Transformer alarm annunciator
US4868547A · kind A · utility
1Cited by
2References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 6, 1988 |
| Grant date | Sep 19, 1989 |
| Priority date | — |
| Expiry date | Sep 6, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B23/00
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
The present invention is a transformer alarm annunciator which discloses a system that transmits a general alarm signal to a central location in response to one of a plurality of alarm conditions without blocking the signal path, so that in the event of system failure the alarm signal will still be transmitted as a transformer alarm. The device provides a means to disable a particular alarm condition while allowing the remaining alarms to be monitored.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.