AC15QTP And AC20QTP Operations Manual....
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6.1
POWER TURN-ON PROCEDURE, cont.
6.1.2 Systems Equipped With The Seamless Transfer Option, cont.
If the generator is supplying power to the ship, the SHIP’S POWER - GENERATOR LED
(12A)
is lit, and the GENERATOR metering display indicates approximately the same voltage as the
CONVERTER metering display, then proceed by pressing the SHIP’S POWER - CONVERTER
(9)
button. In dual generator installations, the converter will determine the appropriate transfer
generator and the transfer will proceed. The converter will match the generator in voltage,
frequency, and phase. When the two power forms are matched, the converter will place itself
momentarily in parallel with the generator, and then open the generator circuit breaker removing
the generator from the distribution grid. The entire process may take up to 5 seconds to
complete. The generator can now be secured from operation.
If the generator is off-line as indicated by the SHIP’S POWER - GENERATOR LED
(12A)
being off, the converter will immediately place itself on the ship’s distribution system, with no
synchronization period required, when the CONVERTER
(9)
button is pushed.
When attempting transfer from the converter to the generator and the generator is off, or if its
voltage is outside the allowed voltage or frequency limits, the transfer will be aborted.
When load has been transferred to the converter, monitor the converter load currents and
voltages. Ensure the load is within the system ratings as indicated by the STATUS display.
Monitor the shore power voltage and current levels with load applied to avoid tripping shore
power breakers. Refer to published rating curves for maximum current, kVA, and kW levels.
Additional loading information may be obtained on shore power and converter loading by
selecting the desired source button
(2, 4)
, then pressing F2, F3, and F4
(13)
. To return to the
default metering display, press F1
(13)
.
