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126kV Intelligent Combination Electrical Appliance

ZW20-12 Outdoor Post Mounted Vacuum Circuit Breaker

Overview

? The ZW20-12 outdoor column mounted vacuum circuit breaker is a three-phase AC 50Hz, 10kV outdoor high-voltage switchgear mainly used in medium voltage overhead power grids, as well as in industrial and mining enterprises, power plants, and substations. It is used for breaking and closing load currents, overload currents, and short-circuit currents. This product adopts vacuum arc extinguishing method and SF6 gas insulation. The insulation sleeve of the incoming and outgoing lines is integrally cast with epoxy resin and silicone rubber. To reduce the switch volume, corner sleeves are used for phase A and C to ensure good external insulation.

Performance Characteristics

Can be equipped with spring operating mechanism or permanent magnet operating mechanism

Meet the high reliability and maintenance free requirements of smart grid equipment

Comply with national standard GB1984 and International Electrotechnical Commission standard IEC62271-100

It can cooperate with intelligent controllers to form intelligent switches such as intelligent circuit breakers

disconnectors

reclosers

etc.

<p style="text-indent:0em"><strong style="color:#548dd4; text-indent:0em"><span style="font-size:20px">Main electrical parameters of column mounted circuit breaker</span></strong></p> <p style="text-indent:0em">&nbsp;</p> <table border="1" cellspacing="0"> <tbody> <tr class="firstRow"> <td style="vertical-align:center" width="30%"> <p style="text-align:center"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Project</span></span></span></span></span></span></p> </td> <td style="vertical-align:center" width="30%"> <p style="text-align:center"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Unit</span></span></span></span></span></span></p> </td> <td style="vertical-align:top" width="30%"> <p style="text-align:center"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Parameter</span></span></span></span></span></span></p> </td> </tr> <tr> <td style="vertical-align:center" width="238"> <p style="text-align:center"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Switch model</span></span></span></span></span></span></p> </td> <td style="vertical-align:center" width="223"> <p align="center">&nbsp;</p> </td> <td style="vertical-align:top" width="219"> <p align="center">ZW20-12</p> </td> </tr> <tr> <td style="vertical-align:center" width="238"> <p style="text-align:center"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Rated voltage</span></span></span></span></span></span></p> </td> <td style="vertical-align:center" width="223"> <p align="center">kV</p> </td> <td style="vertical-align:center" width="219"> <p align="center">12</p> </td> </tr> <tr> <td style="vertical-align:center" width="238"> <p style="text-align:center"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">1min power frequency withstand voltage</span></span></span></span></span></span></p> </td> <td style="vertical-align:center" width="223"> <p align="center">kV</p> </td> <td style="vertical-align:center" width="219"> <p style="text-align:center"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">42 (phase to phase, ground) 48 (isolation fracture)</span></span></span></span></span></span></p> </td> </tr> <tr> <td style="vertical-align:center" width="238"> <p style="text-align:center"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Lightning impulse voltage (full wave)</span></span></span></span></span></span></p> </td> <td style="vertical-align:center" width="223"> <p align="center">kV</p> </td> <td style="vertical-align:center" width="219"> <p style="text-align:center"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">75 (phase to phase, ground) 85 (isolation fracture)</span></span></span></span></span></span></p> </td> </tr> <tr> <td style="vertical-align:center" width="238"> <p style="text-align:center"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Rated current</span></span></span></span></span></span></p> </td> <td style="vertical-align:center" width="223"> <p align="center">A</p> </td> <td style="vertical-align:center" width="219"> <p align="center">630</p> </td> </tr> <tr> <td style="vertical-align:center" width="238"> <p style="text-align:center"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Short time withstand current for 4 seconds (effective value)</span></span></span></span></span></span></p> </td> <td style="vertical-align:center" width="223"> <p align="center">kA</p> </td> <td style="vertical-align:center" width="219"> <p align="center">20、25</p> </td> </tr> <tr> <td style="vertical-align:center" width="238"> <p style="text-align:center"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Rated peak withstand current</span></span></span></span></span></span></p> </td> <td style="vertical-align:center" width="223"> <p align="center">kA</p> </td> <td style="vertical-align:center" width="219"> <p align="center">50、63</p> </td> </tr> <tr> <td style="vertical-align:center" width="238"> <p style="text-align:center"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">SF6 gas leakage rate</span></span></span></span></span></span></p> </td> <td style="vertical-align:center" width="223"> <p align="center">%/year</p> </td> <td style="vertical-align:center" width="219"> <p align="center">0.1</p> </td> </tr> <tr> <td style="vertical-align:center" width="238"> <p style="text-align:center"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Institutional type</span></span></span></span></span></span></p> </td> <td style="vertical-align:center" width="223"> <p align="center">&nbsp;</p> </td> <td style="vertical-align:center" width="219"> <p><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Spring mechanism, permanent magnet mechanism</span></span></span></span></span></span></p> </td> </tr> <tr> <td style="vertical-align:center" width="238"> <p style="text-align:center"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Overall dimensions (width * height * depth)</span></span></span></span></span></span></p> </td> <td style="vertical-align:center" width="223"> <p align="center">mm</p> </td> <td style="vertical-align:center" width="219"> <p align="center">1189*775*819</p> </td> </tr> </tbody> </table>