Ningbo Tianan (Group) Co.,Ltd.
Ningbo Tianan (Group) Co.,Ltd
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Indoor AC High Voltage Vacuum Circuit Breaker , 35Kv 36KV Handcart type
General
VT12(ZN85)-40.5 Series indoor AC HV vacuum breaker is mainly used in three phase AC 50Hz, rated voltage 40.5kV power system as opening and closing the load current, overload current as well as short-circuit current. It is suitable for protecting and controlling electric appliances for industrial and mining enterprise, power plant and substation in places with different load and frequency operation.
1. Environmental Condition
2. Technical Data
| No. | Item | Unit | Data |
| 1 | Rated voltage | KV | 40.5 |
| 2 | Rated current | A | 1250,1600,2000,2500,3150 |
| 3 | Rated frequency | HZ | 50 |
| 4 | Rated short-circuit breaking current | KA | 25,31.5 |
| 5 | Dynamic current(peak) | KA | 63,80 |
| 6 | Mechanical life | times | 10000 |
| 7 | Rated short-circuit breaking cuerrent breaking number | times | 20 |
| 8 | Rated operating sequence | O-0.3S-CO-180S-CO | |
| 9 | Rated single capacitor device ON-OFF current | A | 630 |
| 10 | Rated single back-to-back capacitor device current | A | 400 |
| 11 | Rated voltage electrical energy storage | V | AC,DC:110;120 |
| 12 | Hop Tripping coil rated voltage | V | AC,DC:110;120 |
| 13 | Hop Tripping coil rated current | A | 1.05(110V),0.96(220V) |
| 14 | Contact closing bounce time | ms | ≤3 |
3. Application
35 kv 36kv 33kv zn85 vacuum circuit breaker , three phase AC 50HZ. Apply to industrial and mining enterprises, power plants and substations as the division and load current, overload current fault current purposes, particularly suitable for occasions of frequent operation.
4. Advantages