PRODUCT DETAILS
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.
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
Product number | ZN63(VS1)-24/630-25 |
Rated voltage(kV) | 12/24 |
Rated current(A) | 630 |
Rated short circuit breaking current(kA) | 25 |
Energy storage voltage(V) | AC/DC220 |
Opening and closing operating voltage(V) | AC/DC220 |
2. Mechanical characteristics test and loop resistance test, appearance inspection
Test items | Skills requirement |
Contact spacing | 11±1mm |
Loop resistance | ≤55μΩ(630A) |
Contacts bounce when closing | ≤2ms |
Three-phase opening synchronicity | ≤2ms |
Average separation speed | 1.2±0.2m/s |
Average merge speed | 0.8±0.2m/s |
Closing time | 25≤t≤60ms |
Time apart | 18≤t≤45ms |
3.Wiring 2D diagram