Conductive slip ring fault test device and test method

Abstract

Provided are a conductive slip ring fault test device and a test method. The test device is electrically connected with the conductive slip ring to form a test loop, wherein the test device comprises a constant current generating circuit which provides a first constant current for the test loop when the test device is in a contact resistance test pattern, an acquisition system determining voltage values of two ends of the conductive slip ring when the first constant current flows through the conductive slip ring, a processor determining a contact resistance value of the slip ring in the first constant current based on the voltage values and comparing the contact resistance with the first resistance threshold value, wherein when the contact resistance value is no less than the first resistance threshold value, the result information indicating that the conductive slip ring is already faulty is sent and when the contact resistance value is smaller than the first resistance threshold value, the result information indicating that the conductive slip ring works normally is sent. According to the test device and method, the conductive slip ring fault is capable of being found timely and therefore the problem of being difficult in conductive slip ring fault detection on the spot is solved.

Description

technical field [0001] The present invention generally relates to the field of maintenance of components of wind power generating equipment, and more specifically relates to a conductive slip ring fault testing device and testing method. Background technique [0002] The conductive slip ring is used as the channel connecting the wind turbine pitch system and the main control system, and is used to connect the power supply line, communication line and safety link of the wind turbine pitch system with the engine room to transmit the main control system and the main control system. Communication signals between the blade pitch systems of wind turbines. [0003] Based on the above functions of the conductive slip ring, the stability and reliability of the conductive slip ring directly affect the stability and reliability of the operation of the wind turbine. Since the conductive slip ring is a rotatable wire, long-term wear and tear will inevitably lead to an increase in the co...

AI Technical Summary

Problems solved by technology

[0004] An exemplary embodiment of the present invention is to provide a conductive slip ring fault testing device and testing method for solving the problem of difficult field conductive slip ring fault detection

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