HPM6 Power Management Controller User Manual
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not been achieved after the “Transient Fault Delay” has expired. It enters into “Normal Running”
status if the on-load requirement has been achieved during delay period;
f)
When the shaft genset is in normal running status, it will close and synchronize automatically after
pressing
key;
g)
It will judge whether the SG power can receive all the DG power when closing in load takeover mode.
If not, the controller will initiate an alarm and stop the closing operation. If it meets the
requirements, the DG will open and stop after all the loads are received by the SG (DG is effective in
auto mode); In the fixed power mode, the controller synchronously closes and operates at fixed
power and grid connection with DG;
h)
If there is trip or shutdown alarm occurs, then the system will trip or stop and the corresponding
alarm information will be displayed on the LCD.
Semi-auto Stop:
a)
Press
key in close status or input port of DG with load is effective, the system will dispatch
the DG starting (DG is effective in auto mode), judging whether DG power receives all the SG power,
if not, controller will initiate an alarm and stop operations, if it meets the requirements, SG soft
unloads and opens;
b)
After breaker opened or in breaker open status, press
key, system will enter into “Stop Output
Delay” while the stop relay will activate;
c)
After “Stop Output Delay” is over, system will enter into “Wait for Stop” delay. If genset voltage and
frequency signals disappear during the delay, controller will judge that the genset stops and in
standby state; otherwise, if genset voltage and frequency signals still can be detected after the
delay expired, controller will judge that the genset fails to stop;
d)
After genset fails to stop, if voltage and frequency signals are disappeared, controller will judge that
the genset stops completely and enters into standby state.
8.1.3
AUTO MODE
Auto mode is activated by pressing
key (or by auto mode switch).
The start/stop, opening/closing sequence of auto mode is the same as the semi-auto mode,
except for start/stop, opening/closing keys on the panel are inactive and can only be operated through
the input port in auto mode.
When DG is loaded, SG will start and close automatically when the input of SG is effective with load,
and DG will automatically unload and stop;
When SG is loaded, DG will start and close automaticlly when the input of DG is effective with load,
and SG will automaticlly unload and stop;
In fixed power mode, SG will automatically start and connect to the grid with DG when the input of
SG is effective with load;
In load sharing mode, SG will automatically start and connect to the grid with DG when the input of
SG is effective with load.
