The negative sequence reactance X2 can be determined by driving the machine at rated speed with low excitation. Short circuit ant two phases and open circuit ...

The negative sequence reactance x2g of the generator, is equal to x2 — xe and is equal to the geometric mean of the generator subtransient reactance with xe — 0 ...

26 апр. 2019 г. · Negative sequence component:- it represents three equal phasors, phase displaced by 120° with each other,and has phase sequence opposite to that ... What is the definition of negative sequence in motors? - Quora Why is the zero-sequence reactance magnitude less in ... - Quora The value of the positive sequence impedance is not equal to ... Why is zero sequence impedance of transmission line ... - Quora Другие результаты с сайта www.quora.com

The document describes procedures for measuring the negative sequence reactance (X2) and zero sequence reactance (X0) of a synchronous machine.

25 февр. 2019 г. · This reversed rotating stator current induces double frequency currents in rotor structures. The resulting heating can damage the rotor very quickly.

The negative-sequence reactance of a transformer is equal to the positive-sequence reactance. This is because the transformer is a symmetrical device, and the ...

Negative-sequence reactance of synchronous machines. Abstract: Discussion and author's closure of a paper by W. A. Thomas published in the December 1936 issue, ...

The invention discloses a negative sequence reactance direction judging method for judging fault direction when asymmetrical faults occur in systems, ...

The negative-sequence currents depend on the characteristics of the IM, the voltage unbalance, and the loading level of the IM [18] [19] . Fig. 4 shows that the ...

The negative sequence reactance is the reactance of the line when there is an imbalance in the system, and one phase is producing more power than the others.