Description
ZW37Z-40.5 series of outdoor high voltage vacuum circuit breaker (hereinafter referred to as circuit breaker). is the company according to the requirements of the development of China's power grid, the introduction of domestic and foreign advanced technology and developed a new type of outdoor high voltage equipment, applicable to three-phase ac 50 Hz, rated voltage 35 kV power system, as a share the load current, overload current and short circuit current. The product has the characteristics of novel appearance, reasonable design, strong complete set, safe and reliable, simple maintenance, long electrical life and so on. It is an ideal equipment for upgrading 40.5kV outdoor multi-oil circuit breaker, reaching the international advanced level.
The circuit breaker conforms to the requirements of GB 1984-2003 high-voltage ac circuit breaker, GB/T 11022-1999 common technical requirements of high-voltage switchgear and control equipment standard, OUT 403-2000 12kV-40.5kV high-voltage vacuum circuit breaker ordering technical conditions, OUT 593-1996 common ordering technical guidelines for high-voltage switchgear and I EC60056, etc.
Main technical parameters
Item |
Unit |
Data |
|
Rated voltage |
KV |
40.5 |
|
Withstand voltage of 1 min power frequency |
Dry test (fracture, interphase, to ground) |
KV |
95 |
Wet test (ground and outer insulation) |
KV |
85 |
|
Lightning shock resistance (peak) |
KV |
185 |
|
Rated current |
A |
1250、1600、2000 |
|
Rated short circuit breaking current |
KA |
20、25、31.5 |
|
Rated short circuit shut-off current (peak) |
KA |
50、63、80 |
|
Rated operating sequence |
0-0.3s-C0-180s-CO |
||
Rated short - term withstand current |
KA |
20、25、31.5 |
|
Rated peak withstand current |
KA |
50、63、80 |
|
Rated short - term withstand current duration |
S |
4 |
|
Rated operating voltage |
V |
220 |
|
Rated number of short circuit breaking current |
times |
20 |
|
Full break time |
ms |
≤80 |
|
Mechanical life |
times |
10000 |
|
Weight |
Kg |
1400 |
Outline and mounting dimensions