Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1995-05-02
1997-08-12
Hofsass, Jeffery
Communications: electrical
Condition responsive indicating system
Specific condition
340603, 340616, 73 40, 364509, G08B 2100
Patent
active
056569998
ABSTRACT:
A system for use with an electric power transmission device having oil filtration apparatus including an oil filtration unit arranged external to the electric power transmission device, a motor-driven circulation pump and at least one conduit extending between the oil filtration unit and the electric power transmission device utilizes a secondary containment enclosure for enclosing the oil filtration unit, pump and conduits. The secondary containment enclosure includes a sump reservoir to which oil gravitates upon leakage of oil from the oil filtration apparatus enclosed by the secondary containment volume, and there is associated with the sump reservoir a signal-transmitting device for transmitting a signal in response to the accumulation of oil in the sump reservoir for actuating an alarm, isolating the source of insulating oil from the circulation system and disconnecting power to the circulating pump. The system thus prevents the loss of insulating oil and environmental contamination by leaks or ruptures in the oil circulation conduits.
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Hofsass Jeffery
Woods Davetta C.
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