| Brand | ROCKWILL |
| Model NO. | Horizontal center break disconnector for substations-72.5kV to 550kV |
| Rated voltage | 550kV |
| Rated normal current | 4000A |
| Rated short-time withstand current | 63kA |
| Series | RDS |
The RDS disconnectors are available for up to 550 kV, 4000 A and 63 kA. These type of disconnector have a low friction design and offer minimized contact resistance. They are equipped with dead center interlocking for reliability in extreme conditions. Some other important features of these disconnectors are:
No external spring in contact fingers
Superior design of mechanical interlock
Strong rotary pedestals
Ice breaking capacity
|
Rated voltage (kV) |
72.5 |
123 |
145 |
245 |
300 |
362 |
420 |
550 |
|
Rated current (A) |
4000 |
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|
Short time withstand current (kA) |
63 |
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|
Power frequency withstand voltage (kV) |
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|
against earth |
140 |
230 |
275 |
460 |
395 |
450 |
520 |
620 |
|
across isolating distance |
160 |
265 |
315 |
530 |
435 |
520 |
610 |
800 |
|
Lightning impulse withstand voltage (kV) |
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|
against earth |
325 |
550 |
650 |
1050 |
1050 |
1175 |
1425 |
1550 |
|
across isolating distance |
375 |
630 |
750 |
1200 |
1050 |
1175 |
1425 |
1550 |
|
Switching impulse withstand voltage (kV) |
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|
against earth |
|
|
|
|
850 |
950 |
1050 |
1175 |
|
across isolating distance |
|
|
|
|
700 |
800 |
900 |
900 |
It features a low friction design and uses no external springs in the contact fingers, which effectively minimizes contact resistance and component degradation.
It utilizes strong rotary pedestals and a superior mechanical interlock design to maintain structural integrity and prevent operational errors.
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