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| 12kV - 24kV Metal Enclosed Switchgear |
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M.V. Metal Enclosed Switchgears are used for seconder
distribution systems up to 24kV, kiosk
type substations, industrial facilities or indoor area applications.
All necessary functional units are exist in the switchgear.
- Load break switch can only by closed when the door of the
cubicle is closed and earthing switch is opened.
- Earthing switch can only be closed when load break switch
is opened.
- Door of the cubicle can only be opened when earthing
switch is closed.
- Load break switch can not be closed when the door of the
cubilce is open.
- Disconnector and disconnectors (in the cupling cubicle)
can only be opened when the circuit breaker is in open position.
- Disconnector or circuit breaker can be locked when it is
in open position.
- Door of the cubicle can only be opened when circuit
breaker is locked in open position, disconnector is open and earthing switch is
not closed.
Rated Voltage: 12
kV - 24 kV
Rated power frequency withstand voltage (1 min): 28 kV - 50
kV
Rated power frequency withstand voltage (1 min) (at
isolating distance): 32 kV - 60 kV
Rated lightning impulse withstand voltage: 75 kV - 95
kV
Rated lightning impulse withstand voltage ( at across
anterrupter): 85 kV - 110 kV
Rated frequency: 50-60
Hz
Rated current: 630-1250
A
Rated peak withstand current: 50
kA
Rated short-time withstand current (1s): 31,5 kA
Earthing Switch: 12
kV - 24 kV
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