John R Perulfi

US Patent:

42937477, Oct 6, 1981

Filed:

Jan 29, 1979

Appl. No.:

6/007052

Inventors:

John R. Perulfi - Monroeville PA

Assignee:

Westinghouse Electric Corp. - Pittsburgh PA

International Classification:

H01N 3314
H01N 940

US Classification:

200145

Abstract:

A generally cross-shaped, or "T"-shaped circuit-interrupter assemblage is provided having three outwardly radiating supporting arms, or members, within each of which is disposed a puffer-type compressed-gas circuit-interrupting unit. Common contact-operating means are provided at the common point of intersection of the three arms, or legs, so that simultaneous operation of the three puffer-type interrupters is accomplished. The electrical circuit passes serially through each of the three puffer-interrupting structures to thereby provide a high-voltage circuit-interrupter adaptable for voltages of the order of 345 KV, for example. An additional feature of the present invention is the provision of a common rotatable operating disc having pivotally connected thereto, adjacent its outer periphery, floating-connecting link structure, each of the three floating links being pivotally connected to the respective movable contact-operating rod of each of the three puffer-type interrupting units. An additional operating, or "pull" rod connected adjacent the periphery of the common rotatable operating disc acts as a common pull-rod extending to ground potential to thereby enable the operation of said disc at high voltage. An additional feature of the present invention is the provision of a closing resistance, when desired, for each of the three puffer-type circuit-interrupters.

US Patent:

49720554, Nov 20, 1990

Filed:

Dec 29, 1989

Appl. No.:

7/458933

Inventors:

John R. Perulfi - Monroeville PA
Joseph R. Rostron - Murrysville PA

Assignee:

ABB Power T&D Company Inc. - Blue Bell PA

International Classification:

H01H 3366

US Classification:

200144B

Abstract:

A circuit breaker utilizes a plurality of vacuum interrupters immersed in oil. A cross-bar with electrically conductive sections completes a series electrical circuit through the circuit breaker and actuates operating mechanisms, to close the contacts of the vacuum interrupters when in the raised position as the cross-bar is lowered, the contacts of the vacuum interrupters are opened by impact forces before isolation gaps which fill with oil are created in the series electrical circuit. Various arrangements of the vacuum interrupters are disclosed for uprating existing oil circuit breakers.

US Patent:

45104778, Apr 9, 1985

Filed:

Oct 19, 1983

Appl. No.:

6/543644

Inventors:

Joseph R. Rostron - Franklin Township PA
John R. Perulfi - Monroeville PA

Assignee:

Westinghouse Electric Corp. - Pittsburgh PA

International Classification:

H01F 2702

US Classification:

336 92

Abstract:

A current transformer characterized by a terminal bushing extending from a tank with a pair of spaced conductors extending through the bushing and into the tank and with the portions of the conductors in the tank being enclosed within tubular means. The assembly of the conductors, bushing, and tubular means being clamped together by resilient (spring) means for holding the conductors in tension and the bushing and tubular means in compression. The transformer also embodies two separate oil systems.