66 ZX2 GAS-INSULATED MEDIUM VOLTAGE SWITCHGEAR
Switchgear with double busbar
• Please consult section 4. for procedures for
operating the devices. Also observe section 3.1.
• Close all low voltage compartment doors.
• Switch all circuit-breakers off.
• Switch all three position disconnects and
disconnects off.
Connecting the incoming feeder panels
• Switch the three position disconnect or the dis-
connect in the incoming feeder panel to the
“Disconnect ON” position.
• Switch the circuit-breaker in the incoming
feeder panel “ON”.
• The busbar is then at operating voltage.
Hazard warning
Before connecting further incoming
feeder panels, ensure that the phase
angle of the panels is identical
Connecting the outgoing feeder panels
• Switch the three position disconnect or the
disconnect (whichever conducts busbar
voltage) in the outgoing feeder panel to be
connected to the “Disconnect ON” position.
• Switch the circuit-breaker in the outgoing
feeder panel “ON”.
• The load is then switched on.
Switch the further loads on as described.
The switchgear is in operation.
Switchgear with single busbar
• Please consult section 4. for procedures for
operating the devices. Also observe section 3.1.
• Close all low voltage compartment doors.
• Switch all circuit-breakers off.
• Switch all three position disconnects off.
Connecting the incoming feeder panels
• Switch the three position disconnect in the
incoming feeder panel to the “Disconnect ON”
position.
• Switch the circuit-breaker in the incoming
feeder panel “ON”.
• The busbar is then at operating voltage.
Hazard warning
Before connecting further incoming
feeder panels, ensure that the phase
angle of the panels is identical
Connecting the outgoing feeder panels
• Switch the three position disconnect in the
outgoing feeder panel to be connected to the
“Disconnect ON” position.
• Switch the circuit-breaker in the outgoing
feeder panel “ON”.
• The load is then switched on.
Switch the further loads on as described.
The switchgear is in operation.
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