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Installation and start-up of KEOR HPE UPS 400-500 kVA
Installation et démarrage de l'ASI KEOR HPE 400-500 kVA
Installazione e avviamento KEOR HPE UPS 400-500 kVA
5.4
SWITCHING PROCEDURE TO MANUAL BYPASS
The load is transferred to Manual Bypass with no interruption of supply to the loads. In this
configuration, the system can be restarted via the return procedure from load on manual bypass,
without the need to de-energize the loads.
Manual bypass
To perform the switching procedure correctly, make sure no alarms are present on
the system.
During Manual Bypass the load is supplied directly by the input mains, therefore
continuous supply cannot be guaranteed to the loads.
1)
Move the Bypass_SW selector to the BYPASS position.
2)
Close the switch MBCB.
3)
Open the switch OCB.
4)
Open the switch BCB.
5)
Open the switch RCB.
6)
Open the switch SBCB.
5.5
RESTART FROM MANUAL BYPASS
Before restarting the UPS from manual by-pass, make sure the "Bypass_Sw" selector is in BYPASS
position and the MBCB isolator is closed.
1)
Close the rectifier input switch RCB. After some seconds the touch screen will start and will
show the UPS mimic diagram.
Picture 17 – Start-up from manual bypass
OMT87115 REV. B
45
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