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Subject: High voltage (40MVA) transformer survey

Date: 06/27/00 at 4:05 PM
Posted by: Doyhle
E-mail: fngatta@nortech.ca
Message Posted:

Carrying out an exploratory study of high voltage transformer repair industry, find below some questions to which Id like to have answers. Please fill out this questionnaire and return it at the attention of Flavien Ngatta to fngatta@nortech.ca.

a. What are the principal operations carried out during a retrofit transfo activities (transformer reconditioning)?
Oil change
Rolling change
Reels change

b. How much time does high power transformer can undergo a retrofit during its cycle of life?

c. What is the average cost associate to retrofit transfo exercise?

d. During transformer reconditioning, do you use any temperature thermometer system?


e. If yes, which ones

f. In transformers industry, which are the principal activities of Retrofitting covered by a guarantee policy?

g. Could you enumerate the various steps of a Retrofit process?


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