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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

40.5kV AMS with 40.5kV VEP VCB or 40.5kV FEP GCB

Picture

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

 

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