Electrical equipment on movable bridges

Electrical equipment on movable bridges

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Alternating-current motors (polyphase induction motors) are reversed by reversing the phase sequence of the stator coils. ... For a 3-phase circuit two of the leads must be controlled to insure against the possibility of a motor operating on a single ... In another type of apparatus a pilot circuit operating a magnetic contactor in the main line is controlled by contacts on a ... Figure 26 is a schematic wiring diagram for an overload relay with electrical automatic reset and auxiliary push-buttonanbsp;...

Title:Electrical equipment on movable bridges
Author: Condé Balcom McCullough, Albin Leroy Gemeny, William Roy Wickerham
Publisher: - 1931

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