CN205049252U - Detection apparatus for GIS internal conductor overheating fault - Google Patents
Detection apparatus for GIS internal conductor overheating fault Download PDFInfo
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- CN205049252U CN205049252U CN201520608654.2U CN201520608654U CN205049252U CN 205049252 U CN205049252 U CN 205049252U CN 201520608654 U CN201520608654 U CN 201520608654U CN 205049252 U CN205049252 U CN 205049252U
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Abstract
The utility model relates to a detection apparatus for GIS internal conductor overheating fault belongs to electric power system electrical equipment failure diagnosis technical field, can effectively detect GIS internal conductor overheating fault. Including conductor and GIS casing, be equipped with horizontal setting and connect gradually benzvalene form insulator A and binding post A with vertical two parts conductor that sets up, the horizontal conductor that sets up end in addition in the casing, the end in addition that vertically sets up the conductor connects gradually benzvalene form insulator B and B binding post, conductor and benzvalene form insulator A and benzvalene form insulator B internal connection, be located the GIS casing inside, constitute whole galvanic circle, establish isolator and experimental flange on the casing, connect contact seat and conducting rod on the conductor. The utility model discloses an infrared thermographic inspection obtains GIS internal conductor temperature to the shell, effectively detects GIS internal conductor overheating fault, guarantees the safety and stability operation of GIS equipment, and messenger's detection achievement effect and live working in -process operation personnel's security is being shown to improve.
Description
Technical field
The utility model relates to a kind of pick-up unit of GIS inner conductor overheating fault, belongs to electric system fault diagnosis technical field, effectively can detect GIS inner conductor overheating fault.
Background technology
During the loose contact of GIS device inner conductor, because contact resistance becomes large, fever phenomenon can be produced load current flow is out-of-date.The overheated meeting of conductor causes insulation ag(e)ing even to puncture, thus causes short circuit, forms major accident, causes heavy economic losses.Therefore, detect the temperature of GIS device inner lead, find and fix a breakdown hidden danger in advance, has very important significance to the safe and reliable operation of GIS.
In recent years, along with rapid scanning thermal infrared imager day by day perfect of high-temperature resolution and spatial resolution, the infrared diagnosis technology of the device interior fault based on infrared scan thermometric obtains and develops rapidly and widespread use, and achieves good technical benefits and economic benefit.But because GIS is totally enclosed type high voltage alive equipment, heat generating spot is positioned at device interior inconvenience and detects.Therefore current in the urgent need to a kind of pick-up unit by obtaining GIS inner conductor temperature to shell IR thermal imaging inspection.
Utility model content
The utility model is for prior art Problems existing, a kind of pick-up unit of GIS inner conductor overheating fault is provided, object is to provide a kind of pick-up unit by obtaining GIS inner conductor temperature to shell IR thermal imaging inspection, effectively can detect GIS inner conductor overheating fault, ensure the pick-up unit of the safe and stable operation of GIS device.
For realizing above-mentioned utility model object, the utility model adopts following technical scheme:
A pick-up unit for GIS inner conductor overheating fault, comprises conductor and GIS housing, two parts conductor being provided with horizontally set and longitudinally arranging in housing, and the other end of the conductor of horizontally set connects disc insulator A and connection terminal A successively; The other end of the conductor longitudinally arranged connects disc insulator B and B connection terminal successively; Described conductor is connected with disc insulator A and disc insulator B inside, is positioned at the inside of GIS housing, forms whole galvanic circle; Described housing is also provided with disconnector and test flange, conductor is connected with contact base and conducting rod.
Described test flange cast inside has thermocouple wire, is installed on GIS housing by bolt; 10 thermopairs can be arranged on the diverse location of conductor, are connected in the monitoring instrument of GIS outside by thermocouple wire, the temperature of monitoring conductor diverse location.
Described access hole is installed on GIS housing by bolt, is convenient to remove and install; Can conducting rod be changed by access hole, different bad contact types is set.
Described disconnector is located at housing upper and is connected with conductor, can control separating brake, the combined floodgate degree of depth, controls the insertion depth of conducting rod and contact base.
Described connection terminal comprises two connection terminals: connection terminal A and B connection terminal, and two connection terminals are connected with the disc insulator of device both sides respectively; Namely connection terminal A is connected with disc insulator A, and B connection terminal is connected with disc insulator B.
Advantage of the present utility model and beneficial effect are:
1, the test flange cast inside of pick-up unit has thermocouple wire, and 10 thermopairs can be arranged on the diverse location of conductor, is connected in the monitoring instrument of GIS outside, can realizes the accurate temperature measurement to GIS inner conductor by thermocouple wire;
2, pick-up unit can change conducting rod by access hole, controls different insertion depths in conjunction with disconnector, can arrange different bad contact types, fully can simulate various overheating fault type;
3, on the basis to GIS shell, inner conductor and external environment condition accurate temperature measurement, establish the functional relation between three, just can be obtained the temperature of inner conductor by thermal infrared imager test case temperature and environment temperature;
4, carry out simulation calculation by founding mathematical models, the starting condition identical with realistic model is set, solves the temperature value of GIS inner conductor and surface of shell, result of calculation and test findings are contrasted, functional relation is verified further;
5, by the temperature curve of GIS inner conductor, trouble spot and fault size that overheating fault occurs can be judged.
