Electricity: electrical systems and devices – Safety and protection of systems and devices – Arc suppression at switching point
Patent
1986-04-04
1988-06-28
Pellinen, A. D.
Electricity: electrical systems and devices
Safety and protection of systems and devices
Arc suppression at switching point
361 13, H02H 720
Patent
active
047543604
ABSTRACT:
An apparatus for extinguishing the arc which occurs between a pair of electrodes separated in the switchgear when the high voltage loaded switchgear is opened. The earliest arc is detected which occurs between a pair of electrodes. When the earliest arc is detected, a gate signal is transmitted to a pair of thyristor connected anti-parallel between a pair of electrodes. Then among those thyristors, a thyristor located in the forward direction relative to the polarity of power supply becomes conductive. As a result of the thyristor being conductive, the arc occuring between a pair of electrodes is eliminated.
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Nipponkouatsudenki Kabushikikaisha
Pellinen A. D.
Wysocki A. Jonathan
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