      <td>1.026728</td>\n",
+       "      <td>100</td>\n",
+       "      <td>1</td>\n",
+       "      <td>500.00</td>\n",
+       "      <td>166.67</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>5</th>\n",
+       "      <td>25</td>\n",
+       "      <td>319.60</td>\n",
+       "      <td>164.04</td>\n",
+       "      <td>179.43</td>\n",
+       "      <td>-66.21</td>\n",
+       "      <td>1.028526</td>\n",
+       "      <td>100</td>\n",
+       "      <td>1</td>\n",
+       "      <td>400.00</td>\n",
+       "      <td>0.00</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>...</th>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>1441</th>\n",
+       "      <td>9215</td>\n",
+       "      <td>4.77</td>\n",
+       "      <td>3.71</td>\n",
+       "      <td>18.19</td>\n",
+       "      <td>-6.61</td>\n",
+       "      <td>1.008696</td>\n",
+       "      <td>100</td>\n",
+       "      <td>1</td>\n",
+       "      <td>40.00</td>\n",
+       "      <td>0.00</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>1442</th>\n",
+       "      <td>9230</td>\n",
+       "      <td>-126.70</td>\n",
+       "      <td>47.40</td>\n",
+       "      <td>127.96</td>\n",
+       "      <td>-55.88</td>\n",
+       "      <td>1.027519</td>\n",
+       "      <td>100</td>\n",
+       "      <td>1</td>\n",
+       "      <td>100.00</td>\n",
+       "      <td>-168.93</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>1443</th>\n",
+       "      <td>9235</td>\n",
+       "      <td>353.39</td>\n",
+       "      <td>124.55</td>\n",
+       "      <td>176.33</td>\n",
+       "      <td>-72.95</td>\n",
+       "      <td>1.041140</td>\n",
+       "      <td>100</td>\n",
+       "      <td>1</td>\n",
+       "      <td>400.00</td>\n",
+       "      <td>0.00</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>1444</th>\n",
+       "      <td>9238</td>\n",
+       "      <td>829.80</td>\n",
+       "      <td>16.82</td>\n",
+       "      <td>552.08</td>\n",
+       "      <td>-183.99</td>\n",
+       "      <td>1.097633</td>\n",
+       "      <td>100</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1200.00</td>\n",
+       "      <td>400.00</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>1445</th>\n",
+       "      <td>9239</td>\n",
+       "      <td>419.00</td>\n",
+       "      <td>107.54</td>\n",
+       "      <td>274.20</td>\n",
+       "      <td>-93.22</td>\n",
+       "      <td>1.017601</td>\n",
+       "      <td>100</td>\n",
+       "      <td>1</td>\n",
+       "      <td>600.00</td>\n",
+       "      <td>200.00</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "    </tr>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "<p>1445 rows × 21 columns</p>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "      GEN_BUS      PG      QG    QMAX    QMIN        VG  MBASE  GEN_STATUS  \\\n",
+       "gen                                                                          \n",
+       "1           2  -81.40    6.64   42.19  -20.45  1.031734    100           1   \n",
+       "2           6  701.00  183.79  524.53 -211.57  1.038476    100           1   \n",
+       "3           8  499.70   -0.95  251.73 -246.25  1.023005    100           1   \n",
+       "4          18  467.50  201.91  212.97  -93.48  1.026728    100           1   \n",
+       "5          25  319.60  164.04  179.43  -66.21  1.028526    100           1   \n",
+       "...       ...     ...     ...     ...     ...       ...    ...         ...   \n",
+       "1441     9215    4.77    3.71   18.19   -6.61  1.008696    100           1   \n",
+       "1442     9230 -126.70   47.40  127.96  -55.88  1.027519    100           1   \n",
+       "1443     9235  353.39  124.55  176.33  -72.95  1.041140    100           1   \n",
+       "1444     9238  829.80   16.82  552.08 -183.99  1.097633    100           1   \n",
+       "1445     9239  419.00  107.54  274.20  -93.22  1.017601    100           1   \n",
+       "\n",
+       "         PMAX    PMIN  ...  PC2  QC1MIN  QC1MAX  QC2MIN  QC2MAX  RAMP_AGC  \\\n",
+       "gen                    ...                                                  \n",
+       "1      100.00 -108.53  ...    0       0       0       0       0         0   \n",
+       "2     1200.00  400.00  ...    0       0       0       0       0         0   \n",
+       "3      524.68    0.00  ...    0       0       0       0       0         0   \n",
+       "4      500.00  166.67  ...    0       0       0       0       0         0   \n",
+       "5      400.00    0.00  ...    0       0       0       0       0         0   \n",
+       "...       ...     ...  ...  ...     ...     ...     ...     ...       ...   \n",
+       "1441    40.00    0.00  ...    0       0       0       0       0         0   \n",
+       "1442   100.00 -168.93  ...    0       0       0       0       0         0   \n",
+       "1443   400.00    0.00  ...    0       0       0       0       0         0   \n",
+       "1444  1200.00  400.00  ...    0       0       0       0       0         0   \n",
+       "1445   600.00  200.00  ...    0       0       0       0       0         0   \n",
