How to Charge the Spare Single Phase Main Transformer

The question doesn't make sense yet. Transformers are, in the simplest of terms, coils of wire. They don't store charge; they convert AC power from one voltage to another. Please add more material to the question and re-post.

I concur with electricalexpert65. We have been doing this for years at the power plants where we have maintenance contracts.

GA to you sir!

Dear Mr. KJK/USA,

This matter does not relate to this thread. Since I saw your name here and I did not have your mail Id., I did not know your mail to contact you.

The matter is that about 3 or 4 weeks you responded to my problem of restoring the CR4 DATA BASE, in CR4, and I could not retrieve, as suggested by you and I do not know at what step I made mistake.

Pl. suggest me how to retrieve the Data Base of my original link in CR4.

How to contact the MODERATOR, I searched different options nothing could succeed.

Please reply to me at sd610@rediffmail.com.

dhayanandhan

Dear Guest,

your question is the least informative as Mr.Slack has pointed out.Please

clarify the following points :

(1) Moisture will not enter if the unit is filled with Ins.Oil , silica gel is good,and no

leakage thro' the bushing ,if stored in a good ventilated area. It will be a good

practice to megger the transformer before putting it on service.

(2) If you still insist connect a low voltage AC power with proper tripping fecility

and short circuit the secondary, limiting the secondary current to the full load

current. Take extra precautions like- no one will change the AC input voltage

with out proper authorisation.

(3) I feel if your place is utilisation is rainy always , more humid ( sea shore), or any

leaky roof above you can be worried.