KR101692638B1 - Cable connector for detecting deterioration of cross link self-contraction type - Google Patents

Cable connector for detecting deterioration of cross link self-contraction type Download PDF

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Publication number
KR101692638B1
KR101692638B1 KR1020150128590A KR20150128590A KR101692638B1 KR 101692638 B1 KR101692638 B1 KR 101692638B1 KR 1020150128590 A KR1020150128590 A KR 1020150128590A KR 20150128590 A KR20150128590 A KR 20150128590A KR 101692638 B1 KR101692638 B1 KR 101692638B1
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South Korea
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signal
unit
deterioration
connection material
potential difference
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KR1020150128590A
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Korean (ko)
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김장호
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주식회사 건원
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
    • G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
    • G01R31/1254—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of gas-insulated power appliances or vacuum gaps
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
    • G01R31/1209—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing using acoustic measurements
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • G08B21/182—Level alarms, e.g. alarms responsive to variables exceeding a threshold
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C19/00—Electric signal transmission systems
    • G08C19/02—Electric signal transmission systems in which the signal transmitted is magnitude of current or voltage

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Testing Relating To Insulation (AREA)

Abstract

The present invention relates to a cable connection material to diagnose crosslink self-contraction type deterioration. According to the present invention, a deterioration diagnostic means comprises: a sensor signal measurement unit (100) to measure a detection signal from a temperature patch (103) and a potential difference patch (104) attached to a sleeve of the connection material (101); a signal conversion unit (200); a wireless communication/interface unit (300); a memory (400); a control unit (500); an alarm unit (600) to sound an alarm according to operation control of the control unit (500) when a measurement value goes out from a normal temperature and potential difference range according to a determination result of the control unit (500); a display unit (700) to display a deterioration state of the connection material according to the operation control of the control unit (500) when the measurement value goes out from the normal temperature and potential difference range according to the determination result of the control unit (500); and a power supply unit (800) to supply required power to a deterioration diagnostic apparatus. Thus, partial discharge (PD) in a gas insulation switch (GIS) with respect to a power transmission line is analyzed to diagnose deterioration of the cable connection material, so replacement costs of the power transmission line and a construction time are reduced, failure of the connection material and incorrect construction are prevented, and construction is simple. Moreover, due to a simple configuration, a price of the deterioration diagnostic apparatus of the self-contraction type cable connection material is lowered and a long life cable connection material to diagnose crosslink self-contraction type deterioration, capable of being stably used for a long time without failure, can be provided.

Description

Technical Field [0001] The present invention relates to a cross link self-shrinkable deterioration diagnostic cable connecting member,

More particularly, the present invention relates to a cable connection material having deterioration diagnosis means, and more particularly, to a method of detecting a partial discharge (PD) in a gas insulated switchgear (GIS) for a transmission line, a high frequency (VHF to UHF The invention relates to a cross link self-shrinkable deterioration diagnostic cable connection material which can easily diagnose deterioration of a cable connection port by analyzing a partial discharge by collecting data of an inverted tuning frequency mapping structure by a spectro meter of a region.

As we all know, electricity is an essential energy for life that is used throughout various industrial fields. It uses two strands of wires to use electricity. It cuts wires as an essential means in the process of using wires, It is inevitable to use it.

A method of connecting two wires in a conventional manner as described above is as follows. The wire is peeled off with a tool such as a stripper at the end of the wire, and the two strands are twisted with each other such as + and - And the connecting work was completed. A separate synthetic resin insulation cap was placed on the insulating tape to connect the wires.

In such a case, the cable connection site is not clean, and it takes a lot of time to cover the tape when the cable is connected and to cover the synthetic resin insulation cap.

In addition, there has been a lot of clogs such as peeling of the synthetic resin insulation cap at the connection portion or loosening of the tape due to shortening of the connection portion or short circuit at the connection portion by the tape and the synthetic resin insulation cap over time.

In order to solve the above-mentioned disadvantages, a connector for connecting a wire is commercially available. Typically, a synthetic resin insulator cover having a turn piece formed on the outer circumferential surface thereof is provided with a fastening coil. When the two wires are connected, And is fastened and fixed by a coil.

In the case of such a configuration, it is possible to maximize the speed accuracy and reliability according to the wire connection.

