GW4-40.5/72.5/126/145/252 Disconnector
Negotiable /Unit
Min.Order:5 Units
Disconnector GW4-40.5/72.5/126/145/252
Main feature
the silver layer of contact is thick and rigid, so it has reliable electric and mechanical performance.
the motor mechanism isCJ5B mechanism, the manual mechanism is CSA or CS17 or CS19 mechanism.
Ambient:
Ambient Air Temperature: -40~+40°C
Ice Coating thickness: 10mm
Wind-pressure: 700(34m/S) Pa
Seismic level: 8 degree
Altitude: 1000 or 2000 m
Technical parameters
Item | Unit | GW4-40.5 | GW4-72.5 | GW4-126 | GW4-145 | GW4-252 | ||
Rated Voltage | kV | 40.5 | 72.5 | 126 | 145 | 252 | ||
Rated Current | A | 3150 | 630/1250/2000/3150 | 2000 | 3150 | |||
Rated Short Time Withstand Current(3s) | kA | 40 | 25/31.5/40/50 | 40 | 50 | |||
Rated Peak Withstand Current | kA | 100 | 63/80/100/125 | 100 | 125 | |||
Rated Short Time Power Frequency Withstand Voltage | To Earth | kV | 70 | 140 | 230 | 275 | 460 | |
Across Open Contacts | 80 | 160 | 265 | 315 | 530 | |||
Rated Lightning Impulse Withstand Voltage | To Earth | kV | 170 | 325 | 550 | 650 | 1050 | |
Across Open Contacts | 195 | 375 | 630 | 750 | 1200 | |||
Creepage | mm/kV | 25 or 31 | ||||||
Isolating Distance After Main Contact Open | mm | 530 | 950 | 1250 | 1550 | >=2450
| ||
Isolation distance after earthing blade open | mm | 560 | 520 | 910 | 1180 | >=1800 | ||
Bending force of porcelain insulator | N | 4000 | 6000 | |||||
Torsion foce of porcelain insulator | N.m | 2000 |