Grounding brush monitor

Details Grounding brush monitor Grounding brush monitor

1988-01-26

1990-07-03

Orsino, Joseph A.

Communications: electrical

Condition responsive indicating system

Specific condition

340679, 361212, G08B 2100

Patent

active

049395068

ABSTRACT:
A ground circuit monitor (10) is disclosed for continuously monitoring the potential of a grounding brush (12) in the grounding circuit (14) used to ground a rotating member (16) within a machine (18). A proximitor (26) generates a radio frequency signal impressed across the secondary of a coupling transformer (30). The primary of the coupling transformer (30) is in series between the grounding brush and ground. In normal operation, the capacitance of the film of lubrication between the rotating member and machine prevents oscillation in the transformer. Failure of the grounding circuit increases oscillation, generating an output from the proximitor to the relay unit (32) to generate an alarm.

REFERENCES:
patent: 3831160 (1974-08-01), Cronin et al.
patent: 4502046 (1985-02-01), Wonn et al.
patent: 4746911 (1988-05-01), Laine
General Electric Corporation, The Shaft Voltage Monitor, brochure.

Affiliated with

Also associated with

Rating

Grounding brush monitor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Grounding brush monitor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Grounding brush monitor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1893785