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To assist in providing a uniform method for calculating and measuuring torque pulsations which occur during starting of synchronous motors. Synchronous motors as discussed in this guide specifically refer to salient-pole type motors with wound main field circuits with either a continuous or interrupted amortisseur cage/ In modern installations, direct current is applied to the main field by means of slip rings from a static exciter or by a rotating brushless excitation system to establish synchronous operation.

定价： 126元 / 折扣价： 108 元

The standard establishes a set of processes by which engineers and technologists can include consideration of ethical values throughout the stages of concept exploration and development, which encompass system initiation, analysis, and design. This standard provides engineers and technologists with an implementable process aligning innovation management processes, system design approaches, and software engineering methods to help address ethical concerns or risks during system design. IEEE Std 7… read more 000(TM) does not give specific guidance on the design of algorithms to apply ethical values such as fairness and privacy. read less

定价： 121元 / 折扣价： 103 元

This Recommended Practice applies to the detection of partial discharges occurring in the insulation of electrical apparatus or its components, and to the measurement of the associated apparent charge at the terminals, when an alternating test voltage is applied. Tests for partial discharges using direct voltage are discussed in Appendix E . This Recommended Practice is concerned with general principles only. Where specific apparatus is covered by standards documents that include corona… read more detection and measurement procedures, those standards should be followed. read less

定价： 56元 / 折扣价： 48 元

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