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10 COMMISSIONING
10.1 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 HGM9500 Parallel Plan List for more information on GOV and AVR settings.
10.2
STEP 2: MANUAL PARALLEL OPERATION OFF-LOAD
1)
Manually close parallel sets, check whether the units parallel synchronization is balanced or not
and switching impulse current is too high or not;
2)
During parallel operation off load, check that if there is with high circumfluence;
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
HGM8151 controller, or adjust engine GOV or generator AVR gain and stability potentiometer to
avoid active and reactive power oscillation; output close to 0.
10.3
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 (%);
4)
During manual parallel, perform impact load test and damp load test to check if there is power
oscillation.
HGM8151 Genset Parallel Controller User Manual
Page 46 of 66
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