40.5kV AMS

Air Insulated Switchgears (AIS)

Switchgear model	Unit	40.5kV AMS
Conformance		IEC 62271-200
Rated voltage	kV	33/36/40.5
Rated frequency	Hz	50/60
Rated insulation level
- Power frequency withstand voltage/min	kV/1 min	95
- Lightning impulse withstand voltage (peak)	kV, 1.2/50µs	185
Rated normal current of Busbar	A	630/1250/1600/2000 2500/3150
Rated short time withstand current	kA/3s	25/31.5
Rated peak withstand current	kA	63/80
Standard degree of protection
- Enclosure		4X
- Compartment		2X
Dimension
- Width	mm	1200
- Depth	mm	2500
- Height	mm	2400

Circuit Breaker Model	Unit	40.5 VEP (VCB)	40.5kV FEP (SF6 Gas CB)
Conformance		IEC 62271-100	IEC 62271-100
Rated voltage	kV	33/36/40.5	40.5
Rated current	A	630/1250/1600/ 2000/2500/3150	630/1250/1600/ 2000/2500
Rated frequency	Hz	50/60	50/60
Rated insulation level
- Power frequency withstand voltage/min	kV/1 min	95	95
- Lightning impulse withstand voltage (peak)	kV, 1.2/50µs	185	185
Rated short circuit breaking current	kA, rms	25/31.5	25/31.5
Rated short circuit withstand current	kA/3s	25/31.5	25/31.5
Rated short circuit making current (peak)	kA	63/80	63/80
Electrical endurance		274 (Class E2)	274 (Class E2)
Mechanical endurance		10,000 (Class M2)	10,000 (Class M2)
Rated operating sequency/duty		O-0.3s-CO-3min-CO	O-0.3s-CO-3min-CO
Rated closing time	ms	55-80
Rated opening time	ms	25-40
Rated breaking time	ms	60
Standard trip/close supply	Vdc	110/220 (110/220Vac)	110/220 (110/220Vac)
Standard motor charging supply	Vdc (Vac)	110/220 (110/220Vac)	110/220 (110/220Vac)
Annual leakage	%	N/A	< 0.1%
SF6 rated pressure	MPa	N/A	0.35
SF6 alarm pressure	MPa	N/A	0.28