Electricity: electrical systems and devices – Safety and protection of systems and devices – Ground fault protection
Patent
1993-10-25
1995-03-21
DeBoer, Todd E.
Electricity: electrical systems and devices
Safety and protection of systems and devices
Ground fault protection
361 48, 361 87, 361106, 187277, 187289, 340652, 324527, 324538, H02H 316
Patent
active
054002044
ABSTRACT:
System For Detecting A Breakage Of A Power Cable For An Elevator System Which can accurately detect the breakage of at least one copper wire in the respective power cables present between the inverter of the elevator system and a linear motor moving element and which is difficult to visually inspect.
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Oshima Kenji
Suganuma Manabu
Abate Joseph P.
Deboer Todd E.
Otis Elevator Company
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