Programmable motor protector

Details Programmable motor protector Programmable motor protector

1982-09-27

1984-09-04

Moose, Jr., Harry E.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Motor protective condition responsive circuits

364483, H02H 504, H02H 708, G01R 1900, G01R 2100

Patent

active

044700920

ABSTRACT:
A programmable motor protector includes a protect module which connects through one serial link to a programmer module and through a second serial link to an RTD module. The protect module is a microprocessor which is programmed to monitor the values of various motor operating parameters and compare them against alarm limits and trip limits which are entered through the programmer module. In addition to indicating a trip or alarm condition, the system saves in a diagnostic table an image of the motor operating conditions at the moment a trip is detected. This diagnostic table may be examined using the programmer module.

REFERENCES:
patent: 3838314 (1974-09-01), Boothman et al.
patent: 3845354 (1974-10-01), Boothman et al.
patent: 3848160 (1974-11-01), Boothman et al.
patent: 4319298 (1982-03-01), Davis et al.
patent: 4377836 (1983-03-01), Elms et al.
Brochure-General Electric-"Lodtrak II".

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