+       "\n",
+       "      RAMP_10  RAMP_30  RAMP_Q  APF  \n",
+       "gen                                  \n",
+       "1           0        0       0    0  \n",
+       "2           0        0       0    0  \n",
+       "3           0        0       0    0  \n",
+       "4           0        0       0    0  \n",
+       "5           0        0       0    0  \n",
+       "...       ...      ...     ...  ...  \n",
+       "1441        0        0       0    0  \n",
+       "1442        0        0       0    0  \n",
+       "1443        0        0       0    0  \n",
+       "1444        0        0       0    0  \n",
+       "1445        0        0       0    0  \n",
+       "\n",
+       "[1445 rows x 21 columns]"
+      ]
+     },
+     "execution_count": null,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "cf_case9241pegase.infer_numpy()  # optional, RuntimeWarning due to inf, expected\n",
+    "cf_case9241pegase.gen"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "<div>\n",
+       "<style scoped>\n",
+       "    .dataframe tbody tr th:only-of-type {\n",
+       "        vertical-align: middle;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe tbody tr th {\n",
+       "        vertical-align: top;\n",
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+       "\n",
+       "    .dataframe thead th {\n",
+       "        text-align: right;\n",
+       "    }\n",
+       "</style>\n",
+       "<table border=\"1\" class=\"dataframe\">\n",
+       "  <thead>\n",
+       "    <tr style=\"text-align: right;\">\n",
+       "      <th></th>\n",
+       "      <th>GEN_BUS</th>\n",
+       "      <th>PG</th>\n",
+       "      <th>QG</th>\n",
+       "      <th>QMAX</th>\n",
+       "      <th>QMIN</th>\n",
+       "      <th>VG</th>\n",
+       "      <th>MBASE</th>\n",
+       "      <th>GEN_STATUS</th>\n",
+       "      <th>PMAX</th>\n",
+       "      <th>PMIN</th>\n",
+       "      <th>...</th>\n",
+       "      <th>PC2</th>\n",
+       "      <th>QC1MIN</th>\n",
+       "      <th>QC1MAX</th>\n",
+       "      <th>QC2MIN</th>\n",
+       "      <th>QC2MAX</th>\n",
+       "      <th>RAMP_AGC</th>\n",
+       "      <th>RAMP_10</th>\n",
+       "      <th>RAMP_30</th>\n",
+       "      <th>RAMP_Q</th>\n",
+       "      <th>APF</th>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>gen</th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "    </tr>\n",
+       "  </thead>\n",
+       "  <tbody>\n",
+       "    <tr>\n",
+       "      <th>45</th>\n",
+       "      <td>310</td>\n",
+       "      <td>346.18</td>\n",
+       "      <td>632.57</td>\n",
+       "      <td>inf</td>\n",
+       "      <td>-inf</td>\n",
+       "      <td>1.155322</td>\n",
+       "      <td>100</td>\n",
+       "      <td>1</td>\n",
+       "      <td>700.00</td>\n",
+       "      <td>200.00</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>276</th>\n",
+       "      <td>1776</td>\n",
+       "      <td>595.00</td>\n",
+       "      <td>-773.19</td>\n",
+       "      <td>inf</td>\n",
+       "      <td>-inf</td>\n",
+       "      <td>0.967759</td>\n",
+       "      <td>100</td>\n",
+       "      <td>1</td>\n",
+       "      <td>624.75</td>\n",
+       "      <td>0.00</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>537</th>\n",
+       "      <td>3335</td>\n",
+       "      <td>-600.00</td>\n",
+       "      <td>1825.38</td>\n",
+       "      <td>inf</td>\n",
+       "      <td>-inf</td>\n",
+       "      <td>1.080640</td>\n",
+       "      <td>100</td>\n",
+       "      <td>1</td>\n",
+       "      <td>630.00</td>\n",
+       "      <td>-630.00</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>695</th>\n",
+       "      <td>4231</td>\n",
+       "      <td>2641.24</td>\n",
+       "      <td>604.18</td>\n",
+       "      <td>inf</td>\n",
+       "      <td>-inf</td>\n",
+       "      <td>1.042866</td>\n",
+       "      <td>100</td>\n",
+       "      <td>1</td>\n",
+       "      <td>4188.95</td>\n",
+       "      <td>1333.33</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>848</th>\n",
+       "      <td>5239</td>\n",
+       "      <td>-1344.40</td>\n",
+       "      <td>-125.88</td>\n",
+       "      <td>inf</td>\n",
+       "      <td>-inf</td>\n",
+       "      <td>0.990479</td>\n",
+       "      <td>100</td>\n",
+       "      <td>1</td>\n",
+       "      <td>100.00</td>\n",
+       "      <td>-1792.53</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>1274</th>\n",
+       "      <td>8109</td>\n",
+       "      <td>992.00</td>\n",
+       "      <td>834.95</td>\n",
+       "      <td>inf</td>\n",
+       "      <td>-inf</td>\n",
+       "      <td>1.059636</td>\n",
+       "      <td>100</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1041.60</td>\n",
+       "      <td>0.00</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>1334</th>\n",
+       "      <td>8532</td>\n",
+       "      <td>-697.25</td>\n",
+       "      <td>-741.74</td>\n",
+       "      <td>inf</td>\n",
+       "      <td>-inf</td>\n",
+       "      <td>1.032486</td>\n",