However, since the coupling coil is directly built into the synthetic resin insulation cover having the protruding piece formed on the outer circumferential surface with the synthetic resin as described above, when the two coupling wires are connected, the coupling coil is inflated and the synthetic resin insulation cover is damaged Or when the wire connection portion is pressed from the outside, the synthetic resin insulation cover and the fastening coil are damaged.

As a conventionally developed technology in view of the above-described circumstances, Japanese Patent No. 1032733 discloses a " connector for wire connection "

As shown in FIG. 1 and FIG. 2, the connector for wire connection of the above-mentioned Japanese Patent No. 1032733 includes a fastening coil 1, a metal protective cap 10, a projecting piece 30, And a synthetic resin insulation cover 20 in which a protruding protrusion 31 is formed. The main body 2 of the coupling coil 1 is threaded so that the connected portion of the wire is twisted, And the head portion 3 is formed in a rectangular shape so as not to rotate when the metal cap is coupled to the metal protective cap so that a head portion And the lower portion of the coupling coil is engaged with the lower end of the metal protection cap 10 so that the coupling coil is not pulled out from the metal protection cap 10. The coupling coil 1, The upper portion of the metal protective cap 10, which is loaded, is connected to the synthetic resin insulation cover 20 The metal protection cap 10 is formed on the upper side of the synthetic resin insulation cover 20 so as to have the same shape as the head of the metal protection cap, The synthetic resin insulation cover and the fastening coil can be prevented from being damaged by internal and external pressures.

However, the "connector for wire connection" of the above-mentioned Japanese Patent No. 1032733 does not have a means for diagnosing deterioration of the connector for wire connection deteriorated due to use for a long period of time, that is, deterioration of connection material, line aging, The degree of deterioration of the connector can not be easily measured.

Also, as a conventional technique, a "power cable connecting device" of Patent Publication No. 2014-0062930 is disclosed in the patent document (refer to Patent Document 2).

As shown in FIG. 3, the "power cable connecting device" of the above-mentioned Patent Publication No. 2014-0062930 has a ball 11 at one end and a wire 15 inserted at the other end and fixed by a bolt 15 A first connecting means 10 having a wire insertion portion 13 and a ball engaging portion 21 which is inserted into the ball 11 of the first connecting means 10 so as to be rotatable And a second connecting means 20 having a wire insertion portion 23 to which the wire 3 is inserted and the bolt 15 can be fixed to the other end of the first connecting means 10, The power cable connecting device is configured to be able to communicate with the electric wire inserted into the electric wire inserting portion 23 of the second connecting means 20 from the electric wire inserted into the electric wire connecting portion 13 so as to prevent the electric wire from being bent So that the wire can be protected.

However, the above-mentioned "power cable connecting device" of the above-mentioned Patent Publication No. 2014-0062930 does not have a means for diagnosing deterioration of the power cable connecting device such as deterioration of connection materials and line aging or failure due to long- There is a problem that it can not be easily understood.

On the other hand, in power transmission lines or distribution lines, it is necessary to use power cables because underground lines are installed according to various operational needs, and power cables are manufactured to a length of about 300 to 500 m due to manufacturing and transportation restrictions .

The underground line is a line to transmit electric power by installing a power cable in the underground. In Korea, for the first time, a 22kV underground railway line was constructed between Ahn Hyundai in Seoul in 1929 and a 345kV underground transmission line was installed in Seoul .

The above-mentioned underground line is mainly constructed in a place where the processing line is technically difficult, in a busy area in the center of a large city, in a critical area required for security, and in a large apartment complex. Most of them are buried beneath the road. In general, there are direct type, duct type, power outage type and bridge type, and the method to be applied is selected considering the place of installation and various advantages.

The power line underground project is a project to dismantle the processing distribution line that hurts the beauty of the city and to install the line in the ground. It is a project to improve the complex cityscape, power capacity expansion, And the area where habitat natural disaster such as typhoon and salt spill occurs), and the processing distribution line is always exposed to the risk of safety accident. Therefore, the undergroundization of the processing distribution line is a global trend and is steadily increasing It is true.

In underground construction, it is necessary to deal with terminal end of cable, connection between cables, and connection with electric power equipment. The cable connection material used here requires electrical characteristics of the same performance as the corresponding electric power cable, Electrical accidents can be caused, and it becomes very important to install a professional cable connection material to the underground line.

