i got a flywheel, with dimensions:
diameter:1530 mm
weight: 1335 kg
and wide: 90 mm
the speed of rotation is 1000 rpm...
the question is does i need to balance the fly wheel?? could somebody explain me why?
ok, i got two hydro generators sets,the data are:
RPM: 1000
Turbine: Francis
horizontal
type of the bearings: zoellern
generator: INDAR
weight of the rotor: 2500 kg
this generator is a francis turbine with a horizontal generator with two slide bearings,(zoellern bearings), one on the non...
Hello, I got a problem on a propeller electrical motor, the name plates of the problem are the next:
-1000 HP
- Vertical motor, it´s posible to turn it by hand.
- 780 rpm 60 hz 440 V 1260 A full load.
- The propeller is a pitch control one, but when we start the motor is on the 0 position.
Now...
hello, here´s Jose from sunny Spain, and I got another question relative to the generation thing... I got one generator 1000 kw at full output power, and after ten hours more or less, the output start to decrease, and stay on 960 kw....
The customer tell me that in other power plants...
hi, I got a problem on a 6000 V, 1,5 MW generator, the RTD on phase U is broken and I´d no spare installed, I´m thinking on install a new one on the head of the winding... the winding is a wire winding....my question is if somebody knows what´s the diference on º C, of the RTD in the slot and...
again sorry for my english.... I have to do a commisioning work on a asyncronous motor of 2 Mw, 6000 V, 425 rpm... pump application, and I was worried about the times I can start it up, cause the manufaturer tell me that I can start it three times on a hour, but I think it have to be a time to...
Yesterday I was at my office and I see a strange specification from a customer of me, about a ABB asyncronous generator, squirrel cage, 600 kw 1512 rpm, the application is a wind farm... it´s concerned to the bearings, two ball bearings, but the strange thing is he said he wants in the drive end...
hello to all the eng tips people, here´s Jose from Spain looking for some help... and with the worst english of the net... I´m sorry.
Ok, the question is I got a double feed asyncronous generator from a wind farm, the power is 2,2 MW, and the guys I sent to dismount it, had disconnected the...
I got an roller bearing on a hydro vertical generator, that is lubricated with oil, and refregerated into a exchanger oil/air, the air used for refrigeration is taken from the plant... that means that in summer the heat inside of the plant is highest than 40º C.... we are thinking into the use...
I got an roller bearing on a hydro vertical generator, that is lubricated with oil, and refregerated into a exchanger oil/air, the air used for refrigeration is taken from the plant... that means that in summer the heat inside of the plant is highest than 40º C.... we are thinking into the use...
hi, everybody on my prefer forum... here´s Jose and today, a guy from a mill factory come to me to ask for change the bearings of a dc motor, it´s nameplate says:
`typ: 1GG5 402 5NJ40-6SU3-Z
Nº: 205611/1995
p: 650 KW
i´LL need the number of the bearings and some drawing if its possible.
thank...
I´m trying to define the foundation for a 2 MW syncronous generator, and I don´t know how to calculate the next things maybe someone of you could help me....
How can I calculate the short circuit torque and how to use it for the calculation of the foundation... this is a horizontal hydro unit...
hello, I got an 1300 KVA syncronous generator, and I want to work with it.. on the range of 0,95 capacitive and 0,95 inductive... but i need to know the capacitive curve ¿ pq curve? ... I wanna know if i could do it with simple method knowing the saturation curve, 0 volts to full volts on the...
hello everybody, I`m electric guy, learning something on bearings, I´d to install a PT100 into a old bearing, I wanna know what`s the distance from the antifriction layer to put the head of my PT100, and what could be the real temperature diference between my reading and the real one.
thanks in...
hello everybody, I`m electric guy, learning something on bearings, I´d to install a PT100 into a old bearing, I wanna know what`s the distance from the antifriction layer to put the head of my PT100, and what could be the real temperature diference between my reading and the real one.
thanks in...
first of all, hello and good year to everybody, then I´ll like to ask your help: The last week I was working on my office, when a customer ask me for the connection of a blake for a motor he gots in a electric winch. It´s a eurodrive motor with a electrical blake in its top, this blake is feed...
Two months ago a asincronous machine 1 MW come to my office and get the star cable burn, only this cable burns as a fuse...
Now is on the power plant a little hydro site, and I measure armonics and I find that theres is a high level of armonics thrird one, but I don´t know where they are...
Helloeverybody, I received yesterday an asincronous generator on my office, and It`s comes with the neutral cable burnst.
This generator is from an hydro unit, and the nameplate is 750 Kw, 1000 rpm, 380 V. This is the only problem, the cable that conects the star point with the terminal to...
Hello everybody, my last tread was very nice, and I need some info about kraemer excitation systems for dc generators, how they work? or some information links??
Thanks