+       "      <td>100</td>\n",
+       "      <td>1</td>\n",
+       "      <td>100.00</td>\n",
+       "      <td>-929.67</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "    </tr>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "<p>7 rows × 21 columns</p>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "      GEN_BUS       PG       QG  QMAX  QMIN        VG  MBASE  GEN_STATUS  \\\n",
+       "gen                                                                        \n",
+       "45        310   346.18   632.57   inf  -inf  1.155322    100           1   \n",
+       "276      1776   595.00  -773.19   inf  -inf  0.967759    100           1   \n",
+       "537      3335  -600.00  1825.38   inf  -inf  1.080640    100           1   \n",
+       "695      4231  2641.24   604.18   inf  -inf  1.042866    100           1   \n",
+       "848      5239 -1344.40  -125.88   inf  -inf  0.990479    100           1   \n",
+       "1274     8109   992.00   834.95   inf  -inf  1.059636    100           1   \n",
+       "1334     8532  -697.25  -741.74   inf  -inf  1.032486    100           1   \n",
+       "\n",
+       "         PMAX     PMIN  ...  PC2  QC1MIN  QC1MAX  QC2MIN  QC2MAX  RAMP_AGC  \\\n",
+       "gen                     ...                                                  \n",
+       "45     700.00   200.00  ...    0       0       0       0       0         0   \n",
+       "276    624.75     0.00  ...    0       0       0       0       0         0   \n",
+       "537    630.00  -630.00  ...    0       0       0       0       0         0   \n",
+       "695   4188.95  1333.33  ...    0       0       0       0       0         0   \n",
+       "848    100.00 -1792.53  ...    0       0       0       0       0         0   \n",
+       "1274  1041.60     0.00  ...    0       0       0       0       0         0   \n",
+       "1334   100.00  -929.67  ...    0       0       0       0       0         0   \n",
+       "\n",
+       "      RAMP_10  RAMP_30  RAMP_Q  APF  \n",
+       "gen                                  \n",
+       "45          0        0       0    0  \n",
+       "276         0        0       0    0  \n",
+       "537         0        0       0    0  \n",
+       "695         0        0       0    0  \n",
+       "848         0        0       0    0  \n",
+       "1274        0        0       0    0  \n",
+       "1334        0        0       0    0  \n",
+       "\n",
+       "[7 rows x 21 columns]"
+      ]
+     },
+     "execution_count": null,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "hits, mask = find_inf(cf_case9241pegase.gen)\n",
+    "cf_case9241pegase.gen.loc[mask.any(axis=1)]"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "mpc = cf_case9241pegase.to_mpc()\n",
+    "_ = m.runpf(mpc)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "mpc = cf_case9241pegase_lc.to_mpc()\n",
+    "_ = m.runpf(mpc)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "'version'"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    },
+    {
+     "data": {
+      "text/plain": [
+       "'2'"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    },
+    {
+     "data": {
+      "text/plain": [
+       "'baseMVA'"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    },
+    {
+     "data": {
+      "text/plain": [
+       "100"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    },
+    {
+     "data": {
+      "text/plain": [
+       "'bus'"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    },
+    {
+     "data": {
+      "text/html": [
+       "<div>\n",
+       "<style scoped>\n",
+       "    .dataframe tbody tr th:only-of-type {\n",
+       "        vertical-align: middle;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe tbody tr th {\n",
+       "        vertical-align: top;\n",
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+       "\n",
+       "    .dataframe thead th {\n",
+       "        text-align: right;\n",
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+       "</style>\n",
+       "<table border=\"1\" class=\"dataframe\">\n",
+       "  <thead>\n",
+       "    <tr style=\"text-align: right;\">\n",
+       "      <th></th>\n",
+       "      <th>BUS_I</th>\n",
+       "      <th>BUS_TYPE</th>\n",
+       "      <th>PD</th>\n",
+       "      <th>QD</th>\n",
+       "      <th>GS</th>\n",
+       "      <th>BS</th>\n",
+       "      <th>BUS_AREA</th>\n",
+       "      <th>VM</th>\n",
+       "      <th>VA</th>\n",
+       "      <th>BASE_KV</th>\n",
+       "      <th>ZONE</th>\n",
+       "      <th>VMAX</th>\n",
+       "      <th>VMIN</th>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>bus</th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "    </tr>\n",
+       "  </thead>\n",
+       "  <tbody>\n",
+       "    <tr>\n",
+       "      <th>1</th>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>378.40</td>\n",
+       "      <td>98.5</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>16.61</td>\n",
+       "      <td>0</td>\n",
+       "      <td>1.007206</td>\n",
+       "      <td>-36.856998</td>\n",
+       "      <td>220</td>\n",
