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Energy-storage spring damage status detector for circuit breaker of spring operating mechanism and detection method

A technology of state detection device and energy storage spring, which is applied in the direction of using sound wave/ultrasonic wave/infrasonic wave to analyze solids, etc., can solve the problems of circuit breaker power grid safety operation, damage of energy storage spring, detection of no energy storage spring, etc., to achieve ingenious design , Simple and convenient operation, simple structure

Active Publication Date: 2015-01-28
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the serious impact on the safe operation of the circuit breaker and the power grid due to the damage of the energy storage spring of the circuit breaker. However, there is no special detection device and method for the energy storage spring in the current prior art. To solve the problem of detecting the damage state, a device and method for detecting the damage state of the energy storage spring of the circuit breaker of the spring operating mechanism are provided

Method used

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  • Energy-storage spring damage status detector for circuit breaker of spring operating mechanism and detection method
  • Energy-storage spring damage status detector for circuit breaker of spring operating mechanism and detection method
  • Energy-storage spring damage status detector for circuit breaker of spring operating mechanism and detection method

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Embodiment 1

[0049] Example 1, see figure 1 , image 3 , Figure 4 , Figure 5 , Figure 8 , the present invention relates to an energy storage spring damage state detection device for a spring operating mechanism circuit breaker, which includes a signal transmitting system 1, a signal receiving system 2, an exciting coil 3, a receiving coil 4 and a host computer 5, and is equipped with two A NdFeB magnet 6, the signal transmitting system 1 is connected with the exciting coil 3, the signal receiving system 2 is connected with the receiving coil 4, and the signal transmitting system 1 and the signal receiving system 2 are connected with the upper computer 5.

[0050] see image 3 , the signal transmission system 1 described in this embodiment includes a square wave generating circuit 7, a drive circuit 8, an adjustable power supply 9, an H bridge 10, an overvoltage and overcurrent protection circuit 11, and a transmission impedance matching circuit 12, wherein the upper computer 5 The ...

Embodiment 2

[0059] Example 2, see figure 2 , image 3 , Figure 4 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , the present invention relates to an energy storage spring damage state detection device for a spring operating mechanism circuit breaker, comprising a signal transmitting system 1, a signal receiving system 2, a changeover switch 20, an excitation and receiving integrated coil 21, and a host computer 5, and equipped with There is a neodymium iron boron magnet 6, and the excitation and receiving integrated coil 21 is connected with the changeover switch 20, and the changeover switch 20 is respectively connected with the signal transmitting system 1 and the signal receiving system 2 correspondingly, and the signal transmitting system 1 and the signal receiving system 2 are connected with each other. The upper computer is connected with 5 phases.

[0060] see image 3, the signal transmission system 1 described in this embodiment includes a square wave gen...

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Abstract

The invention discloses an energy-storage spring damage status detector for a circuit breaker of a spring operating mechanism and a detection method, and belongs to the field of electromagnetic ultrasonic non-destructive testing. The energy-storage spring damage status detector comprises a signal transmitting system, a signal receiving system, an upper computer, an Nd-Fe-B magnet, and an excitation-receiving integrated coil or excitation-receiving separated coils, wherein the signal transmitting system generates sine wave excitation signals to the excitation coil or the excitation-receiving integrated coil; the sine wave excitation signals are converted to ultrasonic signals through the coil under action of the magnetic field; the ultrasonic signals are transmitted along the energy-storage spring and reflected at the damaged position of the energy-storage spring wire; the reflected ultrasonic waves are converted to electric signals through the receiving coil or the excitation-receiving integrated coil in the magnetic field environment, and then received by the signal receiving device; the electric signals are transmitted to the upper computer; at last, the upper computer analyzes and judges the fault and the faulted position of the energy-storage spring. When the energy-storage spring damage status detector disclosed by the invention is used for detection, the circuit breaker is not required to quit operation, so as to lower the workload and facilitate the operation to be simple and convenient.

Description

technical field [0001] The invention relates to a detection device and method for detecting the damage state of an energy storage spring of a running spring operating mechanism circuit breaker under a non-action working condition based on an electromagnetic ultrasonic method. Background technique [0002] In recent years, with the vigorous development of my country's electric power industry, circuit breakers have been widely used in power systems. In the spring operating mechanism of the circuit breaker, the quality of the energy storage spring is directly related to the normal operation of the spring operating mechanism, so the energy storage spring plays a very important role in the operation performance of the entire circuit breaker and even the operation performance of the entire power grid. . At present, the energy storage spring may be damaged due to two reasons. On the one hand, when the energy storage spring leaves the factory, there are dents on the surface of the ...

Claims

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Application Information

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IPC IPC(8): G01N29/04
Inventor 冯光亮曾国贺攀周文俊严国志李鹏飞代文芳余卫民吕亮熊国友刘斌
Owner STATE GRID CORP OF CHINA
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