VBP INDOOR HIGH VOLTAG SOLID VACUUM CIRCUIT BREAKER

Short Description:

VBP Series Indoor AC HV Vacuum Circuit Breaker is the electric system switchgear of rated voltage 12kV/24kV. It is also as the control and protection unit of industrial enterprises and mines. power station and substation device. Circuit breaker can be proceeded frequent operation and has many times breaking and rapid reclosure capacity, and has reliable interlock function. The CB is in line with GB/T1984-2014 “HV AC CB”. JB/T3855-2008 “3.6-40.5kV indoor AC HV vacuum CB”. DL/T403-2000″12kV-40.5kV HV vacuum CB ordering technical condition” and IEC 62271-100: 2008. The device is front and back split charging structure, not only as a fixed installation unit but also match handcart unit with base plate cart.

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Main Technical Parameters

No.	Item	Unit	Data
1	Rated voltage	kV	12/24
2	Rated Frequency	Hz	50
3	Rated l min power frequency withstand voltage (phase to phase, to earth, fracture	kV	42/65
4	Rated lightning impulse withstand voltage (phase to phase, to earth, fracture	kV	75/125
5	Rated operation sequence		O-t-CO-t’-CO

No.	Item	Unit	Model of CBVBP-12/… VBP-24/…	VBP-12/…
1	Rated current	A	630 1250 1250 1600 2000 2500 1250 1600 2000 2500 3150	3150 4000
2	Rated short circuit breaking current	kA	20/25 31.5 40	50
3	Rated short circuit makine current (peak)	kA	50/63 80 100	125
4	Rated duration of short circuit	s	4 4 4	4
5	Rated breaking times of short circuit (times)	Times	50 50 30	20
6	Mechanical life (times)	Times	30000 30000 30000	20000