In advanced economies, we are introducing silicon-based connecting materials that are eco-friendly due to environmental friendliness and reduced emission of CO2. In addition to the assembled connecting materials manufactured by EPDM (Ethylene Propylene Diene Monomer) The specifications of self-shrinkable joint materials using silicon have been separately revised.

For this reason, foreign companies such as 3M and Raychem are supplying monopoly to KEPCO. In order to cope with this situation, it is required to develop a cable termination and a straight connection port using liquid silicone which is an environmentally friendly material.

In addition, as a result of analysis of 22.9kV CN-CV cable and connection port in Korea, 69% of the number of accidents was broken and 31% was analyzed as failure of cable. The installation of the connection port and the installation of the cable should be performed well.

In addition, the connection ports used in Korea are similar in terms of insulation design standards, but the material, structure, and construction method of the connection ports are different for each manufacturer, and when the deterioration tendency of the connection ports or the breakage of the connection ports due to such differences in materials, Each fracture site and cause of fracture have different tendencies.

In summary, the failure rate due to defective compression of the sleeve occupies the largest percentage of failures due to the failure of the straight port, but it is presumed that the failure is due to the melting phenomenon occurring during the high - Defects such as poor tape winding, pore generation due to bending, defective pencil sharpening, defective removal of half-layer, insulator damage, tube heating failure, and pore generation due to foreign matter penetration.

As a conventional technique for detecting defects caused by the connection port of the underground cable, there is a method of measuring insulation resistance, DC leakage, partial discharge, DC withstand voltage, AC test, OSW (Oscillating Wave), IRC (Isothermal Relaxation Current) VLF (Very Low Frequency) measurement, and partial discharge sensor measurement.

However, the above-described conventional techniques are incapable of detecting defects such as clean voids and cuts generated in the cable in the case of the DC test, detrimental to the performance of the cable in which the water tree phenomenon occurs, In the case of frequency test, the equipment is heavy and expensive, it is impossible to judge the state of the insulator, and IRC (Isothermal Relaxation Current) The reliability of the diagnosis result is low and the measurement time is long.

Patent Document 1: Registration No. 1032733, Patent Document 2: JP-A-2014-0062930,

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances and is an object of the present invention to solve the various drawbacks and problems caused in the conventional cable connection deterioration diagnosis, (PD) to diagnose the deterioration of the cable connection material, thereby reducing the replacement cost of the transmission line and preventing the failure of the connection material.

It is another object of the present invention to provide a method and apparatus for diagnosing deterioration of a cable connection material by analyzing a partial discharge (PD) in a gas insulated switchgear (GIS) for a transmission line, thereby simplifying construction, And a cross link self-shrinkable deterioration diagnosis cable connection material which can be easily adopted in a self-shrinkable straight connection material and a self-shrinkable termination material.

Still another object of the present invention is to provide a cross link self-shrinkable deterioration diagnostic cable connection material which can be used in a cost-effective manner and which can be used stably for a long period of time without failures, There is.

In order to attain the above object, the cross link self-shrinkable deterioration diagnosis cable connection material of the present invention comprises a temperature patch 103 attached to a sleeve 102 of a connection member 101 and a sensor 103 for measuring a detection signal from the potential difference detection patch 104 A signal measuring unit 100; A signal converting unit 200 for converting the analog signal A measured by the sensor signal measuring unit 100 into a digital signal D; A wireless communication / interface unit 300 for transmitting the converted signal of the signal conversion unit 200 to a remote location; A memory (400) in which the temperature range of the steady state of the connection member and the set value of the potential difference range are stored; A control unit 500 for comparing the measurement value converted by the signal conversion unit 200 with a preset value stored as a reference signal in the memory 400 and determining whether the measured value is in a normal temperature range and a potential difference range, Wow; An alarm unit 600 that sounds an alarm according to the driving control of the control unit 500 when the measured value is out of the normal temperature range and the potential difference range according to the determination result of the controller 500; A display unit 700 for displaying the deterioration state of the connection material according to the driving control of the control unit 500 when the measured value is out of the normal temperature range and the potential difference range according to the determination result of the controller 500; And a deterioration diagnosis unit comprising a power supply unit (800) for supplying power required for the deterioration diagnosis apparatus.

