Method for detecting turn-to-turn short circuit fault of stator winding of generator
A technology of inter-turn short circuit fault and generator stator, which is applied in the detection field, can solve problems such as ground short circuit fault and short circuit current increase, and achieve the effect of easy maintenance and repair
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[0020] In order to illustrate the specific operation process of the detection method of the present invention more accurately and clearly, the applicant explained the principle, implementation process and calculation method of the detection method of the present invention in conjunction with the accompanying drawings. The specific implementation process disclosed below is only illustrative, and does not constitute a particular limitation to the present invention.
[0021] In the following, the symbols of each technical vocabulary adopt the standard usage in this field, and the corresponding meanings of the symbols are respectively I a , I b , I c is the phase current value measured in each phase; f(α m ,, t) is the air gap magnetic potential during normal operation; F r Main magnetic potential, F s is the armature reaction magnetic potential, F 1 For the synthetic magnetic potential, ω=2πf r is the rotor mechanical angular frequency, f r is the mechanical frequency of t...
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