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Simulation load vibration test method of transformer

A technology for vibration testing and simulating loads, which is applied to instruments, measuring devices, and measuring ultrasonic/sonic/infrasonic waves, etc., to achieve the effects of easy upgrades, improved vibration performance indicators, and simple hardware structure

Inactive Publication Date: 2014-12-24
天津学子电力设备科技有限公司
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  • Abstract
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Problems solved by technology

This method needs to be carried out in the case of transformer power failure

Method used

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  • Simulation load vibration test method of transformer
  • Simulation load vibration test method of transformer
  • Simulation load vibration test method of transformer

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Embodiment Construction

[0013] Such as figure 1 As shown, the transformer simulation load test system used in the present invention is made up of a voltage regulator 1 for adjusting input voltage, an ICP sensor 9 for vibration testing, an acquisition card 8 for data acquisition and a computer 6 for data analysis, wherein the data acquisition The card 8 is connected to the computer 6 with a data cable 7 with a USB interface. The test object of this test system is composed of a SBH15-10 / 0.4 amorphous alloy core transformer 2 . The transformer load adopts the water resistance 3, and the voltage signal serially inserted into the sampling resistance 4 is extracted by using the oscilloscope 5. Change the resistance value of the water resistance to simulate different loads on the operating site.

[0014] Such as figure 2 As shown, the sensors 12 are arranged at the centers of phases a, b, and c corresponding to the low-voltage side of the surface of the oil tank 10, and the sensors 12 are also arranged a...

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Abstract

The invention relates to a simulation load vibration test method of a transformer. An ICP (integrated circuit piezoelectric) acceleration sensor, a data acquisition card, a computer and a data line are provided; the ICP accelerator sensor is used for testing vibration; the data acquisition card is used for simulating and converting data signals; the computer is used for receiving and analyzing data; the data line having a USB (universal serial bus) interface is used for connecting the computer and the data acquisition card. A test object transformer, a protective water resistor, a sampling resistor and an oscilloscope are further provided; the protective water resistor is used as a load; the sampling resistor is used for monitoring current; the oscilloscope is used for monitoring waveform. The method has the advantages that hardware structure is simple, a function of diagnostic analysis is mainly implemented by software, updating and maintenance are facilitated, and carrying is facilitated. Test results of the method allow running conditions of a transformer core with no power outage.

Description

technical field [0001] The invention belongs to the technical field of signal monitoring, and relates to a transformer simulation load vibration test method. Background technique [0002] At present, power users at home and abroad have continuously improved environmental requirements, and the vibration signal of transformers has become an important technical index for transformer equipment diagnosis and transformer noise reduction. The vibration of the transformer comes from the hysteresis expansion and contraction of the iron core and the electromotive force of the coil. It is mainly the vibration of the iron core, and also includes the vibration of various components caused by its vibration. To improve the vibration characteristics of the transformer, it is necessary to identify the vibration characteristics of key parts through vibration tests, so as to optimize the design of each component and make a correct evaluation of the operating conditions of each component. Ther...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01H11/06
Inventor 杜伯学刘道生韩涛郭亚光
Owner 天津学子电力设备科技有限公司
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