AC15QTP And AC20QTP Operations Manual....
27
6.1
POWER TURN-ON PROCEDURE, cont.
Press the CONVERTER POWER
(4)
button and the screen will now change. As with the shore
power displays, the F1-F4
(13)
buttons will cycle through a variety of converter power data.
Output voltages and currents should indicate zero.
To turn on the converter, press the SHORE POWER ON
(7)
button. The converter will begin a
soft-start procedure which requires approximately 2 seconds to complete. At the conclusion of
this process, the indicator LEDs
(10A & 7A)
in the SHORE POWER control area of the display
should change from red to green. View the display information for CONVERTER POWER
(4)
and verify that the displayed voltage is at the desired potential, frequency, and form. The system
is now in the Standby State.
NOTE:
It is normal under no load conditions for the currents to indicate 3-6 Amps flowing. This
level of current is due to the internal filters and will not reduce the converter’s power rating.
6.1.1 Systems Not Equipped With The Seamless Transfer Option
When ready to transfer the ship’s load to the converter, press the CONVERTER POWER - ON
(8)
button on the control panel. This will place voltage at the output terminals of the converter.
The green ON indicator LED
(8A)
should now be lit. The ship’s load may be transferred to the
converter at this time if additional, external switchgear is involved. The transfer must be
performed in a “
break-before-make
” method to prevent damage to the converter or generator(s).
The converter and generator(s) may not be operated in parallel at any time.
CONVERTER OUTPUT#1 OUTPUT#2 60.0Hz
VOLTAGE: 120 V 120 V
CURRENT: 0 A 0 A
LOAD: 0.0kVA 0.0kVA
