Seal oil ingress into generator
Seal oil ingress into generator
(OP)
We have a huge problem in our 300 MW generator. The generator seal oil ingress in a huge amount into the generator. so almost all the rotor winding and lower part of stator submerged in seal oil. we have drain all the oil through the hydrogen drain system.
Is anybody ever heard a situation like this, what is the effect of oil on our generator and what should we do to clean this oil from the windings?
Is anybody ever heard a situation like this, what is the effect of oil on our generator and what should we do to clean this oil from the windings?





RE: Seal oil ingress into generator
Being Mechanical, this is when I would contact a specilest. either the OEM or some one like http://www.mdaturbines.com/repairs/generator-repai...
Good luck with your recovery
RE: Seal oil ingress into generator
I am amazed that you have lost enough oil from the L.O. system to fill the stator sufficiently to immerse the rotor - the volume involved must be many thousands of litres. Why did no one question where the oil was being lost?
RE: Seal oil ingress into generator
Actually The generator is in idle / stop condition when it happens.No one check the seal oil system until we found that our Main oil tank (for turbin lube oil) level had decreased for about 1 meter and we search all the systems and found all the hydrogen drain line of generator had been filled with oil.
RE: Seal oil ingress into generator
I don't know if can be done in place with rotor pulled. At a minimum, start pulling rotor while decide the next step.
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(2B)+(2B)' ?
RE: Seal oil ingress into generator
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(2B)+(2B)' ?