Visión general
ZN63(VS1)-12 type indoor high-voltage vacuum circuit breaker, a three-phase AC 50Hz rated voltage of 12kV power system indoor switching equipment, as the power grid equipment, industrial and mining enterprises power equipment protection and control unit. Suitable for frequent operation at rated operating current, or multi-alternating short-circuit current.
The circuit breaker adopts the integrated design of the operating mechanism and the circuit breaker body, which can be used as a fi xed installation unit, and can also be equipped with a special propulsion mechanism to form a handcart unit.
Modelo Significado
VS |
1 |
|
12 |
1 |
□ |
|
□ |
↓ |
↓ |
|
↓ |
|
↓ |
|
↓ |
Indoor high
voltage vacuum
circuit breaker |
Product design serial number |
|
Tensión nominal (KV) |
|
Corriente nominal (A) |
|
Rated short circuit breaking current(kA) |
Principales parámetros técnicos
Artículo |
Unidades |
Argumento |
Tensión nominal |
|
kV |
12 |
Rated insulation
level |
Peak rated lightning impulse withstand voltage |
kV |
75 |
1min frecuencia de alimentación tensión soportada |
42 |
Corriente asignada de corte en cortocircuito |
kA |
20/25 |
31.5 |
40 |
Corriente nominal |
A |
630、
1250 |
630、1250、
1600、2000、
2500、3150 |
630、1250、1600、2000、
2500、3150 |
Rated thermal stable current(RMS) |
kA |
20/25 |
31.5 |
40 |
Rated dynamic stable current (peak) |
63 |
80 |
100 |
Rated short circuit closing current (peak) |
63 |
80 |
100 |
Corriente nominal de corte en cortocircuito Tiempos de corte |
Number of times |
50 |
Secondary circuit power frequency withstand voltage (Imin)s |
V |
2000 |
Rated operating sequence |
O-0.3-CO-180s-CO |
O-180s-CO-180s-CO |
Rated thermal stability time |
S |
4 |
Rated single/back-to-back capacitor bank breaking current |
A |
630/400800/400(40kA) |
Vida mecánica |
Number of times |
10000 |
External Mounting Dimension (mm)

Corriente nominal (A) |
630 |
1250 |
1600 |
Rated short circuit breaking current (A) |
20/25 |
25/31.5 |
31.5 |