System and method for modulating a power supply in a relay test system
US8217677B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 13, 2008 |
| Grant date | Jul 10, 2012 |
| Priority date | — |
| Expiry date | May 11, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/3272
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system and method are provided for using a class H amplifier in a tester for testing protective relaying equipment, particularly useful in conducting end to end testing. The class H amplifier is configured to provide separation between the amplifier and the power supply of the tester using a DSP which also offers flexibility for programming algorithms to realize efficiencies in matching the waveform to the output rail. End to end testing is also improved by including expected results for the test case used by the tester to enable the tester to determine how close the results are to what is expected. This offers time savings and is less prone to error in that the expected results can be predetermined by a qualified/experienced professional.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.