Electricity: electrical systems and devices – Safety and protection of systems and devices – High voltage dissipation
Patent
1999-02-23
2000-09-19
Sherry, Michael J.
Electricity: electrical systems and devices
Safety and protection of systems and devices
High voltage dissipation
361111, 361 938, 361118, H02H 100
Patent
active
061221570
ABSTRACT:
An AC power distribution system employs a method (900) and apparatus (400) for surge protecting an electrical load connected thereto. The apparatus is coupleable to at least three conductors of the AC power distribution system. A first circuit path (305) of the apparatus electrically couples a first conductor of the AC power distribution system to a second conductor of the AC power distribution system. The first circuit path includes a first thermal protector (337) electrically in series with and operably thermally coupled to a first surge protection device (331). A second circuit path (307) of the apparatus electrically couples the first conductor of the AC power distribution system to a third conductor of the AC power distribution system. The second circuit path includes a second thermal protector (339) electrically in series with and operably thermally coupled to a second surge protection device (333). A third circuit path (309) of the apparatus electrically couples the second conductor of the AC power distribution system to the third conductor of the AC power distribution system. The third circuit path includes a third surge protection device (335) electrically in series with and operably thermally coupled to at least one of the first thermal protector and the second thermal protector.
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