+       "      <td>6</td>\n",
+       "      <td>1.1</td>\n",
+       "      <td>0.9</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>2</th>\n",
+       "      <td>2</td>\n",
+       "      <td>2</td>\n",
+       "      <td>0.00</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>0.00</td>\n",
+       "      <td>0</td>\n",
+       "      <td>1.031734</td>\n",
+       "      <td>-12.028001</td>\n",
+       "      <td>154</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1.1</td>\n",
+       "      <td>0.9</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>3</th>\n",
+       "      <td>3</td>\n",
+       "      <td>1</td>\n",
+       "      <td>151.00</td>\n",
+       "      <td>48.8</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>4.69</td>\n",
+       "      <td>0</td>\n",
+       "      <td>1.017843</td>\n",
+       "      <td>-21.794234</td>\n",
+       "      <td>220</td>\n",
+       "      <td>5</td>\n",
+       "      <td>1.1</td>\n",
+       "      <td>0.9</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>4</th>\n",
+       "      <td>4</td>\n",
+       "      <td>1</td>\n",
+       "      <td>171.41</td>\n",
+       "      <td>23.4</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>2.10</td>\n",
+       "      <td>0</td>\n",
+       "      <td>1.020147</td>\n",
+       "      <td>-7.224254</td>\n",
+       "      <td>220</td>\n",
+       "      <td>5</td>\n",
+       "      <td>1.1</td>\n",
+       "      <td>0.9</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>5</th>\n",
+       "      <td>5</td>\n",
+       "      <td>1</td>\n",
+       "      <td>45.95</td>\n",
+       "      <td>14.0</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>13.34</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0.989775</td>\n",
+       "      <td>-49.871783</td>\n",
+       "      <td>220</td>\n",
+       "      <td>6</td>\n",
+       "      <td>1.1</td>\n",
+       "      <td>0.9</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>...</th>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>9237</th>\n",
+       "      <td>9237</td>\n",
+       "      <td>1</td>\n",
+       "      <td>0.00</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>1.27</td>\n",
+       "      <td>0</td>\n",
+       "      <td>1.047699</td>\n",
+       "      <td>-23.228502</td>\n",
+       "      <td>110</td>\n",
+       "      <td>19</td>\n",
+       "      <td>1.1</td>\n",
+       "      <td>0.9</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>9238</th>\n",
+       "      <td>9238</td>\n",
+       "      <td>2</td>\n",
+       "      <td>0.00</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>0.00</td>\n",
+       "      <td>0</td>\n",
+       "      <td>1.097633</td>\n",
+       "      <td>15.484001</td>\n",
+       "      <td>380</td>\n",
+       "      <td>13</td>\n",
+       "      <td>1.3</td>\n",
+       "      <td>0.7</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>9239</th>\n",
+       "      <td>9239</td>\n",
+       "      <td>2</td>\n",
+       "      <td>0.00</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>0.00</td>\n",
+       "      <td>0</td>\n",
+       "      <td>1.017601</td>\n",
+       "      <td>6.125470</td>\n",
+       "      <td>380</td>\n",
+       "      <td>2</td>\n",
+       "      <td>1.1</td>\n",
+       "      <td>0.9</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>9240</th>\n",
+       "      <td>9240</td>\n",
+       "      <td>1</td>\n",
+       "      <td>0.00</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>3.66</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0.960374</td>\n",
+       "      <td>-31.768249</td>\n",
+       "      <td>150</td>\n",
+       "      <td>9</td>\n",
+       "      <td>1.1</td>\n",
+       "      <td>0.9</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>9241</th>\n",
+       "      <td>9241</td>\n",
+       "      <td>1</td>\n",
+       "      <td>0.00</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>0.36</td>\n",
+       "      <td>0</td>\n",
+       "      <td>1.044245</td>\n",
+       "      <td>-9.735227</td>\n",
+       "      <td>220</td>\n",
+       "      <td>5</td>\n",
+       "      <td>1.1</td>\n",
+       "      <td>0.9</td>\n",
+       "    </tr>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "<p>9241 rows × 13 columns</p>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "      BUS_I  BUS_TYPE      PD    QD   GS     BS  BUS_AREA        VM  \\\n",
+       "bus                                                                   \n",
+       "1         1         1  378.40  98.5  0.0  16.61         0  1.007206   \n",
+       "2         2         2    0.00   0.0  0.0   0.00         0  1.031734   \n",
+       "3         3         1  151.00  48.8  0.0   4.69         0  1.017843   \n",
+       "4         4         1  171.41  23.4  0.0   2.10         0  1.020147   \n",
+       "5         5         1   45.95  14.0  0.0  13.34         0  0.989775   \n",
+       "...     ...       ...     ...   ...  ...    ...       ...       ...   \n",
+       "9237   9237         1    0.00   0.0  0.0   1.27         0  1.047699   \n",
