1. ZN39 Series 33KV 35kv 40.5kv Indoor Truck Type Vacuum Circuit Breaker Vcb
ZN39-40.5 type indoor high voltage vacuum circuit breaker series, series of three-phase ac 50 hz, rated voltage 40.5 kV indoor high-voltage power distribution equipment. With JYN1-35, the GBC - 35 switchgear systems.
The products comply with GB1984 "ac high voltage circuit breaker".
circuit breaker adopts the air circuit breaker under the condition of meet the normal operation of the air distance and the creepage distance requirements,
Overall it is reasonable, the structure is stable, adjustment is convenient. Operators use electromagnetic mechanical machinery CT19N CD10 - III or spring.
Circuit breaker has a set of interlocking device, with the switch cabinet, using force machinery atresia, satisfies the requirement of switchgear "five prevention" function.
2. Environmental Conditions
- 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
- Altitude:≤1000m
- Earthquake intensity:≤8 degree
- 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. 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.
5. 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>
6. Advantages
- Small volume and simple structure
- Easy maintenance and long service life
- High reliability and stable performance
- Flexible installation
- No explosion danger and no pollution
7. Photo and drawing
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ZN39 33KV 35kv 40.5kv Indoor Truck Type Vacuum Circuit Breaker Images
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