Single phase control and protection system of high voltage...

Details Single phase control and protection system of high voltage... Single phase control and protection system of high voltage...

2007-09-25

2007-09-25

Leja, Ronald W. (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific circuit breaker or control structure

Reexamination Certificate

active

10374844

ABSTRACT:
A protection system and single-phase control of high voltage with close loop dry insulation is provided. A detector detects the voltage through the influence of the electrical field in conductors, insulators and breakers, mainly, turning the field into an electronic signal. This signal is processed by means of a control and protection unit and responds through a trip mechanism so that if needed the contacts get opened or closed to allow or stop the flow of current through the system. A method to increase the life expectation of the contacts in the vacuum breaker chambers is also provided.

REFERENCES:
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patent: 6242708 (2001-06-01), Marchand et al.
patent: 6295190 (2001-09-01), Rinaldi et al.
patent: 6373015 (2002-04-01), Marchand et al.
patent: 6687110 (2004-02-01), Murray
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patent: 6888086 (2005-05-01), Daharsh et al.
patent: 6897396 (2005-05-01), Ito et al.
patent: 7133271 (2006-11-01), Jonas et al.

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