Customization: | Available |
---|---|
Type: | Power |
Structure: | Protection |
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Intorduction:
VBR (VS1)- 12 side-mounted vacuum circuit breaker is an indoor high-voltage switchgear for three-phase power system with rated voltage of 12 kV and frequency of 50 Hz. It is used as protection and control electric appliance due to special vacuum circuit breaker. Superiority, especially suitable for frequent operations requiring rated current or multiple short-circuit currents.
The VBR (VS1)-12 type side-mounted vacuum circuit breaker is fixedly mounted and is mainly used for fixed switchgear. The circuit breaker can be used alone or in ring power supply, box type or various non-standard power supply. system.
The main technical parameters:
Sr. |
Name |
Unit |
Value |
1 |
Rated voltage |
KV |
12 |
2 |
Rated frequency |
Hz |
50 |
3 |
Rated current |
A |
630 |
4 |
Rated short-circuit breaking current |
KA |
20 |
5 |
Rated peak withstand current (peak) |
KA |
50 |
6 |
Rated short-time withstand current |
KA |
20 |
7 |
Rated short circuit closing current (peak) |
KA |
50 |
8 |
Mechanical life |
Time |
10000 |
9 |
Rated short circuit current breaking times |
Time |
30 |
10 |
Power frequency withstand voltage (1min): (wet) (dry) phase, ground, fracture |
KV |
42/48 |
11 |
Lightning impulse withstand voltage (peak), phase to ground, fracture |
KV |
75/85 |
12 |
Secondary circuit 1min power frequency withstand voltage |
KV |
2 |