Jacking Oil Pump - Online Testing
Jacking Oil Pump - Online Testing
(OP)
Dear All,
We operate steam turbine 55MW in base load condition. Rotor weight is around 32000 kg. The jacking oil pump discharge is 130 psig and the line has PRV at 150 psig.
There is a question from our operation team, is it allowed to conduct online running testing of jacking oil pump?
Best Regards;
Rky
We operate steam turbine 55MW in base load condition. Rotor weight is around 32000 kg. The jacking oil pump discharge is 130 psig and the line has PRV at 150 psig.
There is a question from our operation team, is it allowed to conduct online running testing of jacking oil pump?
Best Regards;
Rky
RE: Jacking Oil Pump - Online Testing
At first glance, your discharge pressure and PRV setting are quite close. If the PRV is a simple Sp1ring type, undertolerance is -10% so you don't have a lot to play with there.
what exactly is a "jacking oil pump" and what does it do with your large turbine unit?
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: Jacking Oil Pump - Online Testing
I am sorry if it make a confuse to everybody, what I mean with Jacking Oil Pump is pump that supply oil for lifting up the turbine rotor. Usually use in the first start up or during turning gear (depend on the OEM Philosophy) or before unit shutdown in certain range of rpm of rotor.
This testing is requested to ensure the jacking oil pump is ready as required especially during unit shutdown.
Best Regards;
Bocajun
RE: Jacking Oil Pump - Online Testing
Be sure to continue testing of the pump during shutdown. Also, monitor turning (barring) gear motor amps when the turbine is on turning gear.
Best of luck!