+       "9238   9238         2    0.00   0.0  0.0   0.00         0  1.097633   \n",
+       "9239   9239         2    0.00   0.0  0.0   0.00         0  1.017601   \n",
+       "9240   9240         1    0.00   0.0  0.0   3.66         0  0.960374   \n",
+       "9241   9241         1    0.00   0.0  0.0   0.36         0  1.044245   \n",
+       "\n",
+       "             VA  BASE_KV  ZONE  VMAX  VMIN  \n",
+       "bus                                         \n",
+       "1    -36.856998      220     6   1.1   0.9  \n",
+       "2    -12.028001      154     1   1.1   0.9  \n",
+       "3    -21.794234      220     5   1.1   0.9  \n",
+       "4     -7.224254      220     5   1.1   0.9  \n",
+       "5    -49.871783      220     6   1.1   0.9  \n",
+       "...         ...      ...   ...   ...   ...  \n",
+       "9237 -23.228502      110    19   1.1   0.9  \n",
+       "9238  15.484001      380    13   1.3   0.7  \n",
+       "9239   6.125470      380     2   1.1   0.9  \n",
+       "9240 -31.768249      150     9   1.1   0.9  \n",
+       "9241  -9.735227      220     5   1.1   0.9  \n",
+       "\n",
+       "[9241 rows x 13 columns]"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    },
+    {
+     "data": {
+      "text/plain": [
+       "'gen'"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    },
+    {
+     "data": {
+      "text/html": [
+       "<div>\n",
+       "<style scoped>\n",
+       "    .dataframe tbody tr th:only-of-type {\n",
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+       "<table border=\"1\" class=\"dataframe\">\n",
+       "  <thead>\n",
+       "    <tr style=\"text-align: right;\">\n",
+       "      <th></th>\n",
+       "      <th>GEN_BUS</th>\n",
+       "      <th>PG</th>\n",
+       "      <th>QG</th>\n",
+       "      <th>QMAX</th>\n",
+       "      <th>QMIN</th>\n",
+       "      <th>VG</th>\n",
+       "      <th>MBASE</th>\n",
+       "      <th>GEN_STATUS</th>\n",
+       "      <th>PMAX</th>\n",
+       "      <th>PMIN</th>\n",
+       "      <th>...</th>\n",
+       "      <th>PC2</th>\n",
+       "      <th>QC1MIN</th>\n",
+       "      <th>QC1MAX</th>\n",
+       "      <th>QC2MIN</th>\n",
+       "      <th>QC2MAX</th>\n",
+       "      <th>RAMP_AGC</th>\n",
+       "      <th>RAMP_10</th>\n",
+       "      <th>RAMP_30</th>\n",
+       "      <th>RAMP_Q</th>\n",
+       "      <th>APF</th>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>gen</th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
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+       "      <th></th>\n",
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+       "      <th></th>\n",
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+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "    </tr>\n",
+       "  </thead>\n",
+       "  <tbody>\n",
+       "    <tr>\n",
+       "      <th>1</th>\n",
+       "      <td>2</td>\n",
+       "      <td>-81.40</td>\n",
+       "      <td>6.64</td>\n",
+       "      <td>42.19</td>\n",
+       "      <td>-20.45</td>\n",
+       "      <td>1.031734</td>\n",
+       "      <td>100</td>\n",
+       "      <td>1</td>\n",
+       "      <td>100.00</td>\n",
+       "      <td>-108.53</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>2</th>\n",
+       "      <td>6</td>\n",
+       "      <td>701.00</td>\n",
+       "      <td>183.79</td>\n",
+       "      <td>524.53</td>\n",
+       "      <td>-211.57</td>\n",
+       "      <td>1.038476</td>\n",
+       "      <td>100</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1200.00</td>\n",
+       "      <td>400.00</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>3</th>\n",
+       "      <td>8</td>\n",
+       "      <td>499.70</td>\n",
+       "      <td>-0.95</td>\n",
+       "      <td>251.73</td>\n",
+       "      <td>-246.25</td>\n",
+       "      <td>1.023005</td>\n",
+       "      <td>100</td>\n",
+       "      <td>1</td>\n",
+       "      <td>524.68</td>\n",
+       "      <td>0.00</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>4</th>\n",
+       "      <td>18</td>\n",
+       "      <td>467.50</td>\n",
+       "      <td>201.91</td>\n",
+       "      <td>212.97</td>\n",
+       "      <td>-93.48</td>\n",
+       "      <td>1.026728</td>\n",
+       "      <td>100</td>\n",
+       "      <td>1</td>\n",
+       "      <td>500.00</td>\n",
+       "      <td>166.67</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>5</th>\n",
+       "      <td>25</td>\n",
+       "      <td>319.60</td>\n",
+       "      <td>164.04</td>\n",
+       "      <td>179.43</td>\n",
+       "      <td>-66.21</td>\n",
+       "      <td>1.028526</td>\n",
+       "      <td>100</td>\n",
+       "      <td>1</td>\n",
+       "      <td>400.00</td>\n",
+       "      <td>0.00</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>...</th>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>1441</th>\n",
+       "      <td>9215</td>\n",
+       "      <td>4.77</td>\n",
+       "      <td>3.71</td>\n",
+       "      <td>18.19</td>\n",
+       "      <td>-6.61</td>\n",
