Synchronizing Gensets

If you are using electronic governor, you should not set speed droop at all. The Inteligen will control the speed to within less that 1% tolerance...this is active load sharing. The Comap unit does this very well. It is important to set up the gain and stability of each governor before hand. It is not necessary to set no-load frequency to 51Hz or no-load voltage to 385.5V because the Comap device will control to the absolute setpoint.

Similarly, if you are using Var control, it is not necessary to set droop in the AVR either, the Comap unit will do this too.

Most importantly when using the Comap unit is to first select the correct software configuration. you select which software to install in the unit based on the equipment you are using. (If you choose to use internal or external voltage and speed control; if you are synchronising with the grid or if the generators will be isolated).

When using Comap device, make double sure load lines are correct polarity before trying to synchronise.

The Comap devices must be networked together using the Can bus. It's useful to connect IG-MU device and have a PC on hand with the control software installed. This will allow control and monitoring of the gensets from a single location.

The Inteligen device will warn you is the generators are connected out of phase, and will refuse to synchronise if this is the case.

Checking the load variance is essentially not necessary if you are using active KW/KVar control, however it is useful to know that each machine is capable of handling its full load independently. This will highlight any governor/AVR/Winding problems before you get started.

The Comap device will want you to supply all of the machine specs for each machine, and to work out the max current for an IDMT trip setting. you will need to set the sync window for voltage/frequency - sometimes it's easier to widen the window slightly if you experience difficulty in synchronising at first. Most of the time, if you experience instability when trying to synchronise, you will need to first prove that the governor is correctly adjusted, then correctly adjust the PID settings in Comap device. The sync controller uses PID for adjustment.

I have worked with the Inteligen in the past, and it's a very useful and user friendly device to install and configure. The manuals are well written.