Air Insulated Switchgears (AIS)

Floor Mounted Withdrawable type
          Single/Double Busbar
                    12A20 / 25
                    10D
                    24A25
                    36A25
Cassette type
          Single Busbar
                    12kV AMS
                    24kV AMS
                    40.5kV AMS

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Gas Insulated Switchgears (GIS)

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Ring Main Units

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Distribution Transformers

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Busway System

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Solar Power System

12A20 / 25 with VFT-12 VCB

Switchgear model	Unit	12A20	12A25
Conformance		IEC 60298, IEC 60694, IEC 62271-200
Rated voltage	kV	12
Rated frequency	Hz	50
Rated insulation level
- Power frequency withstand voltage/min	kV/1 min	28/32
- Lightning impulse withstand voltage (peak)	kV, 1.2/50µs	75/85
Rated normal current of Busbar	A	800/1250/2000
Rated short time withstand current	kA/3s	20	25
Rated peak withstand current	kA	50	63
Standard degree of protection
- Enclosure		4X
- Compartment		3X
Dimension
- Width	mm	600, 800 (2000A)
- Depth	mm	2200, 2250 (with PT)
- Height	mm	2300
Circuit Breaker Model	Unit	VFT-12
Conformance		IEC 62271-100
Rated voltage	kV	12
Rated current	A	630/1250/2000
Rated frequency	Hz	50
Rated insulation level
- Power frequency withstand voltage/min	kV/1 min	28/32
- Lightning impulse withstand voltage (peak)	kV, 1.2/50µs	75/85
Rated short circuit breaking current	kA, rms	20/25
Rated short circuit withstand current	kA/3s	20/25
Rated short circuit making current (peak)	kA	50/63
Electrical endurance		274 (Class E2)
Mechanical endurance		10,000 (Class M2)
Rated operating sequency/duty		O-0.3s-CO-3min-CO
Rated closing time	ms	<60
Rated opening time	ms	<50
Rated breaking time	ms	<60
Standard trip/close supply	Vdc	30/110
Standard motor charging supply	Vdc (Vac)	30/110 (240Vac)