ZW32-12
High Voltage Circuit Breakers
Manual Type
Vacuum
Fixed
Circuit Breaker
Conventional Circuit Breaker, Overcurrent Protection
50Hz
12kv
630/1250A
20/25ka
DGG
Export Box
China
8504311000
Product Description
Photos of Product
General
ZW32-12 Series outdoor AC vacuum circuit breaker is 12kV distribution equipment of 3 phase,50Hz. It's used to connect and break load current,over-load current, and short-circuit current. It's applicable for substations, industry, mining, and urban and rural electric power networks, especially applicable on occasions with frequent operation and automatic power distribution network.
Model and Definition
Technical specification
General
ZW32-12 Series outdoor AC vacuum circuit breaker is 12kV distribution equipment of 3 phase,50Hz. It's used to connect and break load current,over-load current, and short-circuit current. It's applicable for substations, industry, mining, and urban and rural electric power networks, especially applicable on occasions with frequent operation and automatic power distribution network.
Model and Definition
Technical specification
| Technical specification | ||||
| No. | Item | Unit | Data | |
| 1 | Rated frequency | Hz | 50 | |
| 2 | Rated voltage | kV | 12 | |
| 3 | Rated current | A | 630/1250 | |
| 4 | Rated short-time power frequency withstand voltage | Interphase, to earth(wet) | kV/min | 42/1 |
| Interphase, to earth(dry) | 48/1 | |||
| Break(dry) | 34/1 | |||
| Secondary circuit to earth | 2/1 | |||
| 5 | Rated lightning impulse withstand voltage | Interphase, to earth | kV | 75 |
| Break | 85 | |||
| 6 | Rated short-circuit breaking current | kA | 20/25 | |
| 7 | Rated short-circuit making current(peak) | 50/63 | ||
| 8 | Rated short-time withstand current and duration | kA/s | (20/25)/4 | |
| 9 | Rated peak withstand current | kA | 50/63 | |
| 10 | Rated short-circuit breaking current breaking times | Times | 30 | |
| 11 | Rated operating voltage and rated voltage of the auxiliary circuit | V | AC/DC220,DC48,DC24 | |
| 12 | Main circuit resistance | Without isolation | μΩ | ≤80 |
| With isolation | ≤120 | |||
| 13 | Mechanical life | Times | 10000 | |
| Note: If the altitude is over 1000m, the rated insulation level should be modified as appropriate. | ||||
