Non-intrusive fault location system for an overheat detection system
US6326598A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 17, 2001 |
| Grant date | Dec 4, 2001 |
| Priority date | — |
| Expiry date | Jan 17, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H5/043
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An overheat event location module for use with an existing overheat detection system in an aircraft. The module is non-intrusively connected to the overheat detection system, yet senses currents in the system. The module, by way of the sensed currents is able to distinguish true overheat events from false events (normally created in a test mode) and normal non-overheat conditions. The module is able to respond to the occurrence of an overheat event by measuring the currents in the sensing cable loop, then using the measured currents to produce an estimate of the position in the loop at which the overheat event occurred. Conveniently the module records both the fact of the event and its location, such that subsequent maintenance actions are facilitated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.