Matches in SemOpenAlex for { <https://semopenalex.org/work/W2007136511> ?p ?o ?g. }
Showing items 1 to 78 of
78
with 100 items per page.
- W2007136511 abstract "Until the invention of the transistor in 1948, power system control and protective relays were almost exclusively electro-mechanical. There were a few special applications, such as automatic synchronizing of ac generators, that used vacuum tubes - but these were clearly the exceptions. The physical structures of these electro-mechanical relays were robust, with current and potential coils designed to pass one minute power frequency production tests at 2000 volts. In addition, they were required to pass design (type) impulse tests at 5 kV. Insulation failures were rare. The most common failure modes in the field were dirty contacts, worn or dirty bearings (on induction cup or induction disc relays), or incorrect settings. Routine preventive maintenance was scheduled to address these problems. A few years after the invention of the transistor in 1948, some transistors designs became available that could withstand the typical extreme temperatures in electric utility substations. Their capability as solid state amplifiers was very attractive to the designers of protective relays, as the search was always on for more sensitive and faster, yet secure, products for transmission line relaying. These products -“solid state relays” (or sometimes called “static terminals”) - were often applied for EHV (345, 500 and 765 kV) transmission line protection to reduce fault clearing times. Relays for other functions such as transformer differential protection and automatic synchronizing also used transistors." @default.
- W2007136511 created "2016-06-24" @default.
- W2007136511 creator A5047976961 @default.
- W2007136511 date "2010-01-01" @default.
- W2007136511 modified "2023-09-25" @default.
- W2007136511 title "History - events leading to the development of IEEE Std1613<sup>™</sup>-2003 and its predecessor standards (IEEE Std C37.90, IEEE Std C37.90.1, IEEE Std C37.90.2, and IEEE Std C37.90.3)" @default.
- W2007136511 cites W2050812861 @default.
- W2007136511 cites W2079213426 @default.
- W2007136511 doi "https://doi.org/10.1109/tdc.2010.5484696" @default.
- W2007136511 hasPublicationYear "2010" @default.
- W2007136511 type Work @default.
- W2007136511 sameAs 2007136511 @default.
- W2007136511 citedByCount "1" @default.
- W2007136511 crossrefType "proceedings-article" @default.
- W2007136511 hasAuthorship W2007136511A5047976961 @default.
- W2007136511 hasConcept C119599485 @default.
- W2007136511 hasConcept C121332964 @default.
- W2007136511 hasConcept C127413603 @default.
- W2007136511 hasConcept C140311924 @default.
- W2007136511 hasConcept C162932704 @default.
- W2007136511 hasConcept C163258240 @default.
- W2007136511 hasConcept C165801399 @default.
- W2007136511 hasConcept C172385210 @default.
- W2007136511 hasConcept C183912175 @default.
- W2007136511 hasConcept C194257627 @default.
- W2007136511 hasConcept C2412688 @default.
- W2007136511 hasConcept C24326235 @default.
- W2007136511 hasConcept C41008148 @default.
- W2007136511 hasConcept C46362747 @default.
- W2007136511 hasConcept C62520636 @default.
- W2007136511 hasConcept C66322947 @default.
- W2007136511 hasConcept C761482 @default.
- W2007136511 hasConcept C89227174 @default.
- W2007136511 hasConceptScore W2007136511C119599485 @default.
- W2007136511 hasConceptScore W2007136511C121332964 @default.
- W2007136511 hasConceptScore W2007136511C127413603 @default.
- W2007136511 hasConceptScore W2007136511C140311924 @default.
- W2007136511 hasConceptScore W2007136511C162932704 @default.
- W2007136511 hasConceptScore W2007136511C163258240 @default.
- W2007136511 hasConceptScore W2007136511C165801399 @default.
- W2007136511 hasConceptScore W2007136511C172385210 @default.
- W2007136511 hasConceptScore W2007136511C183912175 @default.
- W2007136511 hasConceptScore W2007136511C194257627 @default.
- W2007136511 hasConceptScore W2007136511C2412688 @default.
- W2007136511 hasConceptScore W2007136511C24326235 @default.
- W2007136511 hasConceptScore W2007136511C41008148 @default.
- W2007136511 hasConceptScore W2007136511C46362747 @default.
- W2007136511 hasConceptScore W2007136511C62520636 @default.
- W2007136511 hasConceptScore W2007136511C66322947 @default.
- W2007136511 hasConceptScore W2007136511C761482 @default.
- W2007136511 hasConceptScore W2007136511C89227174 @default.
- W2007136511 hasLocation W20071365111 @default.
- W2007136511 hasOpenAccess W2007136511 @default.
- W2007136511 hasPrimaryLocation W20071365111 @default.
- W2007136511 hasRelatedWork W1530663281 @default.
- W2007136511 hasRelatedWork W1538003581 @default.
- W2007136511 hasRelatedWork W1947410022 @default.
- W2007136511 hasRelatedWork W1979482498 @default.
- W2007136511 hasRelatedWork W1998976718 @default.
- W2007136511 hasRelatedWork W2018878879 @default.
- W2007136511 hasRelatedWork W2020101334 @default.
- W2007136511 hasRelatedWork W2038547547 @default.
- W2007136511 hasRelatedWork W2045776628 @default.
- W2007136511 hasRelatedWork W2071222630 @default.
- W2007136511 hasRelatedWork W2087750497 @default.
- W2007136511 hasRelatedWork W2093004472 @default.
- W2007136511 hasRelatedWork W2117377122 @default.
- W2007136511 hasRelatedWork W2169887600 @default.
- W2007136511 hasRelatedWork W2177950396 @default.
- W2007136511 hasRelatedWork W2535289532 @default.
- W2007136511 hasRelatedWork W2962657452 @default.
- W2007136511 hasRelatedWork W3140661314 @default.
- W2007136511 hasRelatedWork W3142892065 @default.
- W2007136511 hasRelatedWork W2514890470 @default.
- W2007136511 isParatext "false" @default.
- W2007136511 isRetracted "false" @default.
- W2007136511 magId "2007136511" @default.
- W2007136511 workType "article" @default.