Brand | ROCKWILL |
Model NO. | GW55 Series Horizontal center break disconnector |
Rated voltage | 145kV |
Rated normal current | 3150A |
Rated short-time withstand current | 50kA |
Series | GW55 Series |
Overview
The GW55 disconnectors are available up to 245 kV, 3150 A and 50 kA. These disconnectors have a low friction design and offer minimized contact resistance. They are equipped with interlocking for reliability in extreme conditions. Some other important features of these disconnectors are:
Contact plates with self-cleansing capability
Contact pressure kept unchanged by stainless springs
Superior design of mechanical interlock
Ice breaking capacity
Applications
The horizontal center break disconnector is used at substations due to its simplicity and flexibility in arrangement.
Parameters
Rated voltage (kV) |
72.5 |
123 |
145 |
245 |
Rated current (A) |
3150 |
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Short time withstand current (kA) |
50 |
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Power frequency withstand voltage (kV) |
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against earth |
140 |
230 |
275 |
460 |
across isolating distance |
160 |
265 |
315 |
530 |
Lightning impulse withstand voltage (kV) |
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against earth |
325 |
550 |
650 |
1050 |
across isolating distance |
375 |
630 |
750 |
1200 |