CN203349934U - GIS equipment contact temperature monitoring test apparatus - Google Patents

Abstract

The utility model provides a GIS equipment contact temperature monitoring test device, which includes a conductor, a conductor plug contact seat, a test tank body, a sleeve, a flange and a movable support; the sleeve includes a first sleeve and a second sleeve. Sleeve, the conductor is inserted into the conductor plug contact seat, and placed in the test tank, the outer tank wall of the test tank is sequentially installed with the first sleeve, the flange and the second sleeve from top to bottom; The movable bracket supports the device through an adjustable support rod to realize flexible movement. In the utility model, the test tank body applies current through the casing, and changes the temperature of the detected part by changing the contact resistance value of the dynamic and static contacts or adjusting the magnitude of the applied current, so as to perform infrared temperature measurement and thermocouple temperature measurement. In addition, the gas composition and density in the test tank can be changed through the inflatable joint to determine the influence of the gas insulating medium on the infrared temperature measurement. The device has a simple structure and is easy to install.

Description

A GIS equipment contact temperature monitoring test device

technical field

The utility model belongs to the technical field of power transmission and transformation equipment, in particular to a GIS equipment contact temperature monitoring test device.

Background technique

GIS equipment is more and more applied to the power system due to its many advantages such as less maintenance workload, small footprint, and high reliability. However, once a failure occurs, the maintenance cost is high and the cycle is long, which seriously affects the normal operation of the power grid. As an important means of power system fault diagnosis, monitoring is beneficial to discover the initial faults of GIS equipment, prevent accidents from expanding, and provide further guarantee for the normal operation of GIS equipment. Excessive GIS load current, loose connection parts, improper closing of switches or wear of contacts may cause excessive temperature rise of conductive parts. Real-time monitoring of hot spot temperature of high-voltage equipment can improve the safe operation of equipment and extend the insulation life of equipment. It is of very practical significance to judge the load capacity of the equipment in time to improve the economic benefits of the equipment and reduce the burden on personnel.

Commonly used temperature measurement methods on high-voltage switchgear include ordinary temperature measurement, infrared temperature measurement, fiber grating temperature measurement and wireless temperature measurement. Since GIS is a fully enclosed device, in view of its insulation, sealing and service life and many other requirements, it makes Ordinary temperature measurement methods, fiber grating temperature measurement methods and conventional wireless temperature measurement methods cannot be applied to online temperature measurement of GIS contacts. At present, scholars at home and abroad have only done research on infrared radiation detection technology and infrared thermal diagnosis technology, and have not yet Field application, and its reliability, measurement accuracy, and influencing factors must be studied in depth. In view of the above considerations, it is urgent to develop a test device for the comparison of temperature detection and research of GIS equipment, and to conduct comparative research on different temperature monitoring methods.

Utility model content

In order to overcome the deficiencies of the prior art above, the utility model provides a GIS equipment contact temperature monitoring test device, the test tank applies current through the bushing, changes the contact resistance of the dynamic and static contacts or adjusts the magnitude of the applied current The method is to change the temperature of the detected part for infrared temperature measurement and thermocouple temperature measurement, and change the gas composition and density in the test tank through the inflatable joint to determine the influence of the gas insulating medium on the infrared temperature measurement. The structure of the device is simple, Easy to install.

In order to achieve the above object, the utility model takes the following scheme:

A GIS equipment contact temperature monitoring test device is provided, the device includes a conductor, a conductor plug contact seat, a test tank, a sleeve, a flange and a movable support; the sleeve includes a first sleeve and a second Sleeve, the conductor is inserted into the conductor plug contact seat, and placed in the test tank, the outer tank wall of the test tank is sequentially installed with the first sleeve, the flange and the second sleeve from top to bottom; The movable stand supports the device via adjustable support rods.

The first bushing and the second bushing are respectively installed on the test tank through connecting pieces.

The flange includes a first flange and a second flange, and the first flange and the second flange are arranged symmetrically on the outside of the test tank corresponding to the connection between the conductor and the conductor socket.

The conductor is a detachable conductive rod, and a thermocouple is arranged on the detachable conductive rod, and the thermocouple is connected to the monitor through the first flange.

The upper part of the test tank body is provided with an end cover, and the end cover is installed on the top of the test tank body through a sealing ring.

An infrared glass test window is installed on the outer tank wall of the test tank where the second flange is installed, and the infrared temperature sensor is installed outside the infrared glass test window through the second flange, and is connected to an external monitoring system at the same time.

The inflating device is connected to the inflation joint provided on the lower part of the outer tank wall of the test tank through the pipe fitting tee to charge and discharge the insulating gas inside the test tank; the other end of the pipe fitting tee is equipped with a pressure gauge.

Compared with the prior art, the utility model has the beneficial effects of:

1. The test tank applies current through the casing, and changes the temperature of the detected part by changing the contact resistance value of the dynamic and static contacts or adjusting the magnitude of the applied current to perform infrared temperature measurement and thermocouple temperature measurement;

2. Change the gas composition and density in the test tank through the inflatable joint, conduct comparative research on infrared temperature measurement and thermocouple temperature measurement, and determine the influence of insulating media on infrared temperature measurement;

3. The easy-to-detachable conductive rod can be installed and replaced through the end cover, so as to carry out infrared temperature measurement research with different radiation ratios such as different materials and different resistance values;

4. The device can be flexibly moved through the movable bracket, which is convenient for detection, simple in structure and easy to install.

