Fault detector for electric motor and control

Details Fault detector for electric motor and control Fault detector for electric motor and control

1987-10-08

1989-02-28

Salce, Patrick R.

Electrical generator or motor structure

Dynamoelectric

Rotary

73116, 340648, H02K 1100, H02J 100

Patent

active

048088650

ABSTRACT:
A spa or whirlpool tub includes an A.C. motor coupled to drive a pump. The motor includes a frame having a mounting portion. A motor winding within the frame is connected to an A.C. power supply. An electronic control unit includes a housing and is mounted to the frame. The control unit has a cable connecting the electronic control to a power receptacle. The cable includes a power plug for connecting to a power receptacle. A connecting cable is wired to the motor windings. The connecting cable includes a connector plug corresponding to the power cable unit, and the electronic unit includes a complementing connector receptacle. The incoming motor power supply can be alternately made through the electronic control unit or directly to the winding, for monitoring the operating state of the motor and control unit. A separate cable having a light and connector plug is inserted in the control unit receptacle, to separately monitor the operating state of the control unit.

REFERENCES:
patent: 1865347 (1932-06-01), Williams
patent: 2133985 (1938-10-01), Green
patent: 3619641 (1971-11-01), Ballard
patent: 4297627 (1981-10-01), Schaefer

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