<abstract xmlns="http://www.w3.org/1999/xhtml"><p>There is a wide range of criteria and features for evaluating reliability in engineering; but as many as there are, only one of them has been chosen to evaluate reliability of Digital Protective Relays (DPR) in the technical documentation: Mean (operating) Time Between Failures (MTBF), which has gained universal currency and has been specified in technical manuals, information sheets, tender documentation as the key indicator of DPR reliability. But is the choice of this criterion indeed wise? The answer to this question is being sought by the author of this article.</p></abstract>

There is a wide range of criteria and features for evaluating reliability in engineering; but as many as there are, only one of them has been chosen to evaluate reliability of Digital Protective Relays (DPR) in the technical documentation: Mean (operating) Time Between Failures (MTBF), which has gained universal currency and has been specified in technical manuals, information sheets, tender documentation as the key indicator of DPR reliability. But is the choice of this criterion indeed wise? The answer to this question is being sought by the author of this article.

A new criterion needed to evaluate reliability of digital protective relays

Central Electric Laboratory, Israel Electric Corp., PCB 10, Haifa 31000, Israel

Journal of Electrical Engineering

{"article-title":"A new criterion needed to evaluate reliability of digital protective relays"}

There is a wide range of criteria and features for evaluating reliability in engineering; but as many as there are, only one of them has been chosen to...

A new criterion needed to evaluate reliability of digital protective relays

Published Online: Nov 20, 2012

Page range: 336 - 340

DOI: https://doi.org/10.2478/v10187-012-0050-6

Keywords
digital protective relays, reliability, mean time between failures, MTBF, gamma-percentage operating time to failure

This content is open access.

A new criterion needed to evaluate reliability of digital protective relays

Published Online: Nov 20, 2012

Page range: 336 - 340

DOI: https://doi.org/10.2478/v10187-012-0050-6

Keywordsdigital protective relays, reliability, mean time between failures, MTBF, gamma-percentage operating time to failure

This content is open access.

Keywords
digital protective relays, reliability, mean time between failures, MTBF, gamma-percentage operating time to failure