volume 17, issue 1, P50-52 1981
DOI: 10.1007/bf01245730
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Abstract: In evaluation of economic efficacy of pump units, the expenditures for electric power are determined without taking account of the operating conditions of the electric motor. The factors characterizing the operating conditions of the motor are power load factor Kp and temporal load factor K t of the motor, power loss factor of the line KZ, power factor cos ~, etc.The factor Kp is a ratio of the average power actually consumed by the motor N a to the rated power of the motor Nr, i.e., Kp = Na/N r. Putting in t…

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