Technical FAQs 4

What is SF6 gas circuit breaker?

SF6 Gas Circuit-Breaker 72.5kV up to 252KV, 25kA~63kA, 1250A~4000A for Outdoor Three phase/Single phase Substation installation .Comply with IEC/ANSI standards Provided customized manufacture Accountable solution for safety and reliability Wide range offering, easy business and convenient installation . Dead tank type SF6 Gas Circuit- Breaker

What is LW series self-energy sulfur hexafluoride circuit breaker?

Daily average ambient air relave humidity ≤ 95%, on average ≤ 90%; LW Series self-energy sulfur hexafluoride circuit breaker uses the principle of self-interrupter, greatly reducing the pressure cylinder diameter and weight, reduced operating power, making equipped with spring operating mechanism to become a reality.

How does SF6 gas extinguish an arc?

The arc combustion makes SF6 gas in the thermal expansion chamber fiercely expanding to generate gas flow blowing to nozzle to the nozzle to extinguish the arc. SF6 gas in the compression chamber is compressed to generate gas flow, blowing to the nozzle to extinguish the arc, which then extinguishes.

What are the parts of a circuit breaker?

The upper part of the body is a single-pole circuit breaker interrupter single fracture, the middle pillar porcelain sets, the lower part is used for sealing, opening spring and buffer. Verification of degree of protection: IP55, IK10, wide temperature range (-40?~55?)

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