Question about synchronous motor
Question about synchronous motor
(OP)
Hello everyone,
We have several 2 MV, 6KV synchronous motor which serves to drive the fan and we have occasionally technological delays which can last several days.
I have somewhat crazy ideaa that it then can be used like source of reactive power and then it should cover the consumption of reactive power in my big factory.
I think we should just separate the motor from the impeller and rotate it idling with controlled increased current excitation .
Does anyone have similar experiences or idea where it can go in a bad direction and make some sort of problem .
Thanks in advance
We have several 2 MV, 6KV synchronous motor which serves to drive the fan and we have occasionally technological delays which can last several days.
I have somewhat crazy ideaa that it then can be used like source of reactive power and then it should cover the consumption of reactive power in my big factory.
I think we should just separate the motor from the impeller and rotate it idling with controlled increased current excitation .
Does anyone have similar experiences or idea where it can go in a bad direction and make some sort of problem .
Thanks in advance





RE: Question about synchronous motor
RE: Question about synchronous motor
"You measure the size of the accomplishment by the obstacles you had to overcome to reach your goals" -- Booker T. Washington
RE: Question about synchronous motor
A.
RE: Question about synchronous motor
For the economic case to work out either the reactive penaties must be astronomical where you are, or you employ slaves so you don't need to offset the cost of labour against whatever you save on the utility bill.
RE: Question about synchronous motor
"You measure the size of the accomplishment by the obstacles you had to overcome to reach your goals" -- Booker T. Washington
RE: Question about synchronous motor
A.
RE: Question about synchronous motor
thanks for all responses
The idea is to this fan should be taken out of the service * when it is not required to work for days sometimes even weeks * and between motor and fan is coupling which can quickly be separated and to allow motor idling .
RE: Question about synchronous motor
Do you have any way to regulate the machine field based on a VAR measurement so that the motor automatically adjusts to changing reactive demand, or is the reactive demand fairly constant?
RE: Question about synchronous motor
Keith Cress
kcress - http://www.flaminsystems.com
RE: Question about synchronous motor
Demand charges on the other hand; I have seen tariffs even more stringent than you suggest. I have seen tariffs that persisted for a year after one short transgression.
The major part of those bills were typically about one half consumption and one half demand charges. If you had a demand transgression that pushed your demand to 3 times your normal demand, it would double your bill for that month and incur charges into the future.
Even if a plant went out of business, closed down and had the electric service disconnected, they would still be liable for demand charges for the next year.
Bill
--------------------
"Why not the best?"
Jimmy Carter
RE: Question about synchronous motor
Keith Cress
kcress - http://www.flaminsystems.com