power generator
power generator
(OP)
hi
1- i having load 500kw working at 400volt
and have motor 360kw working 6600 by using step-up transformer
2- how choose power step-up transformer?
3-at starting motor 360kw how many time need to stability for generator i mean at starting voltage generator is reducing the governor and AVR will work to rising voltage the voltage generator at starting is reducing after that rising after that return to rated value equation here i need know max. time from reducing voltage at starting until return to rated value
1- i having load 500kw working at 400volt
and have motor 360kw working 6600 by using step-up transformer
2- how choose power step-up transformer?
3-at starting motor 360kw how many time need to stability for generator i mean at starting voltage generator is reducing the governor and AVR will work to rising voltage the voltage generator at starting is reducing after that rising after that return to rated value equation here i need know max. time from reducing voltage at starting until return to rated value






RE: power generator
What is your generator rating? Check with the capability curves if it can give the start up current.
G.F.
www.engineering-services.gr
RE: power generator
the generator rated 1250kw
i need konw too max time to need generator to stability at starting motor
RE: power generator
From my experience, a 1,2MW four stroke diesel generator running in lets say 10% load can start without any problems or significant voltage dips a 350kW motor. Depending on the machine, I will expect maximum a 10% voltage dip for less than one second.
Last month we make a similar test with a CUMINS 1110kVA in 50Hz/400V, equipped with a STAMFORD alternator where we start up a 430kVA load (PF ~1). The little monster took the load while we didn't notice any difference in voltage or even the sound of the machine.
G.F.
www.engineering-services.gr
RE: power generator
G.F.
www.engineering-services.gr
RE: power generator