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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 HGM9500 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 unit 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 (%);
4)
During manual parallel, perform impact load test and damp load test to check if there is power oscillation.
11.4 STEP 4: AUTOMATIC PARALLEL OPERATION
When the controller is in auto status, if digital input "remote start on-load (on demand)" is active, it will carry
out automatic parallel, start and stop operation. There are 3 ways of automatic parallel operation:
1)
Start on demand: the module with the highest priority starts firstly. When load exceeds the pre-set start
maximum percentage, the second according to the priority module will start the gen-set, synchronize and
HGM9510 Genset Parallel Controller User Manual
Page 51 of 68
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