Indoor ZN39 33KV 40.5kv Draw Out Vacuum Circuit Breaker
1. Indoor Application ZN39 Series 33KV 40.5kv Draw Out Vacuum Circuit Breaker
ZN39-40.5 type indoor high voltage vacuum circuit breaker is ac 50 hz, rated voltage 40.5 kV indoor high-voltage power distribution equipment. With JYN1-35, the GBC - 35 switchgear systems.
circuit breaker adopts the air circuit breaker under the condition of meet the normal operation of the air distance and the creepage distance requirements,
2. Environmental Conditions
- Altitude:≤1000m
- Earthquake intensity:≤8 degree
- Ambient temperature: -25℃~ +40℃(conveyance under -30°C is allowed)
- Relative humidity:daily average relative humidity: ≤95%; monthly average relative humidity≤90%; daily average saturated vapor pressure ≤2.2KPa; monthly average value ≤1.8KPa
- The installation should be free from fire, explosion, severe vibration, chemical corrosion and serious pollution.
3. Technical Data
| No. | Item | Unit | Data |
| 1 | Rated voltage | KV | 40.5 |
| 2 | Rated frequency | Hz | 50 |
| 3 | Rated current | A | 1250,1600,2000 |
| 4 | Rated short-circuit break current | KA | 20,25,31.5 |
| 5 | Rated peak value withstand current | KA | 60,80 |
| 6 | Rated short-circuit Breaking current times | times | 20 |
| 7 | Rated short-circuit duration time | s | 4 |
| 8 | Rated operation order | O-0.3s-CO-180s-CO | |
| 9 | Energy-storage motor rated voltage | V | AC 200/DC 110 |
| 10 | Mechanical life-span | times | 10000 |
| 11 | Closing time | ms | ≤100 |
| 12 | Break-brake time | ms | ≤60 |
4. Standards
- GB1984 <AC high voltage circuit breaker >
- JB3855 <3.6-40.5 KV indoor AC high voltage vacuum circuit breaker>
- DL/T403< Ordering technical conditions of 12-40.5 KV indoor AC high voltage vacuum circuit breaker>
5. Application
ZN39-40.5 vacuum circuit breaker is the indoor high voltage high voltage distribution equipment with 40.5KV rated voltage, three phase AC 50HZ. It applies to mobile metal closed switchgear cabinet JYNI-35 and high-voltage switchboards GBC. The product matches to the items of GB1984 <AC high voltage circuit breaker >. Accessory product: Hand Cart and PT Cart. This kind was installed CD10Ⅲ electromagnetic operating mechanism or CT19N spring operating mechanism with reliable interlocking device.
6. Advantages
- Small volume and simple structure
- Easy maintenance and long service life
- Flexible installation
- No explosion danger and no pollution
- High reliability and stable performance
7. Photo and drawing
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