| Chapa | ROCKWILL |
| Namba ya Modeli | Siri ya SDF ya Kitovu cha Upinde kati Kilichoonyesha |
| volts maalum | 145kV |
| Mkato wa viwango | 4000A |
| Ukakasiriri wa sekta kwa muda mfupi | 63kA |
| Siri | SDF Series |
Maelezo
SDF disconnectors zinapatikana hadi 550 kV, 4000 A na 63 kA. Aina hii ya disconnector ina muktadha wa uwiano chache na inatoa uwiano wa mwisho chache. Zimejazwa na dead center interlocking kwa uhakika katika masharti magumu. Baadhi ya sifa muhimu nyingine za disconnectors hizi ni
Hakuna spring nje ya mikono
Muktadha bora wa mechanical interlock
Pedestals za mwito
Uwezo wa kuvunja barafu
Tumia
Horizontal center break disconnector hutumiwa katika substation kwa sababu ya upendelezi wake na uwezo wa kubadilisha muktadha.
Technology Parameters
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 |