CN102097244A - Arc plate of partial-discharge sensor box for detecting ultrahigh frequency electromagnetic wave signals - Google Patents

Abstract

The partial discharge ultra-high frequency electromagnetic wave signal detection sensor box arc plate includes an arc plate gasket, a central hole, a countersunk head screw and an arc plate main body. The arc plate main body is the main part of the present invention, which is an upwardly curved arc plate as a whole, and an arc plate gasket is arranged in the middle of the upper surface of the arc plate main body. The main body of the arc plate and the gasket of the arc plate are connected together by four countersunk screws, and a central hole through which the arc plate is connected up and down is arranged at the center position of the gasket and the main body of the arc plate. The central hole is set in the form of a perfect circular hole. The four countersunk screws used to connect the arc plate gasket and the arc plate body can be screwed in from the top of the arc plate gasket or from the bottom of the arc plate body. After screwing in, the countersunk head Both ends of the screw should be sunken, and there should be no protrusion, so as not to affect the specific operation of the device during use. The present invention has simple overall structure and convenient operation and use, which is beneficial for the sensor to be closer to the outer edge of the GIS disc insulator, and is beneficial for improving the sensor's ability to receive ultra-high frequency electromagnetic wave signals in the GIS cavity.

Description

Partial discharge UHF electromagnetic wave signal detection sensor box arc plate

technical field

The invention relates to the outer box structure of the receiving device of the partial discharge fault UHF electromagnetic wave signal of the gas insulated switchgear (GIS), in particular to the arc plate of the partial discharge UHF electromagnetic wave signal detection sensor box.

Background technique

At present, gas insulated switchgear (GIS) partial discharge detection has been widely used in the power industry. The detection first needs to use the sensor to detect the UHF electromagnetic wave of the GIS. The sensor needs to be close to the outer edge of the GIS disc insulator. Since the outer edge of the disc insulator is circular and has a certain radian, the general sensor box is One surface of the plate is close to the outer edge of the disc insulator, the sensor does not fit well with the disc insulator, and it is unstable. At the same time, the external electromagnetic signal will enter the sensor along the arc surface or the close surface of the sensor, which is not conducive to improving the sensor. sensitivity. Chinese patent 200910021728 discloses "an external GIS partial discharge ultra-high frequency monitoring sensor"; Chinese patent 94113338 discloses a "sensing method and sensor for detecting partial discharge of gas-insulated composite electrical appliances". However, the sensor outer boxes recorded in the existing public materials do not have arc-shaped plates, and cannot effectively be close to the outside of the GIS disc insulator.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies of the prior art and provide a partial discharge ultra-high frequency electromagnetic wave signal detection sensor box arc plate, which is conducive to the sensor being better close to the outer edge of the GIS disc insulator, preventing the sensor from shaking or Sliding also has the effect of blocking external electromagnetic interference, which is conducive to improving the sensitivity of the sensor.

The partial discharge ultra-high frequency electromagnetic wave signal detection sensor box arc plate of the present invention includes an arc plate gasket, a central hole, a countersunk screw and an arc plate main body. The arc plate main body is the main part of the present invention, which is an upwardly curved arc plate as a whole, and an arc plate gasket is arranged in the middle of the upper surface of the arc plate main body. The main body of the arc plate and the gasket of the arc plate are connected together by four countersunk screws, and a central hole through which the arc plate is connected up and down is arranged at the center position of the gasket and the main body of the arc plate. Said central hole is set in the form of a perfect circular hole. The four countersunk screws used to connect the arc plate gasket and the arc plate body can be screwed in from the top of the arc plate gasket or from the bottom of the arc plate body. After screwing in, the countersunk head Both ends of the screw should be sunken, and there should be no protrusion, so as not to affect the specific operation of the device during use.

The partial discharge ultra-high frequency electromagnetic wave signal detection sensor box arc plate of the present invention has a simple overall structure and is easy to operate and use, which is beneficial for the sensor to be better close to the outer edge of the GIS disc insulator, preventing the sensor from shaking or sliding, and at the same time blocking the outside world The effect of electromagnetic interference is conducive to improving the sensitivity of the sensor, and especially solves the problem that the outer box of the sensor cannot be effectively close to the outer side of the GIS disc insulator according to the prior art. Because the arc plate has a certain function of blocking external electromagnetic interference signals, it is beneficial to improve the sensor's ability to receive ultra-high frequency electromagnetic wave signals in the GIS cavity.

Description of drawings:

Accompanying drawing 1 is the structure schematic diagram of the top view state of the partial discharge UHF electromagnetic wave signal detection sensor box arc plate of the present invention; Accompanying drawing 2 is the structure schematic diagram of the head view state. 1—Arc plate gasket 2—Center hole 3—Function head screw 4—Arc plate main body

Detailed ways:

Now referring to accompanying drawing 1 and accompanying drawing 2, in conjunction with embodiment description is as follows: Partial discharge UHF electromagnetic wave signal detection sensor box arc plate of the present invention includes arc plate gasket 1, central hole 2, countersunk head screw 3 It is composed of the main body 4 of the arc plate. The arc plate main body 4 is the main body of the present invention, which is an upwardly curved arc plate as a whole, and an arc plate gasket 1 is arranged in the middle of the upper surface of the arc plate main body 4 . The arc plate main body 4 and the arc plate gasket 1 are connected together by four countersunk screws 3 , and at the center position of the arc plate gasket 1 and the arc plate main body 4 , a central hole 2 penetrating up and down is provided. Said central hole 2 is set in the form of a perfect circular hole. The four countersunk screws 3 used to connect the arc plate gasket 1 and the arc plate main body 4 can be screwed in from the top of the arc plate gasket 1 or screwed in from the bottom of the arc plate main body 4. After the countersunk screw 3 is inserted, both ends should sink in without any protrusion, so as not to affect the specific operation during the use of the equipment. The partial discharge ultra-high frequency electromagnetic wave signal detection sensor box arc plate of the present invention has a simple overall structure and is easy to operate and use, which is beneficial for the sensor to be better close to the outer edge of the GIS disc insulator, preventing the sensor from shaking or sliding, and at the same time blocking the outside world The effect of electromagnetic interference is conducive to improving the sensitivity of the sensor, and especially solves the problem that the outer box of the sensor cannot be effectively close to the outer side of the GIS disc insulator according to the prior art. Because the arc plate has a certain function of blocking external electromagnetic interference signals, it is beneficial to improve the sensor's ability to receive ultra-high frequency electromagnetic wave signals in the GIS cavity.

Claims (1)

1. Partial discharge ultra-high frequency electromagnetic wave signal detection sensor box arc plate, which is characterized in that the arc plate body (4) is an arc-shaped plate that is curved upward as a whole, and an arc plate pad is arranged on the upper center of the arc plate body (4) (1); the arc plate body (4) and the arc plate gasket (1) are connected together by four countersunk screws (3), at the center position of the arc plate gasket (1) and the arc plate body (4) , and a central hole (2) penetrating up and down is provided.

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