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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


Gas Insulated Switchgears (GIS)


Ring Main Units


Distribution Transformers


Busway System


Solar Power System

12kV AMS with 12kV VEP VCB

Picture

Switchgear model

Unit

12kV AMS

Conformance

 

IEC 62271-200

Rated voltage

kV

7.2/12/15/17.5

Rated frequency

Hz

50/60

Rated insulation level

 

 

- Power frequency withstand voltage/min

kV/1 min

42

- Lightning impulse withstand voltage (peak)

kV, 1.2/50µs

75/95

Rated normal current of Busbar

A

630/1250/1600/2000
2500/3150/4000

Rated short time withstand current

kA/3s

20/25/31.5/40/50

Rated peak withstand current

kA

50/63/80/125/130

Standard degree of protection

 

 

- Enclosure

 

4X

- Compartment

 

2X

Dimension

 

 

- Width

mm

650, 800, 1000

- Depth

mm

1400

- Height

mm

2250

 

 

 

Circuit Breaker Model

Unit

12kV VEP

Conformance

 

IEC 62271-100

Rated voltage

kV

7.2/12/15/17.5

Rated current

A

630/1250/1600/2000
2500/3150/4000

Rated frequency

Hz

50/60

Rated insulation level

 

 

- Power frequency withstand voltage/min

kV/1 min

42

- Lightning impulse withstand voltage (peak)

kV, 1.2/50µs

75/95

Rated short circuit breaking current

kA, rms

20/25/31.5/40/50

Rated short circuit withstand current

kA/3s

20/25/31.5/40/50

Rated short circuit making current (peak)

kA

50/63/80/125/130

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

25-75

Rated opening time

ms

25-35

Rated breaking time

ms

40-50

Standard trip/close supply

Vdc

110/220 (110/220Vac)

Standard motor charging supply

Vdc (Vac)

110/220 (110/220Vac)

 

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