Product Details

VS1-24kV Vacuum Circuit Breakers

VS1 indoor high-voltage alternating-current vacuum circuit breaker has a frequency of 50Hz and a rated voltage of 24kV. It applies to the electrical equipment control and protection in industrial and mining enterprises, power plants and substations, particularly to the places needing frequent operation. It can be fixed in a switch cabinet or installed on a handcart. With stable performance and convenient installation, it is the best choice for the control and protection of high-voltage power transmission and distribution systems.

Normal operating conditions

● Ambient temperature: - 40°C~+40°C (below 35°C within 24 hours)

● Relative humidity: ≤95% (daily average) or ≤90% (monthly average)

● Altitude: ≤ 1000m

Technical Parameters

Item	Unit	Reference value
Rated voltage	kV	24
Rated insulation level: Lightning impulse withstand voltage	kV	145
Rated insulation level: 1 min power-frequencywithstand voltage	kV	65
Rated frequency	Hz	50/60
Rated current	A	630/1250/1600/2000/2500/3150
Rated short-circuit breaking current	kA	20/25/31.5
Rated short-circuit making current(peak value)	kA	50,63,80
Rated short-time withstand current	kA	20/25/31.5/40
Rated withstand current(peak value)	kA	50,63,80
Required operation sequence		O-0.3s-CO-180s-CO
Rated short-circuit duration	S	4
Times of making-breaking with the rated short-circuit current	Times	30
Mechanical life		M2 level
Weight	kg	150

The actuator employs spring energy storage which can be done electrically or manually. When the circuit breaker is operating, the energy generated by the energy storage spring is transferred to the connecting rod mechanism through an output cam and then to the movable contact through the connecting rod mechanism. The advanced and appropriate buffer avoids bounces in breaking and reduces the impact and vibration in breaking. The actuator almost needs no maintenance or adjustment. It can operate for up to 10,000 times.