<p><strong style="color:#548dd4"><span style="font-size:20px">252kV组合电器（GIS）主要电气参数：</span></strong></p> <p>&nbsp;</p> <table> <tbody> <tr class="firstRow"> <td colspan="2" style="vertical-align:center" width="60%"> <p align="center">项目</p> </td> <td style="vertical-align:center" width="30%"> <p align="center">参数</p> </td> </tr> <tr> <td colspan="2" style="vertical-align:center" width="421"> <p>额定电压</p> </td> <td style="vertical-align:center" width="251"> <p align="center">252 kV</p> </td> </tr> <tr> <td rowspan="2" style="vertical-align:center" width="179"> <p>额定绝缘水平</p> </td> <td style="vertical-align:center" width="242"> <p>1min 工频耐受电压（断口/对地）</p> </td> <td style="vertical-align:center" width="251"> <p align="center">（460+145）kV/460kV</p> </td> </tr> <tr> <td style="vertical-align:center" width="242"> <p>雷电冲击耐受电压（断口/对地）</p> </td> <td style="vertical-align:center" width="251"> <p align="center">（1050+200）kV/1050 kV</p> </td> </tr> <tr> <td colspan="2" style="vertical-align:center" width="421"> <p>额定频率</p> </td> <td style="vertical-align:center" width="251"> <p align="center">50 Hz</p> </td> </tr> <tr> <td colspan="2" style="vertical-align:center" width="421"> <p>额定电流</p> </td> <td style="vertical-align:center" width="251"> <p align="center">3150、4000 A</p> </td> </tr> <tr> <td colspan="2" style="vertical-align:center" width="421"> <p>额定短路开断电流</p> </td> <td style="vertical-align:center" width="251"> <p align="center">50 kA</p> </td> </tr> <tr> <td colspan="2" style="vertical-align:center" width="421"> <p>额定峰值耐受电流</p> </td> <td style="vertical-align:center" width="251"> <p align="center">125 kA</p> </td> </tr> <tr> <td colspan="2" style="vertical-align:center" width="421"> <p>短时耐受电流（有效值）</p> </td> <td style="vertical-align:center" width="251"> <p align="center">50 kA/3s</p> </td> </tr> <tr> <td colspan="2" style="vertical-align:center; word-break:break-all" width="421"> <p><span style="font-family:arial,helvetica,sans-serif; white-space:normal">SF</span><span style="font-family:arial,helvetica,sans-serif; vertical-align:sub; white-space:normal">6</span>气体漏气率</p> </td> <td style="vertical-align:center; word-break:break-all" width="251"> <p align="center">&lt;0.3%/年</p> </td> </tr> <tr> <td rowspan="2" style="vertical-align:center; word-break:break-all" width="179"> <p><span style="font-family:arial,helvetica,sans-serif; white-space:normal">SF</span><span style="font-family:arial,helvetica,sans-serif; vertical-align:sub; white-space:normal">6</span>气体湿度</p> </td> <td style="vertical-align:center" width="242"> <p>有电解分解物（交接验收值/长期运行允许值）</p> </td> <td style="vertical-align:center" width="251"> <p align="center">&le;150/300uL/L</p> </td> </tr> <tr> <td style="vertical-align:center" width="242"> <p>无电解分解物（交接验收值/长期运行允许值）</p> </td> <td style="vertical-align:center" width="251"> <p align="center">&le;250/500uL/L</p> </td> </tr> <tr> <td style="vertical-align:center" width="179"> <p>局部放电</p> </td> <td style="vertical-align:center" width="242"> <p>每个间隔/每单个绝缘件</p> </td> <td style="vertical-align:center" width="251"> <p align="center">&le;5/3Pc</p> </td> </tr> <tr> <td rowspan="2" style="vertical-align:center" width="179"> <p>结构布置</p> </td> <td style="vertical-align:center" width="242"> <p>断路器</p> </td> <td style="vertical-align:center" width="251"> <p align="center">三相分箱</p> </td> </tr> <tr> <td style="vertical-align:center" width="242"> <p>主母线</p> </td> <td style="vertical-align:center" width="251"> <p align="center">三相共箱</p> </td> </tr> <tr> <td colspan="2" style="vertical-align:center" width="421"> <p>断路器操作机构</p> </td> <td style="vertical-align:center" width="251"> <p align="center">液压、弹簧机构</p> </td> </tr> <tr> <td colspan="2" style="vertical-align:center" width="421"> <p>断路器操作方式</p> </td> <td style="vertical-align:center" width="251"> <p align="center">分相操作、三相机械联动</p> </td> </tr> <tr> <td colspan="2" style="vertical-align:center" width="421"> <p>间隔尺寸</p> </td> <td style="vertical-align:center; word-break:break-all" width="251"> <p align="center">1.8-2.2m</p> </td> </tr> </tbody> </table>