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Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result
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CPC
H02H11/00
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Parent Industries
H
ELECTRICITY
H02
Electric power
H02H
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
Current Industry
H02H11/00
Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result
Sub Industries
H02H11/001
in case of incorrect or interrupted earth connection
H02H11/002
in case of inverted polarity or connection; with switching for obtaining correct connection
H02H11/003
using a field effect transistor as protecting element in one of the supply lines
H02H11/004
in case of incorrect phase sequence; with switching for obtaining correct phase sequence
H02H11/005
in case of too low isolation resistance, too high load, short-circuit; earth fault
H02H11/006
in case of too high or too low voltage
H02H11/007
involving automatic switching for adapting the protected apparatus to the supply voltage
H02H11/008
preventing unsafe switching operations in substations (Schaltfehlerschutz)
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