THE RELAY TESTING HANDBOOK


THE RELAY TESTING HANDBOOK

The Relay Testing Handbook 4 Three-phase systems can be either clockwise (A-B-C) or counterclockwise (A-C-B) rotation. The phase rotation of the system can be determined by the rotor direction of rotation, or the position of the windings. To correctly determine phase rotation, imagine that the sine

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  • File name: trth-ad-4.pdf
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