Medium voltage Transformer inspection and cleaning

[Pullnwire]

I have a new client, Who is a university here in So. Cal, And they have asked me to provide a quote to do PMs on 5 large transformers, 2 300KVA 480-208/120 and 3 12KV- 480/277 transformers. THey are 1000KVA down to 500KVA.
My question is, Can I perform a Visual inspection, thourough cleaning, and look for hotspots without any special training / certs? Everything will be de energized, and I could do 480 in my sleep, But, I am not that familiar with the 12kv stuff. Is there anything I should, should not do? Should I just let this one go?
THanks for any input.

 

[brian john]

You can do anything you like, but in my opinion you will be short changing your customer, hire a testing firm, mark up their price, happy you, happy customer?

Oil filled or dry?
Do they (the University) have specs for maintenance and servicing?

 

[zog]

I have a new client, Who is a university here in So. Cal, And they have asked me to provide a quote to do PMs on 5 large transformers, 2 300KVA 480-208/120 and 3 12KV- 480/277 transformers. THey are 1000KVA down to 500KVA.
My question is, Can I perform a Visual inspection, thourough cleaning, and look for hotspots without any special training / certs? Everything will be de energized, and I could do 480 in my sleep, But, I am not that familiar with the 12kv stuff. Is there anything I should, should not do? Should I just let this one go?
THanks for any input.

Not something to do with out training, plus I have to assume you do not own a TTR test set, a winding resistance test set, or a power factor test set. Hire a testing company, this is all they do.

 

[Fulthrotl]

I have a new client, Who is a university here in So. Cal, And they have asked me to provide a quote to do PMs on 5 large transformers, 2 300KVA 480-208/120 and 3 12KV- 480/277 transformers. THey are 1000KVA down to 500KVA.
My question is, Can I perform a Visual inspection, thourough cleaning, and look for hotspots without any special training / certs? Everything will be de energized, and I could do 480 in my sleep, But, I am not that familiar with the 12kv stuff. Is there anything I should, should not do? Should I just let this one go?
THanks for any input.

not at all. don't pass on it.

in this area, electro test had been around since the late 70's... i worked with
the prinicpals when they first started out.... emerson bought them, so i
don't know anyone currently there, but they are in santa fe springs, on
bloomfield.

PM me if ya have any questions....