4. Equipment checks
4.1 Genset
4.1.1 Important information
CAUTION
Before starting the engine for the first time, the engine and generator must be ready to run. The engine and
generator vendors are responsible for this.
INFO
The guidelines here only apply to commissioning of the controller. Commissioning the engine and generator is not
described here.
4.2 Breaker
4.2.1 Checking the phase sequence
DANGER!
The phase sequence across the breaker MUST be checked and correct before the breaker is closed for the
first time. A phase sequence error is extremely dangerous and can result in personal injury or death, and
serious equipment damage.
Check the phase sequence for one controller at a time:
1. Requirements:
• The genset must be running.
2. There must be voltage on the busbar to check the phase sequence.
• If there is no voltage on the busbar, you can connect one generator to the black busbar. Check the phase sequence
across the breaker. If the voltage measurements are wired incorrectly, the controller will activate a phase sequence
error. If there is no phase sequence error, keep the generator connected to the busbar to check the phase sequence for
the other controllers.
3. Check that the phase sequence at the equipment (1) is the same as the phase sequence at the controller voltage
measurement points (2).
GPU 300 Commissioning guidelines 4189341033 UK
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