GE Digital Energy LP 33 - Start-Up Following the Operation on Maintenance Bypass

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OPM_LPS_33E_10K_30K_4CN_V010.doc 67/82 Operating Manual LP 33 / 10-20-30 kVA
8.2.3 Start-up following the operation on maintenance bypass
This procedure presupposes that the load is powered by the manual bypass switch:
• The inverter is switched OFF;
• The manual bypass switch Q2 is switched ON (Pos. I);
• The output switch Q1 is switched OFF (Pos. 0);
• The input fuses rectifier F1, F2, F3 and battery fuses F9, F10, F11 are removed.
1. Insert the rectifier input fuses F1, F2, F3 and the battery fuses F9, F10, F11 (and
eventual external battery fuses) on each unit.
2. Switch ON the output switch Q1 (Pos. I) on each unit.
LAMP TEST
> RESET TOTAL OFF ٭
3. Only in case it has been previously activated (* present
beside the text RESET TOTAL OFF), restore the command
total off on each unit by entering the screen:
MENU/RESET TOTAL OFF
Udc Voltage
Udcp=400V Udcn=400V
4. Open the maintenance bypass switch Q2 (Pos. 0) on
each unit.
Verify, selecting the screen METERING/Udcp and Udcn,
that the booster voltage has reached about 400 VDC on
each unit.
> INVERTER ON ٭
INVERTER OFF
5. Switch ON the inverter on each unit entering the
screen:
MENU/ COMMAND MENU /INVERTER ON
LP 33 20kVA P1
APPLICATION ON UPS
The load will be automatically transferred from mains to the
inverters as the needed power requested from the applied
load is achieved on inverter side.
The main screen of each unit will display:
APPLICATION ON UPS