Electricity: electrical systems and devices – Safety and protection of systems and devices – With specific quantity comparison means
Patent
1982-06-07
1984-09-11
Moose, Jr., Harry E.
Electricity: electrical systems and devices
Safety and protection of systems and devices
With specific quantity comparison means
323210, G05F 170
Patent
active
044714017
ABSTRACT:
A secondary arc extinction device in an electric power system, including a bus bar; an electric power line connected to said bus bar; protective relaying means connected to said bus bar; a first reactance means having a first terminal connected to said electric power line; a second reactance means connected between a second terminal of said first reactance means and ground; line voltage detecting means connected to said electric power line for detecting the voltage of said electric power line; current detecting means coupled to said second reactance means for detecting the current flowing in said second reactance means; and controlling means connected to said second reactance means for controlling the reactance of said second reactance means in response to said protective relaying means, line voltage detecting means and current detecting means.
REFERENCES:
patent: 1784682 (1930-12-01), Schimpf
patent: 2050082 (1936-08-01), Buell
patent: 2824978 (1958-02-01), Knudsen
patent: 3932808 (1976-01-01), Frank
patent: 4357570 (1982-11-01), Schmid et al.
"The Application of Controlled Reactive Compensator for Single Pole Switching on Long EHV Line Sections", Woodford, EPRI/IREQ, pp. 348-349, Sep. 19-21, 1979.
"A New Thyristor Controlled VAR Compensator Design"-Hammad et al., Canadian Communications & Power Conference, Oct. 18-20, 1978.
Moose Jr. Harry E.
Tokyo Shibaura Denki Kabushiki Kaisha
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