BRYAN MICHAEL GROMACKI
Engineers in Erie, PA
License number
Pennsylvania PE049151E
Category
Engineers
Type
Professional Engineer
Address
Address
Erie, PA 16508
Professional information
Braking Grid Isolation For Locomotive Traction Motor Control System
US Patent:
5517093, May 14, 1996
Filed:
Dec 16, 1993
Appl. No.:
8/168610
Inventors:
Timothy Augustyniak - Meadville PA
Bryan M. Gromacki - Erie PA
Bryan M. Gromacki - Erie PA
Assignee:
General Electric Company - Erie PA
International Classification:
H02P 154, H02P 312
US Classification:
318 63
Abstract:
A locomotive traction motor control system includes a traction motor to propel a locomotive when it motors, and to slow the locomotive when it engages dynamic braking. A resistive element dissipates electrical energy generated during dynamic braking. A control element, operatively coupled to the resistive element, selectively isolates the resistive element from the tractor motor when the locomotive motors. The resistive grid isolation may be accomplished with a pair of isolation switches coupled in series between the traction motor and the resistive element and a controller which opens the isolation switches when the locomotive motors and closes the isolation switches when the locomotive engages dynamic braking.