| Brand | ROCKWILL |
| Model NO. | Motor Operation Outdoor HV Disconnector-72.5kV to 245kV |
| Rated voltage | 145kV |
| Rated normal current | 3150A |
| Rated short-time withstand current | 50kA |
| Series | RDS |
RDS series horizontal center break disconnector is designed for high-voltage substation isolation up to 245 kV. Center-break rotating contact design with self-cleansing silver-plated contact plates and stainless steel springs maintains consistent contact pressure. Low-friction mechanism with mechanical interlock ensures reliable operation under extreme conditions including ice loading. Suitable for indoor and outdoor installation with motor or manual operating mechanisms. Available in 72.5 kV, 145 kV, and 245 kV voltage classes.
|
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 |
| Condition | Value |
|---|---|
| Ambient temperature (max.) | +40°C |
| Ambient temperature (24h avg.) | ≤35°C |
| Ambient temperature (min.) | -25°C (outdoor) |
| Altitude | ≤1000 m |
| Relative humidity (daily avg.) | ≤95% |
| Relative humidity (monthly avg.) | ≤90% |
It utilizes self-cleansing silver-plated contact plates and stainless steel springs to guarantee constant contact pressure and low resistance, minimizing wear.
Yes, its specific mechanical interlock and ice-breaking capability ensure reliable opening and closing operations even under heavy ice loading.
No, the design offers a simple arrangement that makes erection and alignment very easy, allowing for highly flexible substation layouts.
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