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Device and method for generator rotor winding turn-to-turn insulation fault diagnosis

A fault diagnosis device and generator rotor technology, applied in the field of power system, to achieve the effect of wide application range, high test sensitivity, simple and reliable operation process

Inactive Publication Date: 2016-04-27
SUZHOU NUCLEAR POWER RES INST +2
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Problems solved by technology

[0014] The purpose of the present invention is to provide a fast, accurate and adaptable detection method for the problems of testing convenience, testing sensitivity and work efficiency, fault diagnosis and analysis ability and applicable occasions in the existing generator rotor diagnosis method. Electronic rotor winding turn-to-turn insulation fault diagnosis device and method to overcome the defects in the prior art

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  • Device and method for generator rotor winding turn-to-turn insulation fault diagnosis
  • Device and method for generator rotor winding turn-to-turn insulation fault diagnosis
  • Device and method for generator rotor winding turn-to-turn insulation fault diagnosis

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Embodiment Construction

[0032] The present invention aims at the problems of convenience, test sensitivity, work efficiency, fault diagnosis and analysis ability and applicable occasions in the measurement technology of the generator rotor winding in the prior art, and provides a fast, accurate and adaptable generator sub-rotor winding Inter-turn insulation fault diagnosis device and method to overcome the defects in the prior art. By applying an appropriate excitation signal to the generator rotor, and then collecting the corresponding feedback, using the characteristics of the feedback signal, the location, type, degree and development trend of the fault are calculated to solve the defects in the existing technology.

[0033] The present invention will be analyzed in detail below in conjunction with the accompanying drawings and specific embodiments.

[0034] like figure 1 Shown is a schematic diagram of system connection of a generator rotor winding turn-to-turn insulation fault diagnosis device ...

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Abstract

The invention relates to a device and a method for generator rotor winding turn-to-turn insulation fault diagnosis. The device is used for detecting a rotor winding, and comprises a signal generator and a data acquisition card electrically connected with two ends of the rotor winding respectively, wherein the data acquisition card is also in communication connection with a computer; the signal generator sends an excitation signal to the rotor winding; the data acquisition card receives a feedback signal and sends the signal to the computer; and the computer deduces the fault of the rotor winding according to the feedback signal. Thus, the operation process is simple, convenient and reliable, and the test efficiency and the test accuracy for the generator rotor winding turn-to-turn insulation fault diagnosis can be improved.

Description

technical field [0001] The invention relates to the technical field of power systems, and more specifically, to a device and method for diagnosing an inter-turn insulation fault of a rotor winding of a generator. Background technique [0002] The turn-to-turn insulation fault of the generator rotor winding is one of the main factors causing the electrical insulation accident of the rotor. Research and implementation of generator rotor turn-to-turn insulation fault detection and diagnosis, especially for the discovery of incipient faults, is of great significance for optimizing the maintenance and operation plan of the rotor and improving the reliability of generator equipment. At present, there are some detection methods for inter-turn insulation faults of generator rotor windings, such as AC impedance and power loss method, DC resistance method, differential coil detection method, no-load and short-circuit characteristic test method, etc. However, these methods have certai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/06G01R31/12
Inventor 黄立军瞿勐米贤才关建军江虹凌霜寒
Owner SUZHOU NUCLEAR POWER RES INST
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