Product Profile of Outdoor 11 kV Porcelain Clad Vacuum Circuit Breakers

GR Power Switchgear Ltd. Manufactures Outdoor 11 kV Porcelain Clad Vacuum Circuit Breakers. The rated voltage of Outdoor 11 kV Porcelain Clad Vacuum Circuit Breakers is 11 kV. The rated current is 630 / 1250 / 2000 Amps. The nominal voltage is 12 KV. The rated frequency of the system is 50 Hz.

GR Power Switchgear Ltd. Is an ISO 9001: 2000 certified company. GR Power Switchgear Ltd. Offers horizontal double break type isolator, horizontal centre break type isolator, 11 kV porcelain clad vacuum circuit breakers [outdoor], motor/manual operating mechanism boxes, etc.

Technical specification for 11 KV Porcelain Clad Vacuum Circuit Breakers:

• Basic Insulation level: 75 / 95 kV peak

• Lightning impulse: 1.2 micro sec.

• Power frequency withstand voltage: 28/35 KV rms for 1 Minute

• Rated making capacity: 33.2 / 50 / 62.5 kA peak

• Rated short time current: 12.5 / 20 / 25 kA for 3 sec.

• Rated Breaking capacity: 12.5 / 20 / 25 kA at 12 kV

• Rated Auxiliary control voltage: 24 / 110 / 220 V DC

• Rated voltage of charging motor: 220 / 230 V AC