Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired

Official title: Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection (specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems H02H7/00; systems for change-over to standby supply H02J9/00 ){; integrated protection (for motors H02H7/0822)}

H02H3/00 (Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired) appears on 9,557 US grants and 8,821 published applications in this corpus.