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Vacuum Circuit Breaker
Home
Products
HT & LT Transmission & Distribution Equipment's
Vacuum Circuit Breaker
Category
HT & LT Transmission & Distribution Equipment's
Product
Vacuum Circuit Breaker
Product Details
Sr. No.
Description
Key Points / Range
1
Metal-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.
2
11KV 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
3
33KV 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