HGM8151 Genset Parallel Controller User Manual Page 15 of 66
7)
Generator is placed into its standby mode after its
“
a
fter stop” delay
.
4.5
MANUAL START/STOP OPERATION
1)
MANUAL START:
it is selected by pressing the
button; a LED besides the button will illuminate
to confirm the operation; then press
button to start the gen-set; can detect crank disconnect
condition and generator accelerates to high-speed running automatically. With high temperature,
low oil pressure, over speed and abnormal voltage during generator running, controller can protect
genset to stop quickly. Press
and
keys simultaneously to control breaker close or open.
(Please refer to No.3~8 of
Automatic Start Sequence
for detail procedures, only breaker
open/close ways are different).
2)
MANUAL STOP
: Press
can shuts down the running generators. (Please refer to No.2~7 of
Automatic Start Sequence
for detail procedures).
NOTE:
In “manual mode”, the proced
ures of ATS please refer to Switch Control Procedure of generator in this
manual.
4.6
SWITCH CONTROL PROCEDURES
4.6.1
MANUAL CONTROL PROCEDURES
When controller is in
Manual
mode, the switch control procedures will start through manual transfer
procedures. Users can control the loading transfer of ATS via pressing button to switch on or off.
Closing Operation:
During genset normal running, press
if generator voltage and frequency have
reached on-load requirements.
1)
In case of single unit running, generator closing relay outputs;
2)
In case of running in parallel:
a)
If bus has no voltage, then the controller will send a closing signal to other waiting parallel
gensets and generator close relay will activate, this prevents other sets in the system from
attempting to close their own breakers at the same time.
b)
If bus has voltage or other gensets are already closed, the controller will adjust speed and
voltage through GOV and AVR to synchronize the gensets to the bus; when synchronism
requirements has been achieved, breaker close signal will be initiated and the genset will be
paralleled to the bus. Once they are paralleled, the controller will control the generator to
gradually accelerate and share load with other paralleled gensets.
Opening operation:
Press
,
1)
In case of single unit running, the controller sends open breaker signal.
2)
During parallel operation, the controller will transfer load to other generators, and then send an
opening signal.
4.6.2
AUTO CONTROL PROCEDURES
When controller is in auto mode, the switch control procedure is automatic control procedure.
