High Voltage Switchgear Factory

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To verify insulation, electrical strength, thermal stability, mechanical performance and operational reliability of HV switchgear in accordance with IEC / ANSI standards.

Test Object (Tested Object)	Test Items	European Standard (IEC)	American Standard (ANSI/IEEE)
High-voltage circuit breaker	Routine test (appearance, dimension, contact resistance, mechanical operation & timing, insulation resistance)	IEC 62271-100	ANSI C37.04
	Type test (temperature rise, short-time withstand current, peak withstand current, mechanical endurance)	IEC 62271-100	ANSI C37.04
	Dielectric test (power-frequency AC withstand voltage, induced overvoltage, lightning impulse withstand voltage)	IEC 62271-100	ANSI C37.06
Disconnecting switch / Earthing switch	Mechanical operation test, mechanical endurance test	IEC 62271-102	ANSI C37.30
	Dielectric withstand test (AC & impulse)	IEC 62271-102	ANSI C37.30
	Contact resistance measurement	IEC 62271-102	ANSI C37.30
Gas-insulated switchgear (GIS)	Gas tightness test (SF6 leakage measurement)	IEC 62271-203	ANSI C37.122
	Partial discharge test (PD test)	IEC 62271-203	IEEE C37.122
	Main circuit insulation test, auxiliary circuit insulation test	IEC 62271-203	ANSI C37.122
High-voltage instrument transformers (Current transformer / Voltage transformer)	Accuracy class test (ratio error, phase displacement)	IEC 61869	ANSI C57.13 (CT)ANSI C57.12 (VT)
	Insulation dielectric test (AC, lightning impulse)	IEC 61869-1	IEEE C57.13
	Temperature rise test	IEC 61869-1	ANSI C57.13
Air-insulated switchgear (AIS) / Switchgear assemblies	Temperature rise test	IEC 62271-1	ANSI C37.20.1
	Short-circuit withstand test (dynamic & thermal stability)	IEC 62271-1	ANSI C37.04
	Auxiliary and control circuits test	IEC 62271-1	ANSI C37.20.1
Vacuum interrupter	Vacuum degree check, withstand voltage test	IEC 62271-100 Annex	IEEE C37.09
Vacuum interrupter	Mechanical life test	IEC 62271-100	ANSI C37.06
Busbar assemblies & connection parts	Contact resistance test, temperature rise test	IEC 62271-1	ANSI C37.20.1
Busbar assemblies & connection parts	Dielectric withstand test	IEC 62271-1	ANSI C37.20.1
Control & protection panels	Insulation test of control circuits	IEC 62271-1	ANSI C37.20.1
Control & protection panels	Functional test of protection & interlock	IEC 62271-1	IEEE C37.20.2