Complaint
| No. | Item | Unit | Parameters | |||
| 1 | Rated Voltage | KV | 12 | |||
| 2 | Rated Frequency | Hz | 50/60 | |||
| 3 | Rated Current | A | 630 1250 1600 2000 2500 3150 | |||
| 4 | Branch busbar rated current | A | 630 1250 1600 2000 2500 3150 | |||
| 5 | Main busbar rated current | A | 630 1250 1600 2000 2500 3150 | |||
| 6 | 1min power frequency withstand voltage | Dry | KV | 38 | 50/60 | |
| 48 | 60/65 | |||||
| Wet | ||||||
| 7 | Lightening impulse withstand voltage | KV | 75 | 95/125 | ||
| 8 | Rated Short-time Withstand Current (4s) | KA | 20/25/31.5/40 | |||
| 9 | Rated Short Circuit Breaking Current(Peak) | KA | 40/50/63/80/100 | |||
| 10 | Protection type | IP4X for housing | ||||
1) compartment busbar compartment; circuit breaker compartment; cable compartment; low-voltage compartment.
1 - main device: circuit breaker, contactor,
2 - current transformers,
3 - earthing switch,
4 - voltage transformers,
5 - support-bushing insulators,
6 - bushing insulators
7 - surge arresters,
8 - support insulators (reactance),
9 - main busbars.
10 - connecting (distribution) busbars,
11 - earth-fault current transformer,
12 - earthing conductor,
13 - metal movable particions,
14 - cable ducts (optionally),
15 - vent flaps.
