Patents Assigned to Toshin Denki Kabushiki Kaisha
  • Earth Leakage Breaker
    Patent number: 6882257
    Abstract: Malfunction of an earth leakage breaker due to a lightning surge is prevented, and when a lightning arrester is short-circuited and damaged by a high-level lightning surge, a power supply short circuit is prevented. A contact 41, an overcurrent detector section 43, and a zero phase current transformer 44 are disposed in order from a power supply side to a load side, and a lightning arrester 3 is connected between the overcurrent detector section 43 and the zero phase current transformer 44.
    Type: Grant
    Filed: August 21, 2001
    Date of Patent: April 19, 2005
    Assignees: Mitsubishi Denki Kabushiki Kaisha, Toshin Denki Kabushiki Kaisha
    Inventors: Takashi Anamura, Setsuo Hosogai, Kunihiko Takahata