Manual of electromechanical devices

Manual of electromechanical devices

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Automatic transfer switches transfer a load automatically from its original source of supply to an emergency source in case of failure ... These switches are available in sizes up to 1000 amp for operation on d-c or a-c circuits of 750 volts or less.

Title:Manual of electromechanical devices
Author:Douglas C. Greenwood
Publisher: - 1965


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