+       "      <td>1.008696</td>\n",
+       "      <td>100</td>\n",
+       "      <td>1</td>\n",
+       "      <td>40.00</td>\n",
+       "      <td>0.00</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>1442</th>\n",
+       "      <td>9230</td>\n",
+       "      <td>-126.70</td>\n",
+       "      <td>47.40</td>\n",
+       "      <td>127.96</td>\n",
+       "      <td>-55.88</td>\n",
+       "      <td>1.027519</td>\n",
+       "      <td>100</td>\n",
+       "      <td>1</td>\n",
+       "      <td>100.00</td>\n",
+       "      <td>-168.93</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>1443</th>\n",
+       "      <td>9235</td>\n",
+       "      <td>353.39</td>\n",
+       "      <td>124.55</td>\n",
+       "      <td>176.33</td>\n",
+       "      <td>-72.95</td>\n",
+       "      <td>1.041140</td>\n",
+       "      <td>100</td>\n",
+       "      <td>1</td>\n",
+       "      <td>400.00</td>\n",
+       "      <td>0.00</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>1444</th>\n",
+       "      <td>9238</td>\n",
+       "      <td>829.80</td>\n",
+       "      <td>16.82</td>\n",
+       "      <td>552.08</td>\n",
+       "      <td>-183.99</td>\n",
+       "      <td>1.097633</td>\n",
+       "      <td>100</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1200.00</td>\n",
+       "      <td>400.00</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>1445</th>\n",
+       "      <td>9239</td>\n",
+       "      <td>419.00</td>\n",
+       "      <td>107.54</td>\n",
+       "      <td>274.20</td>\n",
+       "      <td>-93.22</td>\n",
+       "      <td>1.017601</td>\n",
+       "      <td>100</td>\n",
+       "      <td>1</td>\n",
+       "      <td>600.00</td>\n",
+       "      <td>200.00</td>\n",
+       "      <td>...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "    </tr>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "<p>1445 rows × 21 columns</p>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "      GEN_BUS      PG      QG    QMAX    QMIN        VG  MBASE  GEN_STATUS  \\\n",
+       "gen                                                                          \n",
+       "1           2  -81.40    6.64   42.19  -20.45  1.031734    100           1   \n",
+       "2           6  701.00  183.79  524.53 -211.57  1.038476    100           1   \n",
+       "3           8  499.70   -0.95  251.73 -246.25  1.023005    100           1   \n",
+       "4          18  467.50  201.91  212.97  -93.48  1.026728    100           1   \n",
+       "5          25  319.60  164.04  179.43  -66.21  1.028526    100           1   \n",
+       "...       ...     ...     ...     ...     ...       ...    ...         ...   \n",
+       "1441     9215    4.77    3.71   18.19   -6.61  1.008696    100           1   \n",
+       "1442     9230 -126.70   47.40  127.96  -55.88  1.027519    100           1   \n",
+       "1443     9235  353.39  124.55  176.33  -72.95  1.041140    100           1   \n",
+       "1444     9238  829.80   16.82  552.08 -183.99  1.097633    100           1   \n",
+       "1445     9239  419.00  107.54  274.20  -93.22  1.017601    100           1   \n",
+       "\n",
+       "         PMAX    PMIN  ...  PC2  QC1MIN  QC1MAX  QC2MIN  QC2MAX  RAMP_AGC  \\\n",
+       "gen                    ...                                                  \n",
+       "1      100.00 -108.53  ...    0       0       0       0       0         0   \n",
+       "2     1200.00  400.00  ...    0       0       0       0       0         0   \n",
+       "3      524.68    0.00  ...    0       0       0       0       0         0   \n",
+       "4      500.00  166.67  ...    0       0       0       0       0         0   \n",
+       "5      400.00    0.00  ...    0       0       0       0       0         0   \n",
+       "...       ...     ...  ...  ...     ...     ...     ...     ...       ...   \n",
+       "1441    40.00    0.00  ...    0       0       0       0       0         0   \n",
+       "1442   100.00 -168.93  ...    0       0       0       0       0         0   \n",
+       "1443   400.00    0.00  ...    0       0       0       0       0         0   \n",
+       "1444  1200.00  400.00  ...    0       0       0       0       0         0   \n",
+       "1445   600.00  200.00  ...    0       0       0       0       0         0   \n",
+       "\n",
+       "      RAMP_10  RAMP_30  RAMP_Q  APF  \n",
+       "gen                                  \n",
+       "1           0        0       0    0  \n",
+       "2           0        0       0    0  \n",
+       "3           0        0       0    0  \n",
+       "4           0        0       0    0  \n",
+       "5           0        0       0    0  \n",
+       "...       ...      ...     ...  ...  \n",
+       "1441        0        0       0    0  \n",
+       "1442        0        0       0    0  \n",
+       "1443        0        0       0    0  \n",
+       "1444        0        0       0    0  \n",
+       "1445        0        0       0    0  \n",
+       "\n",
+       "[1445 rows x 21 columns]"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    },
+    {
