Kataeb
Member
is reverse current really harmful to generators? i did some research on the subject, but it is not clear if this is a real danger to have ac current flowing back to a diesel generator. appreciate your ideas. thank you
is reverse current really harmful to generators? i did some research on the subject, but it is not clear if this is a real danger to have ac current flowing back to a diesel generator. appreciate your ideas. thank you
I can sync a pelton turbine and then close off the water and have the synchronous generator act as a motor and rotate the turbine and while the generator is motoring it makes no difference it could do it for ever and be fine.
I'm told many large hydro electric units will operate in this way instead of stopping and starting them they are put on 'sync condense' where they just motor with the excitation on.
For a diesel prime mover it probably depends on the engine. what happens when you let off the throttle in a vehicle and have the inertia of the vehicle drive the engine? Nothing bad, but it is designed for it. If the diesel engine for the generator is still putting fuel in the engine when it is being motored that is probably not good.
Consult your manufacturer.
so the main problem is that mechanical parts could be damaged...
if only one, of the three phases, has reverse power, feeding back current to the generator, will it cause any problems also? thank you
we have a solar pv supply, connected to a diesel generator grid, supplying a building. each apartment is supplied by one phase plus neutral.
if at the load side, one of the phases got switched off, then will have the solar pv feeding current on one phase, back to the generator.
thank you