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Reply to "PRR Panhandle Division"

George

They have a shared common whenever a train bridges the 2 districts. The outside wheels connect them if the trucks are metal. When the 2 pickup rollers from any dual roller car cross the block the 2 hot leads are connected. If this happens the 2 transformers are paralleled via the pickup roller wire and outside metal wheeled trucks. If the transformers are dissimilar like a Z4000 and a modern ZW,it is almost impossible to phase them correctly because they may put out different shaped sine waves. On like transformers IMO the commons should all be connected and the transformers in phase with each other. The bricks should all be in phase with each other as the plugs are polarized. Still if 2 adjacent bricks are paralleled at different potentials, the small wire in a dual rollered car is back feeding some current to the block with less potential. Some early bricks were out of phase with later model bricks. Again I would not use unlike transformers if there was any chance they can be paralleled via the rollers. I only see one loop on your layout and assume the power districts are all adjacent. This may be a problem.

Dale H

OGR Publishing, Inc., 1310 Eastside Centre Ct, Suite 6, Mountain Home, AR 72653
800-980-OGRR (6477)
www.ogaugerr.com

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