Integrated circuit for control of the transient recovery voltage in direct and synthetic testing of high voltage circuit breakers
US3959722A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 18, 1974 |
| Grant date | May 25, 1976 |
| Priority date | — |
| Expiry date | Nov 18, 1994 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/3336
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A test circuit for testing high voltage circuit breakers, the circuit being capable of providing a transient recovery voltage of a predetermined form to test the breaking capacity of circuit breakers. The test circuit comprises a first multi-parameter network for producing low frequency components of the transient recovery voltage, which network is constituted of a first inductance connected in series between a H.V. source and a circuit breaker, and of a capacitance-resistance unit connected to the output of the first inductance. A second multi-parameter network is provided for producing high frequency components of the transient recovery voltage. This second network is connected in series with the unit. The second network and the unit are connected across the terminals of the circuit breaker undergoing test.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.