HGM9510 GENSET PARALLEL UNIT
HGM9510 Genset Parallel Unit ISSUE 2013-08-06 Version 1.1 Page 49 of 65
11 COMMISSIONING
11.1 STEP 1. SINGLE UNIT DEBUGGING
1) Check the parameter configuration of the controller;
2) Check the gen-set connections and MSC CAN connection lines between the units. (E.g. if 3
generators are correctly connected, SYNC screen will display Module Number: 3).
3) In manual mode, check if engine and generator data is normal;
4) In manual mode check if switch opens and closes normally;
5) In manual mode, after closing the breaker check if generator frequency can be adjusted to the
rated frequency (e.g. set the rated frequency as 52Hz/48Hz);
6) In manual mode, after closing the breaker check if generator voltage can be adjusted to the
rated voltage (e.g. set the rated voltage as 240V/220V);
7) Activate manual start on-load, check if power factor, active power and reactive power are
normal; if negative value occurs, check generator voltage and current phase sequence,
current transformer incoming line direction, current transformer secondary current dotted
terminal;
8) In manual mode do performance tests according to the national standards.
Note: Please refer to HGM6500 Synchronization Plan List for more information on GOV
and AVR settings.
11.2 STEP 2: MANUAL PARALLEL OPERATION OFF-LOAD
1) Manually close parallel sets, check that the units synchronization is balanced and breaker
close impulse current is not too high;
2) During parallel operation off load, check that there is no high circumfluence on HGM9510
current screen;
3) During parallel operation off load, check if the output of active and reactive power is equal to
zero; if it is not, then check if there is power oscillation; if there is, adjust the gain and stability
values of HGM9510 controller, or adjust engine GOV or generator AVR gain and stability
potentiometer to avoid active and reactive power oscillation; output close to 0.
11.3 STEP 3: MANUAL PARALLEL OPERATION ON-LOAD
1) During manual parallel, perform on-load test and check if active and reactive power is evenly
distributed between all the gensets;
2) During manual parallel, perform ramp on-load test to see if there is high overshoot or power
oscillation during this period; if there is, regulate Load Ramp via PC software;
3) During manual parallel, perform ramp off-load test to see if gen-set breaker opens after
reaching minimum set value (%);
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