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IPC Subgroup
H02H 3/44

responsive to the rate of change of electrical quantities

Introduced: January 1980

Last revised: January 2006

Full Title

Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection > responsive to the rate of change of electrical quantities

Classification Context

Section:
ELECTRICITY
Class:
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
Subclass:
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS