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Automatic Measuring System and Working Method of Motor Thermal Resistance

A resistance measurement and automatic measurement technology, which is applied in the direction of measuring devices, measuring electrical variables, measuring resistance/reactance/impedance, etc., can solve the problem of not correctly reflecting the temperature rise of motor windings, affecting the personal safety of testers, and inaccurate inference of winding temperature rise and other issues, to achieve the effect of increasing test safety, reducing labor intensity, and making measurement work simple and easy

Active Publication Date: 2017-12-26
ZHUZHOU CSR TIMES ELECTRIC CO LTD
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is the defect in the measurement method of thermal resistance in the motor temperature rise test in the prior art: when the motor stops, the requirements for timing and equipment coordination are very high, and this method is a manual measurement method , in the test process, usually more than four people are required to operate at the same time, the test error caused by human beings is extremely large, which often leads to inaccurate inference of the temperature rise of the winding, which cannot correctly reflect the temperature rise of the motor winding, and also affects the personal safety of the test personnel ; In addition, for high-power motor temperature rise test, the loss caused by long-term temperature rise error must be included in the cost consideration

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  • Automatic Measuring System and Working Method of Motor Thermal Resistance
  • Automatic Measuring System and Working Method of Motor Thermal Resistance
  • Automatic Measuring System and Working Method of Motor Thermal Resistance

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Embodiment Construction

[0042] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings and examples, so as to fully understand and implement the process of how to apply technical means to solve technical problems and achieve technical effects in the present invention. It should be noted that, as long as there is no conflict, each embodiment and each feature in each embodiment of the present invention can be combined with each other, and the formed technical solutions are all within the protection scope of the present invention.

[0043] In order to solve the defects of the measurement method of thermal resistance in the motor temperature rise test in the prior art: 1) the measurement method is a manual measurement method (automatic solution has not yet appeared), and human errors are prone to occur in the test process, resulting in The test data is inaccurate or the test fails; the test process usually requires more than four people t...

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Abstract

The invention discloses an automatic measurement system for the thermal resistance of a motor and its working method. Using the automatic measurement system for the thermal resistance of a motor provided by the embodiment of the invention, the measurement of the thermal resistance of the entire motor can be completed through automatic control, so that the test The measurement work of personnel is easier and easier; in addition, during the measurement process, the test will not fail due to inaccurate timing or reading due to human factors, which improves the measurement accuracy and prevents the test personnel from performing tests next to the high-speed rotating machinery The phenomenon greatly increases the safety of the experiment.

Description

technical field [0001] The invention relates to the technical field of motor testing, in particular to an automatic measurement system for thermal resistance of a motor, and also relates to a working method of the automatic measurement system for thermal resistance of a motor. Background technique [0002] In standards such as GB / T 25123.2, IEC 60349-4 and TB / T 1704, the temperature rise test of the motor is a must-do item, and its temperature rise is directly related to the performance of a motor. Therefore, it is necessary to accurately measure the temperature rise of the winding Very important. In the relevant standards, the measurement method of temperature rise is also clearly explained. The temperature rise measurement method (resistance method) usually adopted in the industry includes the following steps: (1) turn off the cooling air; (2) cut off the power supply of the test motor; (3) Reduce the speed of the motor under test, and at the same time, one person is requ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R27/02
Inventor 邱宇清谭昭程浩杨琦
Owner ZHUZHOU CSR TIMES ELECTRIC CO LTD
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