AVR V/Hz
AVR V/Hz
(OP)
Dear all,
could anybody will expalin me wt is the significance of V/Hz
term in the AVR. and how it works.
thanks in advance
could anybody will expalin me wt is the significance of V/Hz
term in the AVR. and how it works.
thanks in advance






RE: AVR V/Hz
The V/Hz loop controls the generator terminal voltage at all times so that the V/Hz remains within limits preventing overfluxing (which is proportional to V/Hz)of generator / generator connected transformer core.
Hope the above is helpful.
RE: AVR V/Hz
When the diesel engine speed reduces due to the large starting current of the starting motor, the generator voltage reduces due to the V/Hz. Reduced Voltage causes also reduction on the active power of the system. This is very helpful for the diesel engine to prevent stopping due to low speed and recover its speed back. So we can say that V/Hz is very helpful to improve the load acceptance of the diesel generator.
Usually V/Hz is adjustable on the generator AVR. You may adjust the settings according to your system requirements.
RE: AVR V/Hz