Description of drawings

Fig. 1 is the structural diagram of the GIS equipment contact temperature monitoring test device in the utility model embodiment;

Among them, 1-first bushing, 2-conductor, 3-infrared glass test window, 4-second flange, 5-test tank, 6-inflatable joint, 7-end cover, 8-movable bracket, 9 - Second casing.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail.

As shown in Figure 1, a GIS equipment contact temperature monitoring test device is provided. The device includes a conductor 2 (simulating the moving contact of the isolating switch), a conductor plug contact seat (simulating the static contact of the isolating switch), a test tank body 5, Sleeve, flange and movable bracket 8; the sleeve includes a first sleeve 1 and a second sleeve 9, the conductor 2 is inserted into the conductor socket, and placed in the test tank 5, The outer tank wall of the test tank 5 is sequentially installed with the first casing 1 , the flange and the second casing 9 from top to bottom; the movable bracket 8 supports the device through an adjustable support rod.

The first bushing 1 and the second bushing 9 are respectively installed on the test tank body 5 through connecting pieces.

The flange includes a first flange and a second flange 4, and the first flange and the second flange 4 are symmetrically arranged on the outside of the test tank body 5 corresponding to the connection between the conductor 2 and the conductor socket. .

The conductor 2 is a detachable conductive rod, and a thermocouple is arranged on the detachable conductive rod, and the thermocouple is connected to a monitor through the first flange for thermocouple temperature measurement and monitoring.

The upper part of the test tank body 5 is provided with an end cover 7, and the end cover 7 is installed on the top of the test tank body 5 through a sealing ring.

The outer tank wall of the test tank body 5 is equipped with an infrared glass test window 3 at the second flange 4, and the infrared temperature sensor is installed on the outside of the infrared glass test window 3 through the second flange 4, and it is connected to the external Monitoring system for infrared temperature measurement monitoring.

The inflating device is connected to the inflation joint 6 provided at the lower part of the outer tank wall of the test tank body 5 through a pipe fitting tee to charge and discharge the insulating gas inside the test tank body 5; a pressure gauge is installed at the other end of the pipe fitting tee, and the internal insulation of the test tank body 5 The rated pressure of the gas is 0.6MPa.

In summary, in the utility model, the test tank body applies current through the bushing, and changes the temperature of the detected part by changing the contact resistance value of the dynamic and static contacts or adjusting the magnitude of the applied current to perform infrared temperature measurement. The thermocouple measures the temperature, and changes the gas composition and density in the test tank through the inflatable joint to determine the influence of the gas insulating medium on the infrared temperature measurement. The device has a simple structure and is easy to install.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and not to limit them. Although the present utility model has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: it is still possible Any modification or equivalent replacement made to the specific implementation of the present utility model without departing from the spirit and scope of the present utility model shall be covered by the claims of the present utility model.

Claims (7)

1. A GIS equipment contact temperature monitoring test device is characterized in that: the device includes a conductor, a conductor plug contact seat, a test tank, a sleeve, a flange and a movable support; the sleeve includes a first The sleeve and the second sleeve, the conductor is inserted into the conductor plug contact seat, and placed in the test tank, the outer tank wall of the test tank is sequentially installed with the first sleeve, flange and Second sleeve; said movable stand supporting said device via an adjustable support rod. 2. The GIS equipment contact temperature monitoring test device according to claim 1, characterized in that: the first bushing and the second bushing are respectively installed on the test tank body through connecting pieces. 3. The GIS equipment contact temperature monitoring test device according to claim 1, characterized in that: the flange includes a first flange and a second flange, and the first flange and the second flange are arranged symmetrically The outer side of the test tank corresponding to the connection between the conductor and the conductor socket. 4. The GIS equipment contact temperature monitoring test device according to claim 3, characterized in that: the conductor is a detachable conductive rod, and a thermocouple is arranged on the detachable conductive rod, and the thermocouple passes through the first A flange connection monitor. 5. The GIS equipment contact temperature monitoring test device according to claim 2 or 3, characterized in that: the upper part of the test tank is provided with an end cover, and the end cover is installed on the top of the test tank through a sealing ring . 6. The GIS equipment contact temperature monitoring test device according to claim 2 or 3, characterized in that: the outer tank wall of the test tank is provided with an infrared glass test window where the second flange is installed, and the infrared temperature sensor It is installed on the outside of the infrared glass test window through the second flange, and it is connected to an external monitoring system at the same time. 7. The GIS equipment contact temperature monitoring test device according to claim 1, characterized in that: the inflation device is connected to the inflation joint provided at the lower part of the outer tank wall of the test tank body through a pipe fitting tee, so as to fill the insulating gas inside the test tank body. put; the other end of the pipe fitting tee is installed with a pressure gauge.

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