Invention Grant
- Patent Title: Temperature compensation of insulation monitoring for rotating machines
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Application No.: US15714788Application Date: 2017-09-25
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Publication No.: US10539601B2Publication Date: 2020-01-21
- Inventor: Dan Tho Lu , Ronald W. Wilson
- Applicant: General Electric Company
- Applicant Address: US NY Schenectady
- Assignee: General Electric Company
- Current Assignee: General Electric Company
- Current Assignee Address: US NY Schenectady
- Agency: Mintz Levin Cohn Ferris Glovsky and Popeo, P.C.
- Main IPC: G01R31/02
- IPC: G01R31/02 ; G01R31/34 ; G01R35/00 ; G01R19/32

Abstract:
A system includes a monitoring and/or protection system that includes an insulation derivation circuit. The insulation derivation circuit is configured to derive a first temperature compensation curve based on a first temperature and a first current, and the monitoring and/or protection system is configured to communicatively couple to a first current sensor configured to sense the first current traversing a first phase of a stator winding of a motor, a generator, or a combination thereof. The insulation derivation circuit is also configured to communicatively couple to a first temperature sensor configured to sense the first temperature of the stator when the stator is energized, and the temperature compensation curve is configured to map a temperature to a leakage dissipation factor.
Public/Granted literature
- US20180011133A1 TEMPERATURE COMPENSATION OF INSULATION MONITORING FOR ROTATING MACHINES Public/Granted day:2018-01-11
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