a. The isolating switch adopts the three-position design, which theoretically completely avoids the occurrence of misoperation.
b. Adopt contact design conducive to grounding closure.
c. high performance German Mubel disc spring, to ensure the stability of contact pressure.
d. The rotation isolation of the spindle drive has a small transmission gap to ensure reliable grounding and isolation break distance.
0577-62686971
Model composition
HWHB(C)-12/T630
Operating conditions
installation site | In the box |
ambient temperature （℃） | -45~+140 |
height （m） | ≤2000 |
air humidity （%） | The daily average is not greater than 95% and the monthly average is not greater than 90% |
seismic intensity | No more than 8 degrees |
Technical parameters of environmental protection isolating switch
order number | project | unit | numeric value |
1 | rated voltage | kV | 12 |
2 | rated frequency | Hz | 50 |
3 | rated current | A | 630 |
4 | Rated peak withstand current | kA | 50；63 |
5 | Rated short-term withstand current/time | kA/s | 20/4；25/4 |
6 | Rated short-circuit closing current (peak) | kA | 50/63 |
7 | mechanical life | Next | ≥5000 |
8 | 1min power frequency voltage: phase to ground/disconnected (air) | kV | 42/48 |
9 | Lightning impulse withstand voltage (peak) between phases, to ground/disconnected (air) | kV | 75/85 |
Mechanical characteristics of environmental protection isolating switch
order number | project | unit | numeric value |
1 | Touch pressure | N | 220±10 |
2 | Center-to-center distance | mm | 150 |
3 | Three-phase opening and closing at different periods | ms | ≤2 |
4 | Main circuit resistance | μΩ | ≤35 |
Service Hotline
No. 333, Weishiqi Road, Yueqing Economic Development Zone, Zhejiang Province
Samples
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