3.2 Start generator
Before
After
Load
G
Load
G
Mode
: Turning the function selector to
Start generator
does not change the mode in the controller(s).
Start the genset(s)* by turning the function selector to
Start generator
. The controller starts all the gensets.
INFO
Use the function selector to start the genset(s), and not the display unit genset start button.
Check the AC wiring
WARNING
Wiring errors can lead to loss of life.
Check the phase sequence
The phase sequence (rotation) must be checked, especially when connecting equipment to a new voltage source. To facilitate this
check, a DEIF phase sequence relay, RMT-111Q96, can be installed in the switchboard.
NOTE
When all three phases are used to measure the voltage, the AGC automatically runs a phase sequence check. When
measurement only uses one phase and neutral, the AGC cannot do a phase sequence check.
Check the phase wiring
Check that the phases are wired correctly. For example, if L1 is connected to L2, L2 to L3, and L3 to L1, the phase sequence will be
correct, but the synchronisation will be wrong.
To check the phase wiring, you can use static synchronisation with the genset controller in
Semi
mode. That is, using static sync
creates a stable synchronisation across the generator breaker (GB). You can use a multimeter to measure the voltage across the
GB (that is, L1-L1, L2-L2, and L3-L3). The voltage between L1 and L1 should be 0 V.
OPERATOR'S MANUAL 4189340730C UK
Page 8 of 15
