Controlled switching device

Details Controlled switching device Controlled switching device

2011-03-08

2011-03-08

Paladini, Albert W (Department: 2836)

Electrical transmission or interconnection systems

Switching systems

Condition responsive

C361S185000

Reexamination Certificate

active

07902696

ABSTRACT:
A target-closing phase-map generating section generates in advance a target closing phase map in consideration of a pre-arc characteristic and variations of a mechanical action of a breaker, and amplitude fluctuations of the load voltage. A target-closing time calculating section calculates a target closing time string from frequencies and phases of the power source voltage and the load voltage, respectively, of the breaker referring to the target closing phase map. A closing control section, when a close command11is inputted, controls the timing of outputting a closing control signal based on a predicted closing time and the target closing time string.

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patent: 2003-168335 (2003-06-01), None
K. Froehlich, et al., “Controlled Closing on Shunt Reactor Compensated Transmission Lines”, IEEE Transactions on Power Delivery, vol. 12, No. 2, Apr. 1997, pp. 734-746.

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