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Electronic current transformer one-time coupling vibration test device and method thereof

A technology of current transformer and vibration test, which is applied in the direction of vibration test, measuring device, machine/structural component test, etc. It can solve the problems of large size, inoperability, and high price of circuit breakers, so as to ensure safe operation, Avoid the effect of relay protection misoperation, avoid influence and damage

Active Publication Date: 2013-12-11
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] According to the requirements of GB / T 20840.8-2007, the electronic current transformer should be subjected to a primary coupling vibration test with the circuit breaker. Operability

Method used

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  • Electronic current transformer one-time coupling vibration test device and method thereof

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Embodiment 1

[0030] The primary coupling vibration test of the electronic current transformer of the present invention is completed by the following device: the device includes a control host 100, a converter 110, a vibration generator 120, a vibration transmission rod 130, a primary guide rod 140, an electronic type to be tested Current transformer 150, merging unit 160, test analysis host 170, height adjustable support, wherein the control host 100 is connected to the converter 110, and the converter 110 is connected to the vibration generator 120 through a signal line, the The vibration generator 120 is located on the support 180, and transmits the vibration to the primary guide rod 140 through the vibration transmission rod 130, thereby realizing the vibration influence on the electronic current transformer 150 to be tested on the primary guide rod 140. , the test analysis host is connected to the merging unit 160 to analyze the waveform signal.

[0031] Among them, the control host: u...

Embodiment 2

[0040] Specifically, the test method using the primary coupling vibration test device of the electronic current transformer according to the present invention

[0041] Step 1. Connect the test equipment and the test product as shown in the figure above. The test product is in a normal working state. Select the voltage level of the electronic current transformer to be tested on the control host, and select the output mode to open;

[0042] Step 2. When the control host starts to trigger, the test and analysis host starts to record waves and record the output status of the merging unit;

[0043] Step 3. After the vibration is over, analyze the output data within 10s from the start of the vibration to the end of the vibration through the test and analysis host. If the root mean square value of the output in each cycle is less than 3% of the rated output, and there is no damage during the vibration process , communication interruption, packet loss, quality change, pass the test, o...

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PUM

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Abstract

The invention discloses an electronic current transformer one-time coupling vibration test device and a method thereof. The test device comprises a control host computer, a converter, a vibration generator, a vibration transmission rod, a one-time guide rod, an electronic current transformer to be tested, a merging unit, a test analysis host computer and a support. The control host computer is connected with the converter, the converter is connected with the vibration generator through a signal line, the vibration generator is arranged on the support and transmits vibration to the one-time guide rod through the vibration transmission rod, and the test analysis host computer is connected with the merging unit for analyzing wave signals. Through the device, the influence of vibration from a breaker on the electronic current transformer can be simulated, the test purpose is achieved, and the influence on the breaker and the damage to the breaker are avoided.

Description

technical field [0001] The invention relates to a vibration test of an electronic current transformer, in particular to a primary coupling vibration test device for an electronic current transformer and a test method thereof. Background technique [0002] With the proposal of the State Grid Corporation to build a strong smart grid, various equipment used in the power system is developing in the direction of intelligence, and electronic transformers are being widely used in the power system due to their advantages. The smart substation is an important part of the smart grid, and the application of electronic current transformers is one of the important signs of the intelligence of the primary equipment of the smart substation. The rapid development of smart substations has promoted the progress of the practicality and productization of electronic transformers. [0003] Compared with traditional transformers, electronic current transformers have more components and are more s...

Claims

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Application Information

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IPC IPC(8): G01M7/02
Inventor 张勤叶国雄郭克勤胡蓓黄华刘彬童悦刘翔万罡冯翔翔邬文亮陈鹏杨帆邓小聘王焱王晓周代静汪英英熊俊军刘勇
Owner STATE GRID CORP OF CHINA