ZW32-12 (G) series outdoor high voltage vacuum circuit breaker
ZW32-12 (G) series outdoor high voltage vacuum circuit breaker
ZW32-12 (G) series outdoor high voltage vacuum circuit breaker for AC 50HZ, voltage 10 ~ 12KV three-phase power system, as breaking, Closing load current use, it has overload and short circuit protection function, to meet the control and measurement requirements, also allows remote control and monitoring. For protect and control the distribution systems of substation and industrial and mining enterprises and for the frequent use places of the rural power grid.
Mainly Technical parameters
No | Item | Unit | Value | |||
1 | Rated voltage | kV | 12 | |||
2 | Rated insulation level | 1min power frequency withstand voltage | Dry | 42 | ||
Wet | 34 | |||||
Lightning impulse withstand voltage (peak) | 75 | |||||
3 | Rated current | A | 630;400;200 | |||
4 | Rated short-circuit breaking current | kA | 20;16;12.5 | |||
5 | Rated operating sequence |
| O-0.3s-CO-180s-CO | |||
6 | Rated short-circuit breaking current breaking times | times | 30 | |||
7 | Rated short-circuit closed current (peak) | kA | 50 | |||
8 | Rated peak withstand current | kA | 50 | |||
9 | Rated short-time withstand current | kA | 20 | |||
10 | Rated short-circuit duration | s | 4 | |||
11 | Opening time (magnetic releasing) | Max operating voltage | ms | 23~45 | ||
Rated operating voltage | ||||||
Min operating voltage | 23~60 | |||||
12 | Closing time | ms | 25~45 | |||
13 | Total break time | ms | ≤100 | |||
14 | Arcing time | ms | ≤20 | |||
15 | Mechanism life | times | 1000 | |||
16 | Storage energy motor rated input power | W | 40 | |||
17 | Rated operating voltage and auxiliary circuit rated voltage | V | DC220,110,24 | |||
AC220,110,24 | ||||||
18 | Storage energy time on rated voltage | s | ≤10 | |||
19 | Over-current tripper | Rated current | A | 5 | ||
Tripping current precision | % | ±10 | ||||
ZW32-12 (G) series outdoor high voltage vacuum circuit breaker
