We have 2 units of GE DG rated at 11KV 2.4MW operating as Island Mode when there is a power failure.
Both prime-movers are controlled by Woodward 2301 speed controller, its load sharing function disabled, speed setting/load controls signal biased from DSLC.
Each DG has a Woodward DSLC controller to perform automatic synchronization and load sharing.
Alternators are of LS, is modular AVR consists
of a digital trimmer/VAR/PF control module.
The system commissioned 20 years ago,.but noted no one ever attempt to operate the generators in parallel operation.
I have several attempts to perform automatic synchronizing unsucessfully, units always swing load from one to another upon closing incoming unit VCB and render to reversed power tripping in pretty short time, probably less than a m1/2 minute.
Operating in manual mode in Droop mode was stable and can easily manipulate active and reactive load.
Current practice in manual synchronizing and load sharing during monthly load test.
PT and CT polarity checked to be in good order.
Software of DSLC not available to view MW/Mvar in DSLC.
Company not willing to spend money engaging Woodward service personnel.
Seeking anyone's expertise advice to help in solving this problem.
Both prime-movers are controlled by Woodward 2301 speed controller, its load sharing function disabled, speed setting/load controls signal biased from DSLC.
Each DG has a Woodward DSLC controller to perform automatic synchronization and load sharing.
Alternators are of LS, is modular AVR consists
of a digital trimmer/VAR/PF control module.
The system commissioned 20 years ago,.but noted no one ever attempt to operate the generators in parallel operation.
I have several attempts to perform automatic synchronizing unsucessfully, units always swing load from one to another upon closing incoming unit VCB and render to reversed power tripping in pretty short time, probably less than a m1/2 minute.
Operating in manual mode in Droop mode was stable and can easily manipulate active and reactive load.
Current practice in manual synchronizing and load sharing during monthly load test.
PT and CT polarity checked to be in good order.
Software of DSLC not available to view MW/Mvar in DSLC.
Company not willing to spend money engaging Woodward service personnel.
Seeking anyone's expertise advice to help in solving this problem.