BQVN-12GD three station indoor vacuum ckt breaker

Product Profile

The three station vacuum circuit breaker product integrates vacuum circuit breakers, isolation switches, grounding switches, and sensors; The product is designed as a side mounted product, which conforms to the trend of miniaturization and is suitable for cabinet size (450 × 1000 × 1800). Three station vacuum circuit breakers are suitable for products used in 6-12kV medium voltage power grids. The side mounted fixed sealed indoor high-voltage three station vacuum circuit breaker has excellent electrical and mechanical properties, reliable and stable mechanism, and long service life. The main circuit adopts a fixed sealed pole, which enhances the environmental adaptability and insulation reliability of the circuit breaker; Reliable mechanical and electronic performance, extended mechanical and electronic lifespan, make maintenance free circuit breakers possible.

There are currently two models of three station vacuum circuit breakers, BQVN-12GD/630-25/BQVN-12GD/1250-31.5.

Traditional high-voltage fixed switchgear XGN2 or XGN66, etc., require separate installation of isolation switches, vacuum circuit breakers, grounding switches, sensors, and mechanical interlocks in the complete factory. The process is complex, time-consuming, and requires high technical skills from workers. After using this product, it is equipped with a multifunctional vacuum circuit breaker. The switch body has more integrated and systematic isolation stations, circuit breaker stations, and grounding stations, making installation simple and fast Convenient and reliable.

elaborate on

Three workstations can be operated manually or electrically:

Manual operation

1. Use a dedicated energy storage handle for energy storage.

2. Closing: Connect the closing button. (If equipped with a closing lock or undervoltage device, the secondary circuit must be powered on before closing)

3. Opening: Press the opening button.

Electric operation

1. After the secondary circuit is powered on, the energy storage mechanism automatically stores energy.

2. Closing: Press the closing button in the control circuit.

3. Opening: Press the opening button in the control circuit.

When inspecting high-voltage vacuum circuit breakers, attention should be paid to the following points: 1. When using vacuum circuit breakers for power verification, the operation supervision system must be carefully implemented first, with one person operating and one person monitoring.

2. The operator is in front and the guardian is behind.

3. When using vacuum circuit breakers, it is necessary to pay attention to the voltage level of the tested electrical equipment, otherwise it may endanger the personal safety of operators or cause erroneous judgments.

4. Do not expose it to the scorching sun in the open air. It should be stored in a dry and ventilated place. Do not wipe or come into contact with corrosive chemical solvents and detergents.

5. The insulation part refers to the part from the lower metal connection screw of the indicator to the end of the protective ring, while the handshake part refers to the part below the protective ring. The insulation and handshake parts vary in length depending on the voltage level.

Outdoor high-voltage vacuum circuit breakers can only be produced and used in normal ways and methods to ensure the maximum operational safety of the system

6. Test on equipment that requires electrical verification.

7. When testing the power of multi-layer lines installed on the same pole, low voltage should be tested first, high voltage should be tested later, lower layer should be tested first, and upper layer should be tested later.

8. It should be noted that during storage and transportation, it should not be subjected to strong vibration or impact, and unauthorized adjustment and disassembly are not allowed. Any environment that affects insulation performance, such as rain and snow, must not be used.

9. Vacuum circuit breaker in use