Cooling medium temperature monitoring system for rotary electric machine
US4733225A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 4, 1985 |
| Grant date | Mar 22, 1988 |
| Priority date | — |
| Expiry date | Oct 4, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K9/24
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A cooling medium temperature monitoring system for a rotary electric machine for cooling stator coils by as cooling medium flowing in a plurality of cooling medium passages provided in the stator coils, has a plurality of temperature detectors for measuring the temperatures of the cooling medium in the outlets of the plurality of cooling medium passages; and a circuit for setting the temperature warning value at a value which is responsive to the output of a generator, and a calculator circuit for comparing the detected outputs of the temperature detectors with the set value of the warning value setting circuit to generate an alarm signal when the output of any one of the detectors exceed the set warning value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.