Dry transformer problem
Dry transformer problem
(OP)
Folks
We suspect some problem with our dry transformer 6.9 KV to 480 Volts step down.
We did phase to ground megger testing and didn't find any problem. What other test do you suggest to conform the transformer is working fine? We are going to recommend an impedance check of the primary delta winding to see if it is balanced.
Anything else?
We suspect some problem with our dry transformer 6.9 KV to 480 Volts step down.
We did phase to ground megger testing and didn't find any problem. What other test do you suggest to conform the transformer is working fine? We are going to recommend an impedance check of the primary delta winding to see if it is balanced.
Anything else?






RE: Dry transformer problem
Gunnar Englund
www.gke.org
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100 % recycled posting: Electrons, ideas, finger-tips have been used over and over again...
RE: Dry transformer problem
RE: Dry transformer problem
You should also do a TTR and check the bolted connections.
What type of problems are you seeing?