VS1-24indoor high-voltage vacuum circuit breaker is an AC three-phase 50HZ indoor high-voltage switching equipment with rated voltage of 24KV,mainly applied for protection and control in power distribution system of power plant,electric substation and industrial and mining enterprise,It is especially applied for breaking of important load and place requiring frequent operation.
The manufacture of circuit breaker complies with GB1984-2003"AC High-Voltage Circuit Breaker",JB3855-1966"Technical Conditions for Ordering 3.6-40.5KV Indoor Vacuum Circuit Breaker"of national standard and relative IEC standards.It Has reliable interlocking function.
The operating mechanism of circuit breaker is spring energy storage type,which is either available for AC/DC energy storage operation or manual operation.
The circuit breaker can also be equipped with permanent magnetic operating mechanism of long service life,its mechanical life can get to 100000 times,which is suitable for place with extremely frequent operation.
The assembled structure design makes the circuit breaker can not only be used as a fixed unit but also as mid-cabinet unit when it is equipped with chassis.
Normal working environment
1.Altitude:≤2000m,It should be custom-made for>2000m.
2.Ambient temperature:Max.+40 ℃,Min.-25℃
3.Relative Humidity:Daily average value should be less than 95%,monthly average value should be less than 90%
4.The earthquake intensity:less than 8 degree.
5.The place where it is used is free from fire,explosion,chemical corrosion and intense vibration.
630 1250 1600
Rated short circuit breaking current
20 25 31.5
Switch Current of Nominal short-circuit(peak value)
50 63 80
Substantial time of Nominal short-circuit
Breaking current frequency under rated short circuit
Rated operating sequence
Nominal Durable Voltage for Thunder-and Lightning Impact(fracture)
1min Rated power frequency withstand voltage(fracture)
Rated energy storage and operating voltage
energy storage time
Mechanlcal characteristic adjustment parameter
Switch off speed
Switch on speed
Contact closing bounce time
rated contact pressure
20KA(2000≤200) 25KA(2400±200) 31.4KA(3100±200)
Three-phase switching on or off non-synchronic
External & Build in Dimension