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Reference: 512

Type:
Technical Brochures
Title:

Final Report of the 2004 - 2007 International Enquiry on Reliability of High Voltage Equipment - Part 4: Instrument Transformers

 
Results from a world wide utility survey of failures and service experience with instrument transformers rated for 60 kV and above are presented. The surveyed service experience comprises 1 290 335 single phase instrument transformer years. Statistical information about 690 major and 2 489 minor failures - such as origin, cause and failed subcomponent - are provided. In addition, failure frequencies as a function of voltage level, technology, age, design and maintenance strategy are presented.
 

File Size: 2,8 MB

Pages NB: 193

Study Committee:  A3 ?

WG (TF): WG A3.06

Year: 2012

 
 
 
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