Power transformers need real tests to prove they can survive a short circuit

CEPSI papers 2016

KEMA Laboratories position paper

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Position paper

Power transformers need real tests to prove they can survive a short circuit

Short-circuit testing of power transformers position paper.pdf

Read about:

Short-cicuit testing of power transformers

Position paper

Power transformers need real tests to prove they can survive a short circuit

Read about:

Short-cicuit testing of power transformers

Short-circuit testing of power transformers position paper.pdf

Request a copy

Fill out the form below to receive a free copy by email

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Power transformers need real tests to prove they can survive a short circuit Power transformers are the most expensive pieces of equipment in power systems. Interruption of service of transformers needs to be avoided at all time, given the enormous consequences. International studies have indicated that the failure rate of transformers is around 0.6%. Deeper study reveals that a major portion of these failures (up to 20%) is directly related to short circuits. The verification of the ability of power transformers to survive short circuit is the subject of this paper. Two verification methods are practiced today. The first one is “design review”, in which third-party consultants check calculation results of forces and stresses and compare these with critical values based on tests or based on internal manufacturer’s rules. The second verification method is “short-circuit testing”, in which the complete transformer is subjected to real short-circuit current and thus to the same stresses as would occur in service. The highest degree of reliability with respect to short-circuit withstand verification is through full-scale short-circuit testing in accordance with the international standards.

Position paper

Power transformers need real tests to prove they can survive a short circuit

Short-circuit testing of power transformers position paper.pdf

Read about:

Short-cicuit testing of power transformers