+     "data": {
+      "text/plain": [
+       "'branch'"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    },
+    {
+     "data": {
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+       "<div>\n",
+       "<style scoped>\n",
+       "    .dataframe tbody tr th:only-of-type {\n",
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+       "    }\n",
+       "\n",
+       "    .dataframe tbody tr th {\n",
+       "        vertical-align: top;\n",
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+       "\n",
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+       "</style>\n",
+       "<table border=\"1\" class=\"dataframe\">\n",
+       "  <thead>\n",
+       "    <tr style=\"text-align: right;\">\n",
+       "      <th></th>\n",
+       "      <th>F_BUS</th>\n",
+       "      <th>T_BUS</th>\n",
+       "      <th>BR_R</th>\n",
+       "      <th>BR_X</th>\n",
+       "      <th>BR_B</th>\n",
+       "      <th>RATE_A</th>\n",
+       "      <th>RATE_B</th>\n",
+       "      <th>RATE_C</th>\n",
+       "      <th>TAP</th>\n",
+       "      <th>SHIFT</th>\n",
+       "      <th>BR_STATUS</th>\n",
+       "      <th>ANGMIN</th>\n",
+       "      <th>ANGMAX</th>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>branch</th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
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+       "  <tbody>\n",
+       "    <tr>\n",
+       "      <th>1</th>\n",
+       "      <td>5147</td>\n",
+       "      <td>3097</td>\n",
+       "      <td>0.000600</td>\n",
+       "      <td>0.006160</td>\n",
+       "      <td>0</td>\n",
+       "      <td>823</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0.000000</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>1</td>\n",
+       "      <td>-360</td>\n",
+       "      <td>360</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>2</th>\n",
+       "      <td>5147</td>\n",
+       "      <td>8763</td>\n",
+       "      <td>0.000500</td>\n",
+       "      <td>0.007400</td>\n",
+       "      <td>0</td>\n",
+       "      <td>921</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0.000000</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>1</td>\n",
+       "      <td>-360</td>\n",
+       "      <td>360</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>3</th>\n",
+       "      <td>2169</td>\n",
+       "      <td>3124</td>\n",
+       "      <td>0.001070</td>\n",
+       "      <td>0.006260</td>\n",
+       "      <td>0</td>\n",
+       "      <td>476</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0.000000</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>1</td>\n",
+       "      <td>-360</td>\n",
+       "      <td>360</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>4</th>\n",
+       "      <td>2169</td>\n",
+       "      <td>3234</td>\n",
+       "      <td>0.000841</td>\n",
+       "      <td>0.005500</td>\n",
+       "      <td>0</td>\n",
+       "      <td>476</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0.000000</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>1</td>\n",
+       "      <td>-360</td>\n",
+       "      <td>360</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>5</th>\n",
+       "      <td>3517</td>\n",
+       "      <td>711</td>\n",
+       "      <td>0.001430</td>\n",
+       "      <td>0.015630</td>\n",
+       "      <td>0</td>\n",
+       "      <td>1645</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0.000000</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>1</td>\n",
+       "      <td>-360</td>\n",
+       "      <td>360</td>\n",
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+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
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+       "    <tr>\n",
+       "      <th>16045</th>\n",
+       "      <td>3292</td>\n",
+       "      <td>3612</td>\n",
+       "      <td>0.000000</td>\n",
+       "      <td>0.047975</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0.962181</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>1</td>\n",
+       "      <td>-360</td>\n",
+       "      <td>360</td>\n",
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+       "    <tr>\n",
+       "      <th>16046</th>\n",
+       "      <td>1929</td>\n",
+       "      <td>5090</td>\n",
+       "      <td>0.000000</td>\n",
+       "      <td>0.050500</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0.950000</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>1</td>\n",
+       "      <td>-360</td>\n",
+       "      <td>360</td>\n",
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+       "    <tr>\n",
+       "      <th>16047</th>\n",
+       "      <td>1929</td>\n",
+       "      <td>5090</td>\n",
+       "      <td>0.000000</td>\n",
+       "      <td>0.050500</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0.950000</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>1</td>\n",
+       "      <td>-360</td>\n",
+       "      <td>360</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>16048</th>\n",
+       "      <td>1929</td>\n",
+       "      <td>5090</td>\n",
