Monitoring system for checking electric rotary machine for local overheating
US4436699A · kind A · utility
9Cited by
10References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 8, 1981 |
| Grant date | Mar 13, 1984 |
| Priority date | — |
| Expiry date | Jun 8, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/34
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A monitoring system for checking an electric rotary machine for local overheating including a sensing device for sensing the concentration of minuscule particles in a gas serving as coolant for the machine, and a supply device for supplying to the sensing device a test gas containing minuscule particles of gasifiable liquid. The test gas is supplied to the sensing device by the supply device to permit the sensing device to perform a sensing operation, so as to determine whether or not the sensing device is functioning normally.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.