JOHN W VRABLEC, SR
Electrician at 5 St, Sealy, TX
License number
Texas 44828
Expiration Date
Aug 27, 2017
Category
Journeyman Electrician
Address
Address
815 5Th St, Sealy, TX 77474
Phone
(979) 472-9896
Professional information
Electrical Yoke Tester
US Patent:
5296818, Mar 22, 1994
Filed:
Aug 13, 1992
Appl. No.:
7/929690
Inventors:
John W. Vrablec - Sealy TX
Assignee:
Houston Industries Incorporated - Houston TX
International Classification:
G01R 3102
US Classification:
324542
Abstract:
A tester is provided for a control yoke of an oil-filled electrical power switch. The tester can be easily and safely used by a line crew member. The tester is connected to the yoke which carries electrical signals to control the position of the switch. Control signals are then furnished to the yoke in the usual manner. Indicators on the tester identify whether the yoke or the switch is the source of the problem.