VT 19-24 EP Indoor HV AC Resin Vacuum Circuit Breaker Made in China - Suppliers and Manufacturers

Product Description

1.Introduction Of VT 19-24 EP Indoor HV AC Resin Vacuum Circuit Breaker

VT 19-24 EP Indoor HV AC Resin Vacuum Circuit Breaker is used in three-phase AC electric system of 50HZ、12kV. It is used as control and protection department in the mining company 、power factory and substation

2.Parameter (Specification) of VT 19-24 EP Indoor HV AC Resin Vacuum Circuit Breaker

The main parameter of VT 19-24 EP Indoor HV AC Resin Vacuum Circuit Breaker

Rated voltage		24kV
Rated frequency		50Hz
Rated lighting impulse withstand voltage		125kV
Rated 1 min power frequency withstand voltage		65kV
Rated operation sequence		O-0.3s-CO-180s-CO
Rated current (A)		630、1250	1250、1600、2000、2500
Rated short circuit breaking current (r.m.s, kA)		20/25	31.5
Rated short circuit making current (peak value, kA)		50/63	80
Rated short time withstand current/short circuit continuous time (kA/s)		20、25/4	31.5/4
Rated peak value withstand current (kA)		50/63	80
Breaking times of rated short circuit(times)		30
Mechanical duration (times0		20000
Weight (kg)	Fixed type	≤250
	Truck type	≤350

Mechanical characteristic of 24KV VT 19-24 EP Indoor HV AC Resin Vacuum Circuit Breaker

Name		Unit	Data
Distance of contact terminal		mm	12±1
Over-travel			4±1
Three-phase opening & closing asynchronous		ms	≤2
Tripping time of closing contact terminal		ms	≤2
Closing & opening time	Opening	ms	≤50
	Closing		≤70
Average opening speed(after opening 6mm)		m/s	1.4±0.3
Average closing speed(after closing 6mm)			0.8±0.2

4. Service condition of VT 19-24 EP Indoor HV AC Resin Vacuum Circuit Breaker

▲Normal condition
Ambient temperature +40℃~-15℃
Ambient humidity Daily average relative humidity ≤95%
Daily average stream pressure ≤2.2ⅹ10-3MPa
Monthly average relative humidity ≤90%
Monthly average stream pressure ≤1.8ⅹ10-3Mpa
Elevation ≤1000m
Degree of earthquake <8
The site has no water、no fire goods and explosion goods、no chemical goods and serious quake.

▲Special condition
If user has some special requirement, please negotiate by manufacture and user.

5. Qualification Of VT 19-24 EP Indoor HV AC Resin Vacuum Circuit Breaker

VT 19-24 EP Indoor HV AC Resin Vacuum Circuit Breaker is identified by some national standards and international relative standards, such as GB1984、GB/T11022、DL/T403 and IEC62271, etc. It has reliable lockage, used as truck department or fixed installation department.