TREA

Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result

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Industry

  • CPC
  • H02H11/00
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Parent Industries

HELECTRICITY H02Electric power H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS

Current Industry

H02H11/00Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result

Sub Industries

H02H11/001in case of incorrect or interrupted earth connection H02H11/002in case of inverted polarity or connection; with switching for obtaining correct connection H02H11/003using a field effect transistor as protecting element in one of the supply lines H02H11/004in case of incorrect phase sequence; with switching for obtaining correct phase sequence H02H11/005in case of too low isolation resistance, too high load, short-circuit; earth fault H02H11/006in case of too high or too low voltage H02H11/007involving automatic switching for adapting the protected apparatus to the supply voltage H02H11/008preventing unsafe switching operations in substations (Schaltfehlerschutz)
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