The utility model by obtaining GIS inner conductor temperature to shell IR thermal imaging inspection, effectively can detect GIS inner conductor overheating fault, ensureing the safe and stable operation of GIS device.Testing effect is improved greatly, also significantly improves the security of operating personnel in hot line job process.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model pick-up unit.
In figure: connection terminal A1, disc insulator A2, conductor 3, disconnector 4, test flange 5, conducting rod 6, contact base 7, access hole 8, housing 9, disc insulator B10, B connection terminal 11.
Embodiment
As shown in Figure 1, the utility model is a kind of pick-up unit of GIS inner conductor overheating fault, comprises conductor 3, GIS housing 9, A connection terminal 1, B connection terminal 11, disc insulator A2, disc insulator B10, disconnector 4, conducting rod 6, contact base 7, access hole 8, test flange 5.
This device is two parts conductor 3 being provided with horizontally set and longitudinally arranging in housing 9, and the other end of the conductor 3 of horizontally set connects disc insulator A2 and connection terminal A1 successively; The other end of the conductor 3 longitudinally arranged connects disc insulator B10 and B connection terminal 11 successively.
Connection terminal described in the utility model comprises two connection terminals: connection terminal A1 and B connection terminal 11, two connection terminals are connected with the disc insulator of device both sides respectively.Namely connection terminal A1 is connected with disc insulator A2, and B connection terminal 11 is connected with disc insulator B10.
Described conductor 3 is connected with disc insulator A2 and disc insulator B10 inside, is positioned at the inside of GIS housing 9, forms whole galvanic circle.
Described test flange 5 cast inside has thermocouple wire, is installed on GIS housing 9 by bolt; 10 thermopairs can be arranged on the diverse location of conductor 3, are connected in the monitoring instrument of GIS outside by thermocouple wire, the temperature of monitoring conductor diverse location.
Described access hole 8 is installed on GIS housing 9 by bolt, is convenient to remove and install; Conducting rod 6 can be changed by access hole 8, different bad contact types is set.
Described conductor 3 top longitudinally arranged is connected with contact base 7 and conducting rod 6, and conducting rod 6 is connected with an end of the conductor 3 of horizontally set.
Described disconnector 4 is located at housing upper and is connected with conductor 3, can control separating brake, the combined floodgate degree of depth, controls the insertion depth of conducting rod 6 and contact base 7.
When utilizing the utility model device to detect, concrete operation step is as follows:
Step 1: under various different bad contact type, different current values is applied by connection terminal, by the case temperature value of infrared heat image instrument measuring GIS, with the inner conductor temperature value of thermocouple measurement GIS, use thermometer measure ambient temperature value, according to the corresponding relation of three groups of data, set up corresponding functional relation;
Step 2: set up corresponding mathematical model, arranges the starting condition identical with realistic model, solves the temperature value of GIS inner conductor and surface of shell, result of calculation and test findings are contrasted, verify further functional relation;
Step 3: IR thermal imaging inspection and environment temperature detection are carried out to operating GIS shell, according to described functional relation, calculates the temperature curve of GIS inner conductor;
Step 4: judge whether GIS inner conductor has overheating fault according to the temperature curve of GIS inner conductor.
In sum, the pick-up unit that the utility model provides, can arrange the bad contact type that GIS inner conductor is different, by the accurate temperature measurement to GIS housing, inner conductor and external environment condition, sets up the functional relation between three; Set up mathematic simulated mode, the starting condition identical with realistic model is set, conductor temperature and casing surface temperature is obtained by simulation calculation, result of calculation and test findings are contrasted, the accuracy of verification computation result, on the rational basis of mathematical model, calculate the test findings of other starting condition further, realize the checking between actual physics model, realistic model sum functions relational expression.
By thermal infrared imager test GIS casing surface temperature and ambient temperature, casing surface temperature and environment temperature are substituted into functional relation, the temperature curve of GIS inner conductor can be obtained, according to temperature curve, the thermal self-restraint stress of inner conductor can be found out, namely can obtain the position of overheating fault point; According to the temperature value of overheating fault point, the size that overheating fault occurs can be judged, thus effectively can solve the problem that GIS inner conductor generation overheating fault not easily detects, ensure the safe and stable operation of GIS device, there is stronger practical value and promotional value.
Pick-up unit of the present utility model only illustrates some preferred embodiments in this manual, is not to its restriction.This professional and technical personnel can make various change or amendment according to the utility model design and spirit, and these all belong to protection domain of the present utility model.
