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10 COMMISSIONING
10.1
STEP 1: SINGLE UNIT DEBUGGING
1)
Check the parameter configurations of the controller;
2)
Check the genset wiring connections and MSC CAN wiring connection between the units. (e.g. if 3
generators are correctly connected, SYNC screen will display Module Number: 3);
3)
In manual mode, check whether engine and generator data are normal;
4)
In manual mode check whether switch open and close are normal;
5)
In manual mode, after closing the breaker check whether 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 whether generator voltage can be adjusted to the
rated voltage (e.g. set the rated voltage as 240V/220V);
7)
Activate manual start on-load, and check whether power factor, active power and reactive power
are normal; if negative value occurs, check generator voltage and current phase sequences, the
incoming line direction of current transformer, and secondary current dotted terminal of current
transformer;
8)
In manual mode do performance tests according to the national standards.
NOTE: Please refer to HGM9500 SYNCHRONIZATION PLAN LIST for more information on GOV and AVR settings.
10.2
STEP 2: MANUAL PARALLEL OPERATION OFF-LOAD
1)
Manually close parallel sets, and check whether the parallel synchronization is steady and whether
the close impulse current is too high or not;
2)
After the genset is connected in parallel off-load, check whether the current display has very big
loop current;
3)
After the genset is connected in parallel off-load, observe whether the active power, reactive power
outputs are "0"; if they are not 0, observe whether there is power oscillation; if they are 0, users can
properly modify the gain and stability values, or adjust the engine GOV or generator AVR gain and
stability potentiometer, in order to avoid active and reactive power oscillation and make output close to
0.
10.3
STEP 3: MANUAL PARALLEL OPERATION ON-LOAD
1)
After the gensets are connected in parallel manually, perform on-load test and check whether
active and reactive power are evenly distributed between all gensets;
2)
After the gensets are connected in parallel manually, perform ramp on-load test to see if there is
high overshoot or power oscillation during this period; if there is, regulate load ramp;
3)
After the gensets are connected in parallel manually on-load, perform ramp off-load test to see if
genset breaker opens after reaching minimum set value (%);
4)
After the gensets are connected in parallel manually, perform impact load test and damp load test
to check if there is power oscillation.
HGM9510N/HGM9530N Paralleled Genset Controller User Manual
Page 92 of 116
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