The present invention analyzes the partial discharge (PD) in the gas insulated switchgear (GIS) of the transmission line to diagnose deterioration of the cable connection material, thereby reducing the replacement cost of the transmission line and preventing the failure of the connection material. This is simple and easy to install and can shorten the construction time and can simplify the configuration and reduce the price of the self-shrinkable cable connection deterioration diagnosis device, and can be used for a long period of time without failures. There is a special advantage that a self-contractible deterioration diagnosis cable connection material can be provided.

1 is a perspective view of a conventional wire connecting connector,
2 is a cross-sectional view of a conventional wire connecting connector,
3 is a conceptual diagram of an embodiment of a conventional power cable connecting apparatus,
4 is a block diagram showing a deterioration diagnosis apparatus for a cross link self-shrinkable deterioration diagnosis cable connection material,
FIG. 5 is a view showing an example of a cross link self-shrinkable deterioration diagnosis cable connection material according to the present invention, wherein (a) is a straight line connecting material, (b)
6 is a conceptual diagram of a cable deterioration diagnosis according to the present invention,
7 is a view showing a deterioration diagnosis position of a cable connection material according to the present invention,
8 is a conceptual diagram of signal measurement of a cable connection material in the deterioration diagnosis means of the cross link self-shrinkable deterioration diagnosis cable connection material of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a cross link self-shrinkable deterioration diagnosis cable connection material of the present invention will be described in detail with reference to the accompanying drawings.

5 is a view showing an example of a cross link self-shrinkable deterioration diagnosis cable connection material according to the present invention, wherein (a) is a straight line connection port, (b) is a straight line connection port, FIG. 6 is a conceptual diagram of a cable deterioration diagnosis according to the present invention, FIG. 7 is a view showing a deterioration diagnosis position of a cable connection material according to the present invention, FIG. 8 is a cross- The cross link self-shrink type deterioration diagnosis cable connection material of the present invention is used as a signal measurement concept of the cable connection material in the case where the detection signal from the temperature patch 103 attached to the sleeve 102 of the connection member 101 and the potential difference detection patch 104 A sensor signal measuring unit 100 for measuring a sensor signal; A signal converting unit 200 for converting the analog signal A measured by the sensor signal measuring unit 100 into a digital signal D; A wireless communication / interface unit 300 for transmitting the converted signal of the signal conversion unit 200 to a remote location; A memory (400) in which the temperature range of the steady state of the connection member and the set value of the potential difference range are stored; A control unit 500 for comparing the measurement value converted by the signal conversion unit 200 with a preset value stored as a reference signal in the memory 400 and determining whether the measured value is in a normal temperature range and a potential difference range, Wow; An alarm unit 600 that sounds an alarm according to the driving control of the control unit 500 when the measured value is out of the normal temperature range and the potential difference range according to the determination result of the controller 500; A display unit 700 for displaying the deterioration state of the connection material according to the driving control of the control unit 500 when the measured value is out of the normal temperature range and the potential difference range according to the determination result of the controller 500; And a deterioration diagnosis unit comprising a power supply unit (800) for supplying power required for the deterioration diagnosis apparatus.

The measurement signal of the sensor signal measuring unit 100 is transmitted to a terminal 102 for measuring an internal partial discharge (PD) for the sleeve 102 of the transmission line connection port 101. The connection member 101 is a linear connection member or a termination member, (voltage) signal of the shield 105 (shield) drawn from the terminal by making a terminal.

The measurement signal of the sensor signal measuring unit 100 is a measure of intermittently shielding the internal signal of the connection member 101. The measurement signal of the secondary (shield) of the main power detected by the plasma pick- (Variation) of the electromotive force.

The sleeve 102 is preferably a tube formed of silicone rubber. The temperature of the reference signal stored in the memory 400 is 70 to 80 DEG C for the temperature and 450 to 550 DEG for the potential difference.

Next, the operation of the cross link self-shrink type deterioration diagnosis cable connecting material of the present invention constructed as described above will be described in detail.

Prior to the explanation, the deterioration diagnosis concept of the cable connection material will be described first.

6, a terminal for measuring the internal partial discharge (PD) of the sleeve 102 of the power transmission line connection member 101 is fabricated, and a shield 105 (shield) And detects a circle (voltage). This detection signal can be processed to diagnose deterioration of the cable connection material.

7, which shows the deterioration diagnosis position of the cable connection, is measured by interrupting the shield against the internal signal difference of the connection member 101. In this way, a plasma picup is used to measure the secondary power (Variation) of the electromotive force of the shielding film (shield). This detection signal can be processed to diagnose deterioration of the cable connection material.

