VSG-12 type side-mounted indoor high-voltage vacuum circuit breaker ZN63(VS1)-24/630-25

The VSG indoor high-voltage vacuum circuit breaker (hereinafter referred to as the circuit breaker) is an indoor switching device used in 12KV/24KV power systems. As a protection and control unit for power grid equipment and industrial and mining enterprise power design, it is suitable for switching various properties. Loads and frequent operations, multiple short-circuit current breaking situations. The product adopts a new circuit breaker operating mechanism. The primary part of the VSG can use an international brand of solid-sealed poles to seal the vacuum arc extinguishing chamber and the main conductive circuit parts as a whole to protect the arc extinguishing chamber from collision, dust and condensation. Impact, strong environmental adaptability, greatly reducing operation and maintenance costs, truly realizing the product is partially maintenance-free, and the operating mechanism requires less maintenance; the operating mechanism and the circuit breaker body are integrated, verified by type tests, and have E2 class electrical life , M2 level mechanical life.

 Product manual download 

Model expression

Products based on standards

The circuit breaker complies with GB 1984-2003 "High Voltage AC Circuit Breaker" JB 3855-1996 "3.6~40.5kV Indoor AC High Voltage Vacuum Circuit Breaker",DL/T403-2000 "12~40.5kV High Voltage Vacuum Circuit Breaker Ordering Technical Conditions" and the relevant requirements of IEC 62271-100:2001.

Products based on standards

a)：Ambient temperature

                     Maximum temperature: +40℃
                     Minimum temperature: -15℃

b)：Environment humidity

                     Daily average relative humidity: ≤95%
                     Monthly average relative humidity: ≤90%
                     Daily average vapor pressure: ≤2.2×10³MPa
                      Monthly average vapor pressure: ≤1.8×10³MPa

c)：Altitude: no more than 1000m;

d)：The earthquake intensity does not exceed 8 degrees;

e)：The surrounding air is not significantly contaminated by dust, smoke, corrosive and/or flammable gases, vapors or salt spray.

Note: If the requirements exceed the above normal usage environmental conditions, please consult with the manufacturer.

 1. Technical Parameters

2. Mechanical characteristics test and loop resistance test, appearance inspection

3.Wiring 2D diagram