Claims (5)
1. the pick-up unit of a GIS inner conductor overheating fault, comprise conductor (3) and GIS housing (9), it is characterized in that: two parts conductor (3) being provided with horizontally set and longitudinally arranging in housing (9), the other end of the conductor (3) of horizontally set connects disc insulator A(2 successively) and connection terminal A(1); The other end of the conductor (3) longitudinally arranged connects disc insulator B(10 successively) and B connection terminal (11); Described conductor (3) and disc insulator A(2) and disc insulator B(10) inner to be connected, be positioned at the inside of GIS housing (9), form whole galvanic circle; Described housing (9) is also provided with disconnector (4) and test flange (5), conductor (3) is connected with contact base (7) and conducting rod (6).
2. the pick-up unit of a kind of GIS inner conductor overheating fault according to claim 1, is characterized in that: described test flange (5) cast inside has thermocouple wire, is installed on GIS housing (9) by bolt; 10 thermopairs can be arranged on the diverse location of conductor (3), are connected in the monitoring instrument of GIS outside by thermocouple wire, the temperature of monitoring conductor diverse location.
3. the pick-up unit of a kind of GIS inner conductor overheating fault according to claim 1, is characterized in that: described GIS housing (9) is provided with access hole (8) by bolt, is convenient to remove and install; Conducting rod (6) can be changed by access hole, different bad contact types is set.
4. the pick-up unit of a kind of GIS inner conductor overheating fault according to claim 1, it is characterized in that: described disconnector (4) is located at housing upper and is connected with conductor (3), separating brake, the combined floodgate degree of depth can be controlled, control the insertion depth of conducting rod (6) and contact base (7).
5. the pick-up unit of a kind of GIS inner conductor overheating fault according to claim 1, it is characterized in that: described connection terminal comprises two connection terminals: connection terminal A(1) and B connection terminal (11), two connection terminals are connected with the disc insulator of device both sides respectively; I.e. connection terminal A(1) with disc insulator A(2) be connected, B connection terminal (11) and disc insulator B(10) be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520608654.2U CN205049252U (en) | 2015-08-13 | 2015-08-13 | Detection apparatus for GIS internal conductor overheating fault |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520608654.2U CN205049252U (en) | 2015-08-13 | 2015-08-13 | Detection apparatus for GIS internal conductor overheating fault |
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| Publication Number | Publication Date |
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| CN205049252U true CN205049252U (en) | 2016-02-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520608654.2U Active CN205049252U (en) | 2015-08-13 | 2015-08-13 | Detection apparatus for GIS internal conductor overheating fault |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105092050A (en) * | 2015-08-13 | 2015-11-25 | 国家电网公司 | Method and device for detecting overheat fault of GIS (Gas Insulated Switchgear) internal conductors |
| CN106771996A (en) * | 2016-11-17 | 2017-05-31 | 南方电网科学研究院有限责任公司 | A kind of live detection method of GIS contact overheating faults |
| CN106950478A (en) * | 2017-04-25 | 2017-07-14 | 南方电网科学研究院有限责任公司 | A kind of GIS device internal connection overheating fault simulation test device and method |
| CN108254077A (en) * | 2018-01-02 | 2018-07-06 | 国网上海市电力公司 | The GIS thermal fault detection methods merged based on part with global characteristics information |
| CN111024233A (en) * | 2019-11-14 | 2020-04-17 | 国网上海市电力公司 | Simulation device for poor contact of GIS internal contact and infrared calibration method |
-
2015
- 2015-08-13 CN CN201520608654.2U patent/CN205049252U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105092050A (en) * | 2015-08-13 | 2015-11-25 | 国家电网公司 | Method and device for detecting overheat fault of GIS (Gas Insulated Switchgear) internal conductors |
| CN105092050B (en) * | 2015-08-13 | 2018-06-19 | 国家电网公司 | A kind of detection method and device of GIS inner conductors overheating fault |
| CN106771996A (en) * | 2016-11-17 | 2017-05-31 | 南方电网科学研究院有限责任公司 | A kind of live detection method of GIS contact overheating faults |
| CN106950478A (en) * | 2017-04-25 | 2017-07-14 | 南方电网科学研究院有限责任公司 | A kind of GIS device internal connection overheating fault simulation test device and method |
| CN106950478B (en) * | 2017-04-25 | 2023-12-22 | 南方电网科学研究院有限责任公司 | GIS equipment internal joint overheat fault simulation test device and method |
| CN108254077A (en) * | 2018-01-02 | 2018-07-06 | 国网上海市电力公司 | The GIS thermal fault detection methods merged based on part with global characteristics information |
| CN108254077B (en) * | 2018-01-02 | 2020-04-28 | 国网上海市电力公司 | GIS thermal fault diagnosis method based on local and global feature information fusion |
| CN111024233A (en) * | 2019-11-14 | 2020-04-17 | 国网上海市电力公司 | Simulation device for poor contact of GIS internal contact and infrared calibration method |
| CN111024233B (en) * | 2019-11-14 | 2021-10-08 | 国网上海市电力公司 | Simulation device for poor contact of GIS internal contact and infrared calibration method |
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