500kVA Trasformer Maintenance
500kVA Trasformer Maintenance
(OP)
We have a 500 kVA 23kV/380V transformer at our plant
We don't do any maintenance to it at all
Can anyone guide me about what is the usual maintenance that has to be done to this type of transformer?
We don't do any maintenance to it at all
Can anyone guide me about what is the usual maintenance that has to be done to this type of transformer?






RE: 500kVA Trasformer Maintenance
In my case, I have many pad-mount types in the 15kV-480 range. Basically we open up the connection compartments annually to inspect for visible problems, and that's it. On a three-year basis we gon into the connection compartments, do a thermographic scan for poor connections under load, then ed-energize the transformer and wipe everything down clean.
If you need to get a bit more active, draw oil samples for analysis annually.
old field guy
RE: 500kVA Trasformer Maintenance
RE: 500kVA Trasformer Maintenance
RE: 500kVA Trasformer Maintenance
Your transformer looks well cared for.
Keep it that way and it should last a long time.
Track the moisture content in your insulating fluid. If it starts to climb, remediation (dehydration) is a good idea.
old field guy
RE: 500kVA Trasformer Maintenance
RE: 500kVA Trasformer Maintenance
Infrared temperature check of bushing connections - check once in an year. Oil test including DGA may be done once in 3-5 years.
RE: 500kVA Trasformer Maintenance
I will do oil analysis every 3 years and terminals temperature check every 3 months (we have the equipment to do it)
thanks to all