+       "      <td>0.000000</td>\n",
+       "      <td>0.050500</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
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+       "      <td>0.950000</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>1</td>\n",
+       "      <td>-360</td>\n",
+       "      <td>360</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>16049</th>\n",
+       "      <td>8110</td>\n",
+       "      <td>8441</td>\n",
+       "      <td>0.000000</td>\n",
+       "      <td>0.070313</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
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+       "      <td>0</td>\n",
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+       "      <td>0.0</td>\n",
+       "      <td>1</td>\n",
+       "      <td>-360</td>\n",
+       "      <td>360</td>\n",
+       "    </tr>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "<p>16049 rows × 13 columns</p>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "        F_BUS  T_BUS      BR_R      BR_X  BR_B  RATE_A  RATE_B  RATE_C  \\\n",
+       "branch                                                                   \n",
+       "1        5147   3097  0.000600  0.006160     0     823       0       0   \n",
+       "2        5147   8763  0.000500  0.007400     0     921       0       0   \n",
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+       "5        3517    711  0.001430  0.015630     0    1645       0       0   \n",
+       "...       ...    ...       ...       ...   ...     ...     ...     ...   \n",
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+       "16049    8110   8441  0.000000  0.070313     0       0       0       0   \n",
+       "\n",
+       "             TAP  SHIFT  BR_STATUS  ANGMIN  ANGMAX  \n",
+       "branch                                              \n",
+       "1       0.000000    0.0          1    -360     360  \n",
+       "2       0.000000    0.0          1    -360     360  \n",
+       "3       0.000000    0.0          1    -360     360  \n",
+       "4       0.000000    0.0          1    -360     360  \n",
+       "5       0.000000    0.0          1    -360     360  \n",
+       "...          ...    ...        ...     ...     ...  \n",
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+       "16048   0.950000    0.0          1    -360     360  \n",
+       "16049   0.950000    0.0          1    -360     360  \n",
+       "\n",
+       "[16049 rows x 13 columns]"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    },
+    {
+     "data": {
+      "text/plain": [
+       "'gencost'"
+      ]
+     },
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+    {
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+       "  <thead>\n",
+       "    <tr style=\"text-align: right;\">\n",
+       "      <th></th>\n",
+       "      <th>MODEL</th>\n",
+       "      <th>STARTUP</th>\n",
+       "      <th>SHUTDOWN</th>\n",
+       "      <th>NCOST</th>\n",
+       "      <th>C2</th>\n",
+       "      <th>C1</th>\n",
+       "      <th>C0</th>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>gen</th>\n",
+       "      <th></th>\n",
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+       "    </tr>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "<p>1445 rows × 7 columns</p>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "      MODEL  STARTUP  SHUTDOWN  NCOST  C2  C1  C0\n",
+       "gen                                              \n",
+       "1         2        0         0      3   0   1   0\n",
+       "2         2        0         0      3   0   1   0\n",
+       "3         2        0         0      3   0   1   0\n",
+       "4         2        0         0      3   0   1   0\n",
+       "5         2        0         0      3   0   1   0\n",
+       "...     ...      ...       ...    ...  ..  ..  ..\n",
+       "1441      2        0         0      3   0   1   0\n",
+       "1442      2        0         0      3   0   1   0\n",
+       "1443      2        0         0      3   0   1   0\n",
+       "1444      2        0         0      3   0   1   0\n",
+       "1445      2        0         0      3   0   1   0\n",
+       "\n",
+       "[1445 rows x 7 columns]"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    }
+   ],
+   "source": [
+    "for attr in cf_case9241pegase.attributes:\n",
+    "    display(attr, getattr(cf_case9241pegase, attr))"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "m.exit()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "env",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 2
+}
diff --git a/requirements-all.txt b/requirements-all.txt
index 55a13e1..9d9cee8 100644
--- a/requirements-all.txt
+++ b/requirements-all.txt
@@ -1,17 +1,17 @@
-pandas==3.0.1
-numpy==2.4.2
+pandas==3.0.3
+numpy==2.4.6
 
 openpyxl==3.1.5
 
-oct2py==5.8.0
+oct2py==6.0.3
 matpower==8.1.0.2.3.0
 
-itables==2.7.1
+itables==2.8.0
 
-pre-commit==4.5.1
-ruff==0.15.5
-setuptools==82.0.0
+pre-commit==4.6.0
+ruff==0.15.15
+setuptools==82.0.1
 
-pytest==9.0.2
-pytest-cov==7.0.0
+pytest==9.0.3
+pytest-cov==7.1.0
 pytest-xdist==3.8.0