• Huayi Electric Co Limited (HEAG)

Circuit Breaker

Huayi Electric Co Ltd (HEAG) is an authorised Chinese manufacturer mainly producing electrical products in power distribution system and switchgear. It mainly produces high/low voltage switchgear, SF6 and vacuum circuit breaker, load break switch, disconnector, earthing switch, CT&PT, watt-hour meter, composite insulators, heat-shrinkable material, microcomputer protection and control devices and wind power generators. Circuit breaker HV SF6, Model LW36B-126/145 is based on the technology of LW36-126/145, developed by Xi'an HV Electrical Apparatus Institute and HEAG group. It absorbs experiences and technics in similar product manufacturing and perfected as a new generation of self-evolving SF6 HV circuit breaker. LW36B-126 is used to control and protect circuit in 126/145 kV and AC 50/60 Hz power system. It adopts SF6 gas insulating medium, and CT30 spring operation mechanism.

Execution standards:

• IEC62271-100 ? HV alternating current circuit break
• GB311-2002 ? usage rule of HV distribution and insulate apparatus
• GB/T16927-1997 ? HV testing technology
• GB1984-2003 ? HV alternate current circuit breaker
• GB3309-1989 ? HV switchgear mechanical testing under normal temperature
• GB4473-1996 ? HV alternate current circuit breaker compound testing
• GB5582-1993 ? HV electric apparatus outer insulating with pollution grade
• GB11022-1999 ? common technical requirements of HV switchgear and control apparatus
• GB11023-1989 ? HV switchgear SF6 air-proof testing guide
• GB/T8905-1996 ? electrical management and checking guide of SF6 electric apparatus
• GB12022-1989 ? industrial using SF6
• GB/T13384-1992 ? general technical condition of electrical product packing
• GB191-2000 ? packaging and transportation mark