Audited Supplier
VHE-40.5
Product Description
indoor high voltage vacuum circuit breaker
VHE-40.5 vacuum circuit breaker with 40.5KV rated voltage, indoor distribution device of three-phase ac 50HZ, Is a new product that developed by our company independently. We have the intellectual property rights,The product can be compatible with the ZN85.VN1.VBD and so on.
VHE-40.5 indoor vacuum circuit breaker (hereinafter referred to as the circuit breaker) ,Is a type of high voltage switch equipment which appropriate to 40.5kv,50Hz three phase alternating current system. For points and load current, overload current, fault current of industrial and mining enterprises,Power plant and substation. Circuit breaker and operating mechanism arranged up and down structure,Effectively reduced the depth of the circuit breaker. Three-phase arcing chamber and the associated charged body are isolated by three independent epoxy insulating tube,Constituting a compound insulation construction. Circuit breaker can meet the normal operation requirements of the air distance and the creep age distance,and effectively reduce the volume of circuit breaker. Main electric circuit of vacuum arcing chamber with dynamic and static conductive connection are installed in the insulation cylinder,Phase spacing is only 300mm. The primary loop electrical connections with high reliability all adopt the fixed connection. Insulating cylinder is mounted on the top of circuit breaker frame. The spring operating mechanism which is specially designed for this new type of circuit breaker is mounted on the circuit breaker, Its structure is much more suitable for up and down layout form of circuit breaker,And become the integral part of the whole structure. Mechanism design is terse,The output curve and the performance is much more suitable for the characteristics and requirement of 40.5 kV vacuum circuit breaker. Overall layout is reasonable, beautiful,Terse, compact design,Flexible operation, Electric reliable performance, long service life, Convenient maintenance and maintenance-free features.The circuit breaker is suitable for frequent operation,Various occasions and quite harsh operating conditions.
The normal conditions
Mechanical characteristics of circuit breaker assembly after adjustment
Dimensions
VHE-40.5 vacuum circuit breaker with 40.5KV rated voltage, indoor distribution device of three-phase ac 50HZ, Is a new product that developed by our company independently. We have the intellectual property rights,The product can be compatible with the ZN85.VN1.VBD and so on.
VHE-40.5 indoor vacuum circuit breaker (hereinafter referred to as the circuit breaker) ,Is a type of high voltage switch equipment which appropriate to 40.5kv,50Hz three phase alternating current system. For points and load current, overload current, fault current of industrial and mining enterprises,Power plant and substation. Circuit breaker and operating mechanism arranged up and down structure,Effectively reduced the depth of the circuit breaker. Three-phase arcing chamber and the associated charged body are isolated by three independent epoxy insulating tube,Constituting a compound insulation construction. Circuit breaker can meet the normal operation requirements of the air distance and the creep age distance,and effectively reduce the volume of circuit breaker. Main electric circuit of vacuum arcing chamber with dynamic and static conductive connection are installed in the insulation cylinder,Phase spacing is only 300mm. The primary loop electrical connections with high reliability all adopt the fixed connection. Insulating cylinder is mounted on the top of circuit breaker frame. The spring operating mechanism which is specially designed for this new type of circuit breaker is mounted on the circuit breaker, Its structure is much more suitable for up and down layout form of circuit breaker,And become the integral part of the whole structure. Mechanism design is terse,The output curve and the performance is much more suitable for the characteristics and requirement of 40.5 kV vacuum circuit breaker. Overall layout is reasonable, beautiful,Terse, compact design,Flexible operation, Electric reliable performance, long service life, Convenient maintenance and maintenance-free features.The circuit breaker is suitable for frequent operation,Various occasions and quite harsh operating conditions.
The normal conditions
- Ambient temperature: max +40°C ,min -15ºC(storage and transportation under -30ºC is allowed);
- Altitude: ≤1000m;
- Relative humidity: Daily average relative humidity≤95%; Monthly average relative humidity≤90%; Daily average saturated vapor pressure:≤2.2*10-3 MPa,Monthly average value ≤1.8*10-3 MPa;
- Earthquake intensity:≤8 degree;
- The installation should be free from fire,Explosion, Severe vibration,Chemical corrosion and serious pollution.
Main Technical Data
No. | Item | Unit | Value | ||
| 1 | Rated voltage | KV | 40.5 | ||
| 2 | Rated insulation level | Rated lighting impulse withstand voltage (peak) | KV | 185 | |
| 1min Short-time power frequency withstand voltage(1min) | KV | 95 | |||
| 3 | Rated short-circuit breaking current | KA | 25 | 31.5 | |
| 4 | Rated current | A | 1250/1600 | 1250/1600/2000 | |
| 5 | Rated withstand current(peak) | KA | 63 | 80 | |
| 6 | Rated operations of short circuit breaking current interruption | 20 | |||
| 7 | Rated short-circuit duration | S | 4 | ||
| 8 | Rated operating sequence | -0.3S--180S- Opening-0.3S-closing opening-180S-closing opening | |||
| 9 | Rated power voltage of closing and opening operating loop | V | AC,DC220 AC,DC110 | ||
| 10 | Closing time | ms | 50~100 | ||
| 11 | Opening time | ms | 30~60 | ||
| 12 | Rated breaking current( a capacitor) | A | 630 | ||
| 13 | Rated breaking current(back to back capacitor) | A | 400 | ||
| 14 | Mechanical life | 20000 | |||
Mechanical characteristics of circuit breaker assembly after adjustment
No. | Item | Unit | Value |
| 1 | Contact distance | mm | 22±2 |
| 2 | Contact over travel | mm | 8±2 |
| 3 | Average opening speed | m/s | 1.8±0.2 |
| 4 | Average closing speed | m/s | 0.65±0.2 |
| 5 | Contact bouncing duration at closing operation | ms | ≤3 |
| 6 | Operating mechanism type | 3AV Special spring mechanism | |
| 7 | Three-pole closing operation un-simultaneity | ms | ≤2 |
| 8 | Conductive circuit resistance of each phases | μΩ | <45 |
