Electricity: circuit makers and breakers – Multiple circuit control – Operating means
Patent
1994-04-08
1996-10-29
Brown, Brian W.
Electricity: circuit makers and breakers
Multiple circuit control
Operating means
218154, 218155, 200 5032, H01H 3312, H01H 3346, H01H 3353
Patent
active
055698913
ABSTRACT:
The invention provides a high performance circuit breaker with an independent pole operation linkage and conical composite bushings. A mechanical linkage for independently opening and closing a plurality of associated switches is provided by the invention. The linkage comprises a plurality of connecting rods that provide the initial driving force to open or close the switch, cranks for opening and closing the contacts of respective switches, linking elements which couple together the connecting rods and the cranks, and a number of lever assemblies having a bearing ring interfaced thereto. The bearing rings provide a supportive interface between two linking element but permit the linking elements to rotate independently from one another. The lever assemblies also provide an interface for the connecting rods and linking element. According to a method of the present invention, a connecting rod is actuated in response to a signal to cause the lever assembly to pivot. The linking rod interfaced with the connecting rod via the lever assembly is then rotated in response to the pivoting. A crank interfaced with the linking element is then pivoted in response to the rotation of the linking element thereby opening or closing a respective switch. The invention further provide a means and method for synchronously opening and closing the switches based on the current flowing into the switches. Preferably, conical composite bushings are provided in combination with the independent pole operation linkage in a high voltage circuit breaker according to the invention.
REFERENCES:
patent: 2967221 (1961-01-01), Friedrich
patent: 3009983 (1961-11-01), Oppel
patent: 3059044 (1962-10-01), Friedrich et al.
patent: 3129276 (1964-04-01), Easley et al.
patent: 3214541 (1965-10-01), Baker et al.
patent: 3252251 (1966-03-01), Floessel
patent: 4195211 (1980-03-01), Aslan et al.
patent: 4306263 (1981-12-01), Gray et al.
patent: 4357502 (1982-11-01), Beck
patent: 4417111 (1983-11-01), Kishi et al.
patent: 4442329 (1984-04-01), Gray et al.
patent: 4505033 (1985-03-01), Wheeler
patent: 4570202 (1986-02-01), Nishida et al.
patent: 4775849 (1988-10-01), Lucas
patent: 4814560 (1989-03-01), Akesson
patent: 4833278 (1989-05-01), Lambeth
patent: 4956903 (1990-09-01), Thuries
patent: 5059753 (1991-10-01), Hamm
patent: 5128502 (1992-07-01), Hux
patent: 5170885 (1992-12-01), Guenther et al.
patent: 5245145 (1993-09-01), Freeman et al.
patent: 5262605 (1993-11-01), Pham et al.
R. Gerald Colclaser, Jr.; Charles L. Wagner; Edward P. Donohue; Multistep Resistor Control of Switching Surges; IEEE Transactions on Power Apparatus and Systems, vol. PAS-88, No. 7, Jul. 1969.
John H. Brunke; Guenter G. Schockalt; Synchronous Energization of Shunt Capacitors at 230 kV; IEEE Power Engineering Society; Nov. 30, 1977.
R. W. Alexander; Synchronous Closing Control for Shunt Capacitors; IEEE Power Engineering Society; Dec. 19, 1984.
Sue S. Mikhail; Mark F. McGranaghan; Evaluation of Switching Concerns Associated With 345 KV Shunt Capacitor Applications; IEEE Transactions on Power Systems, vol. PWRD-1, No. 2, Apr. 1986.
Robert A. Jones; Hoke S. Fortson, Jr.; Consideration of Phase-To-Phase Surges In The Application Of Capacitor Banks; IEEE Transactions on Power Delivery, vol. PWRD-1, No. 3, Jul. 1986.
G. Moraw; W. Richter; H. Hutegger; J. Wogerbauer; Point-On-Wave Controlled Switching Of High Voltage Circuit-Breakers; International Conference on Large High Voltage Electric Systems; Aug. 28-Sep. 3, 1988.
E. Andersen; S. Berneryd; S. Lindahl; Synchronous Energizing Of Shunt Reactors And Shunt Capacitors; International Conference on Large High Voltage Electric Systems; Aug. 28-Sep. 3, 1988.
J. R. Ribeiro; M. E. McCallum; An Application of Metal Oxide Surge Arresters In The Elimination Of Need For Closing Resistors In EHV Breakers; IEEE Transactions on Power Delivery, vol. 4, No. 1, Jan. 1989.
ABB Power T&D Company, Inc. Product Literature: "TTT7 Double Break Group-Operated Outdoor Disconnect Switches".
ABB Power T&D Company, Inc. Product Literature: "Type PM SF.sub.6 Power Circuit Breaker".
B. J. Ware; J. G. Reckleff; G. Mauthe; G. Schett; Synchronous Switching of Power Systems; CIGRE, Aug. 26-Sep. 1, 1990.
A. Holm; R. Alvinsson; U. Akesson; O. Karlen; Development of Controlled Switching of Reactors, Capacitors, Transformers and Lines; CIGRE, Aug. 26-Sep. 1, 1990.
Victor Gor, Southern California Edison Co.; Shunt Capacitor Bank Swithcing at 69KV, 115KV and 230KV; EEI Electrical System Equipment Committee, Mar. 29-31, 1993.
"Evaluation of a New Protective Coating for Porcelain Insulators"; IEEE Transactions on Power Apparatus and Systems; vol. PAS-101; No. 12; Dec. 1982.
J. R. Meyer & E. P. Donohue, ABB Power T&D Company; M. A. Noyes & L. J. Savio, Consolidated Edison Company of New York, Inc.; "SF.sub.6 Circuit Breaker Technology Advancements".
W. B. Freeman & K. Froehlich, ABB Power T&D Company, Inc.; B. Fluri, Cellpack Ltd.; "Application of RTV-Composite Insulation to High Voltage Bushings".
ABB Power T&D Company, Inc. Product Literature: "Vertical-Break Group-Operated Outdoor Disconnect Switches".
ABB Power T&D Company, Inc. Product Literature: "Type PM Dead Tank".
Freeman Willie B.
Johnson David S.
Meyer Jeffry R.
ABB Power T&D Company Inc.
Brown Brian W.
Friedhofer Michael A.
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