8, the sensor signal measuring unit 100 measures a detection signal from a temperature patch 103 and a potential difference detecting patch 104 that are in contact with a sleeve 102 of a connection member 101, The analog signal A measured by the unit 100 is converted into a digital signal D by the signal converting unit 200.

The converted signal of the signal converting unit 200 may be wirelessly transmitted to a remote place through the wireless communication / interface unit 300 as needed to diagnose deterioration of the cable connecting material 101 at a remote location.

Meanwhile, a measurement signal, for example, a potential difference signal, which is converted into the digital signal D in the signal conversion unit 200, is compared with the reference potential difference signal set in the memory 400 and the measured value is compared with the potential difference If it is out of the range, the control unit 500 judges the state of the connection member as a deteriorated state. For example, when the reference potential difference signal set in the memory 400 is set at 75 DEG C, if the measured temperature is 75 DEG C or less, the controller 500 determines that the state of the connection member is normal, So that the alarm does not sound and the display unit 700 displays a normal state.

On the other hand, if the measured temperature is higher than 75 DEG C, the control unit 500 determines that the state of the connection member is in a deteriorated state, drives the alarm unit 600 to sound an alarm, and simultaneously displays the deterioration state of the connection member in the display unit 700 do.

For example, when the reference temperature signal set in the memory 400 is set at 80 deg. C, if the measured temperature is 80 deg. C or less, the controller 500 determines that the state of the connection member is normal and drives the alarm unit 600 The alarm does not sound and the display unit 700 displays a normal state.

On the other hand, if the measured temperature is higher than 80 DEG C, the control unit 500 determines that the state of the connection member is in a deteriorated state, drives the alarm unit 600 to sound an alarm and simultaneously displays the deterioration state of the connection member in the display unit 700 do.

In addition, a measurement signal, such as a potential difference signal, which is converted into a digital signal (D) in the signal conversion unit 200 is compared with a reference potential difference signal set in the memory 400 by the control unit 500, When the potential difference is out of the range, the controller 500 determines that the state of the connection member is in a deteriorated state. For example, when the reference potential difference signal set in the memory 400 is set to 500 V, if the measured potential difference is 500 V or less, the controller 500 determines the state of the connection member as a normal state, The alarm does not sound and the display unit 700 displays a normal state.

On the other hand, if the measured potential difference is higher than 500 V, the controller 500 determines that the state of the connection member is in a deteriorated state, drives the alarm unit 600 to sound an alarm, and simultaneously displays the deterioration state of the connection member on the display unit 700 .

For example, when the reference potential difference signal set in the memory 400 is set to 550 V, if the measured potential difference is 550 V or less, the control unit 500 determines that the state of the connection member is normal and does not drive the alarm unit 600 The alarm does not sound and the display unit 700 displays a normal state.

On the other hand, if the measured potential difference is higher than 550 V, the controller 500 determines that the state of the connection member is in a deteriorated state, drives the alarm unit 600 to sound an alarm, and simultaneously displays the deterioration state of the connection member on the display unit 700 .

While the present invention has been described with reference to the preferred embodiments, it is to be understood that the present invention is not limited thereto and various changes and modifications may be made without departing from the scope of the invention.

100: Sensor signal measuring unit 101: Connection member
102: Sleeve 103: Temperature Patch
104: Potential difference detection patch 105: Shield
200: signal conversion unit 300: wireless communication / interface unit
400: memory 500:
600: alarm unit 700: display unit
800:

Claims (6)

