Manual ParallelingUsing DEIF AGC-3

1.Before any attempt to start and parallel the generators, check that all generator paralleling circuit breaker are all in OFF position. Generator controller auto mode must be switch on.

2.Press MODE push button (SELECT SEMI-AUTO MODE) located on the front face of DEIF controller (G1&G2) and then press START button the generator will start and ramp to rated voltage and frequency.

Mode Button

Start Button

3.Check if run and generator voltage LED illuminates , it means the generator is protected and ready.

4.Select the generator (G1 or G2) to be online first, then press CB CLOSE/OPEN button on the DEIF controller. The controller will automatically detects if it is a paralleling mode or a single mode.

CB Close/Open

Button

Run LED

5.To synchronize the second generator, press CB CLOSE/OPEN button on DEIF controller , the digital

synchroscope will automatically display during synchronization time and then it will disappear after generator breaker closed. Available loads on the bus will automatically load share to the units online. Typically the load share percentage factor is 50 %.

NOTE: When the available loads on the bus is less than the capacity of one generator or one generator is enough to supply all available loads, this is the time to OFFLINE one generator from the system.

CB Close/Open

Button

6.To OFFLINE the generator from the system, select the generator what you want and make sure that the load taken by outgoing generator will not exceed the reserve capacity of generator online, then press CB CLOSE /OPEN button on DEIF controller. Once the CB CLOSE/OPEN button is press the DEIF will automatically unload the generator before issuing the breaker opening command.

CB Close/Open

Button

7.To stop the generator press STOP button on DEIF controller to perform engine cooling down. When the preset cool down timer elapse the engine will automatically shutdown.

Stop Button