Transformers Magazine, Vol. 12 No. 2, 2025.
Original scientific paper
General guidelines for safekeeping of high voltage transformers - Part IV
K. K. Murty
J. J. L. Kapil
Santosh Dubey
S. K. Chaturvedi
Abstract
Transformers such as HV/EHV (132kV and above) are the most vital and costly equipment in power systems and large Industries. It is the prime duty of HV/EHV substation managers, asset managers, and substation Operation & Maintenance (O&M) engineers to look after transformers, beginning from receipt on-site through their lifecycle scrupulously with motherly feelings. Generally, OEM (Original Equipment Manufacturer) guidelines must be followed. This article is a significant and important contribution of experienced engineers in O&M and testing and commissioning up to 400 kV in HV/EHV substations. The authors deliberate all the aspects from receiving the consignment of an EHV Transformer on-site through its lifecycle, including O&M and life expectancy enhancement. This article serves as a guideline for substation managers, asset managers, and substation engineers in the absence of any guidelines issued by their utilities or in the industry
Keywords
N2 (nitrogen gas); SFRA (Sweep Frequency Response Analysis); FAT (Factory Acceptance Test); TCIV (Transformer Conservator Isolation Valve); OEM (Original Equipment Manufacturer); DGA (Dissolved Gas Analysis); FDS (Frequency Domain Spectroscopy); furan analysis
Hrčak ID:
330334
URI
Publication date:
7.4.2025.
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