A sensor signal measurement section 100 for measuring a detection signal from a temperature patch 103 and a potential difference detection patch 104 which are attached to a sleeve 102 of a connection member 101 which is a linear connection material or a termination connection material; A signal converting unit 200 for converting the analog signal A measured by the sensor signal measuring unit 100 into a digital signal D; A wireless communication / interface unit 300 for transmitting the converted signal of the signal conversion unit 200 to a remote location; A memory (400) in which the temperature range of the steady state of the connection member and the set value of the potential difference range are stored; A controller 500 for comparing the measured value converted by the signal converting unit 200 with the preset value stored in the memory 400 and determining whether the measured value is within the range of the potential difference from the normal temperature range; An alarm unit 600 that sounds an alarm according to the driving control of the control unit 500 when the measured value is out of the normal temperature range and the potential difference range according to the determination result of the controller 500; A display unit 700 for displaying the deterioration state of the connection material according to the driving control of the control unit 500 when the measured value is out of the normal temperature range and the potential difference range according to the determination result of the controller 500; Claims [1] A cross link self-shrinking deterioration diagnosis cable connection material comprising deterioration diagnosis means comprising a power supply unit (800) for supplying power required for a deterioration diagnosis apparatus, comprising:
The measurement signal of the sensor signal measuring unit 100 is transmitted to both ends of a shield 105 drawn from an internal partial discharge (PD) measurement terminal for the sleeve 102 of the transmission line connection member 101 Signal (voltage) signal;
Wherein the reference signal stored in the memory (400) is 70 ° C to 80 ° C in temperature and 450V to 550V in the case of a potential difference. delete delete 2. The method according to claim 1, wherein the measurement signal of the sensor signal measuring unit (100) is measured by interrupting a shield against an internal signal difference of the connection member (101) Is a deviation (variation) of an electromotive force of a secondary (shield). delete delete
KR1020150128590A 2015-09-10 2015-09-10 Cable connector for detecting deterioration of cross link self-contraction type KR101692638B1 (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110441646A (en) * 2019-08-23 2019-11-12 江苏省送变电有限公司 A kind of GIL conducting rod connection evaluation system and method based on resistive potential difference ratio
CN110501617A (en) * 2019-07-11 2019-11-26 特斯联（北京）科技有限公司 A kind of partial discharge of switchgear detection system and method
CN110864727A (en) * 2018-10-18 2020-03-06 国网山东省电力公司应急管理中心 GIS power grid fine early warning system based on cable sensor
KR20220006698A (en) * 2020-07-09 2022-01-18 김병조 Self-contraction type waterproof tube using super absorbent polymer
WO2023154629A1 (en) * 2022-02-10 2023-08-17 Commscope Technologies Llc Overvoltage protection devices and methods of operation thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06331685A (en) * 1993-05-20 1994-12-02 Furukawa Electric Co Ltd:The Measuring method for partial discharge in compressed gas insulated cable way, and connection
KR101032733B1 (en) 2009-02-18 2011-05-06 이재익 Connector for electric wire connection
KR20140062930A (en) 2012-11-15 2014-05-27 박혜경 The connecting apparatus for power cable
KR20150079149A (en) * 2013-12-31 2015-07-08 주식회사 포스코아이씨티 System Monitoring Deterioration of Cable Joint and Method for Controlling The Same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06331685A (en) * 1993-05-20 1994-12-02 Furukawa Electric Co Ltd:The Measuring method for partial discharge in compressed gas insulated cable way, and connection
KR101032733B1 (en) 2009-02-18 2011-05-06 이재익 Connector for electric wire connection
KR20140062930A (en) 2012-11-15 2014-05-27 박혜경 The connecting apparatus for power cable
KR20150079149A (en) * 2013-12-31 2015-07-08 주식회사 포스코아이씨티 System Monitoring Deterioration of Cable Joint and Method for Controlling The Same

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110864727A (en) * 2018-10-18 2020-03-06 国网山东省电力公司应急管理中心 GIS power grid fine early warning system based on cable sensor
CN110864727B (en) * 2018-10-18 2021-09-17 国网山东省电力公司应急管理中心 GIS power grid fine early warning system based on cable sensor
CN110501617A (en) * 2019-07-11 2019-11-26 特斯联（北京）科技有限公司 A kind of partial discharge of switchgear detection system and method
CN110441646A (en) * 2019-08-23 2019-11-12 江苏省送变电有限公司 A kind of GIL conducting rod connection evaluation system and method based on resistive potential difference ratio
CN110441646B (en) * 2019-08-23 2021-05-18 江苏省送变电有限公司 GIL conducting rod connection evaluation system and method based on resistive potential difference ratio
KR20220006698A (en) * 2020-07-09 2022-01-18 김병조 Self-contraction type waterproof tube using super absorbent polymer
KR102391038B1 (en) 2020-07-09 2022-04-25 김병조 Self-contraction type waterproof tube using super absorbent polymer
WO2023154629A1 (en) * 2022-02-10 2023-08-17 Commscope Technologies Llc Overvoltage protection devices and methods of operation thereof

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