Category
HT & LT Transmission & Distribution Equipment's





Product
Vacuum Circuit Breaker



Product Details
Sr. No.DescriptionKey Points / Range
1Metal-clad Indoor Vacuum Circuit Breaker (vcb)• Sheet Metal Enclosure-Pre-treated & Powder Coated.

• Bolted Construction.

• Extendable from both sides of panal.

• PVC Insulated Busbar.

• No live parts accessible & exposed.

• In-built safety shutter.

• All Switching operations performed with front door closed.

• Circuit Breaker withdraw type with interlock & _xed type.

• Separate compartment for Breaker, Busbar, CT/Cable & Instrument chamber.

• Access to cable terminals from the rear.
211KV VCB• Rating from 630A to 4000A (630, 800, 1250, 1600, 2000, 2500, 3150, 4000A)

• STC rating 25KA , 31.5 KA, 40KA, 50KA for 4 sec (only VCB)

• BIL: 75/85KV

• Power Frequency: 42 / 48KV

• Phase to Phase Clearance is 210 mm (minimum)

• Flower type contact for better contact grip.

• Vacuum Interrupter is completely insulated in Epoxy insulated tube.

• 25KA range VCB manufactured at Pondicherry. 40KA & 50KA
333KV AIS panel and 24KV AIS panel also. • Rating up to 1250A VCB or SF6 circuit breaker

• STC : 25KA for 3 sec

• Internal ARC : 25KA for 1 sec (AFL)

• Phase to Phase Clearance : 350 mm

• 50% space saving (depth wise) as compared to any other AIS panels. (Depth of HMH is 1400 mm against 2500 mm of other AIS panels)

• Less maintenance

• Fixed circuit breaker with Disconnector with suitable interlock for much more safe operation.

• Type Tested as per IEC62271-200