LEE E BERKEBILE
Engineers in Pittsburgh, PA
License number
Pennsylvania PE016487E
Category
Engineers
Type
Professional Engineer
Address
Address
Pittsburgh, PA 15239
Professional information
High Voltage Plain Break Circuit Interrupter
US Patent:
4249049, Feb 3, 1981
Filed:
Dec 19, 1977
Appl. No.:
5/861859
Inventors:
William H. Fischer - Pittsburgh PA
Charles F. Cromer - Trafford PA
Robert L. Hess - N. Versailles PA
Lee E. Berkebile - Pittsburgh PA
Charles F. Cromer - Trafford PA
Robert L. Hess - N. Versailles PA
Lee E. Berkebile - Pittsburgh PA
Assignee:
Electric Power Research Institute, Inc. - Palo Alto CA
International Classification:
H01H 3324, H01H 948
US Classification:
200144R
Abstract:
An improved circuit interrupter for high voltage and low current provides reactor and capacitor switching functions with fewer serial interrupters. Improved electrical field configuration is provided by moving and stationary contact shields, surrounding the main contacts, which aid the plain break operation of the device by elimination of critical points of dielectric stress. The plain break feature provides less mechanical complexity and consequent higher reliability.
Resonant-Current-Source Gate Drive For Simultaneous Operation Of Thyristors Using Alternating-Current In The Resonant Circuit
US Patent:
2008005, Mar 6, 2008
Filed:
Aug 21, 2007
Appl. No.:
11/842764
Inventors:
Lee Berkebile - West Mifflin PA, US
International Classification:
H03K 17/725
US Classification:
327447000
Abstract:
Systems, circuits, and methods for providing alternate polarity current pulses through a current transformer for operation of a thyristor are disclosed.