CN103809085A - Junction device for cable high-voltage resistance test and cable high-voltage resistance test - Google Patents
Junction device for cable high-voltage resistance test and cable high-voltage resistance test Download PDFInfo
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- CN103809085A CN103809085A CN201210461372.5A CN201210461372A CN103809085A CN 103809085 A CN103809085 A CN 103809085A CN 201210461372 A CN201210461372 A CN 201210461372A CN 103809085 A CN103809085 A CN 103809085A
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- 238000012360 testing method Methods 0.000 title claims abstract description 65
- 238000007789 sealing Methods 0.000 claims description 13
- 238000010998 test method Methods 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 7
- 229910018503 SF6 Inorganic materials 0.000 claims description 5
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 claims description 5
- 229960000909 sulfur hexafluoride Drugs 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002085 persistent effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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Abstract
The invention provides a junction device for cable high-voltage resistance test and a cable high-voltage resistance test. The junction device comprises a shell, a contact part, a lead part and an air valve, wherein the shell comprises a first connecting part and a second connecting part used for connecting a cable to be tested, a cavity is formed in the shell, at least one part of the contact part is arranged in the cavity, the contact part is connected with the shell by the first connecting part, the lead part is arranged outside the cavity and connected with the contact part, the air valve is used for filling insulating gas into the cavity, and the air valve is arranged on the shell. A cable terminal device used for testing the cable is arranged in the cavity of the junction device, and the cavity is filled with the insulating gas which is the same as that in a GIS (Gas Insulated Switchgear), so that the working environment of a cable terminal arranged on the GIS is simulated. Therefore, the junction device can be used for the high-voltage resistance test of the cable to be tested, and the cable to be tested can be tested without being installed on the GIS, so that the damage of the high-voltage resistance test of the cable to be tested to the GIS can be avoided.
Description
Technical field
The present invention relates to power domain, more specifically, relate to a kind of termination and cable voltage method of testing for cable voltage test.
Background technology
In prior art, before 110kV and above cable and GIS putting equipment in service, need to do AC voltage withstand test.GIS equipment test voltage is 200kV, and the persistent pressure time is 1 minute; The trial voltage of 110kV cable line is 128kV, and the persistent pressure time is 60 minutes.And the voltage-withstand test that cable is carried out needs in the Insulated Hold of cable splice in GIS equipment, then to cable pressurization, carry out voltage-withstand test.
In prior art, the method for cable being carried out to voltage-withstand test is, cable is arranged on GIS equipment, and on GIS equipment installation testing sleeve pipe, by high-voltage connection, GIS equipment and cable are carried out to AC voltage withstand test with the withstand voltage standard of cable.Can find out, the voltage-withstand test of cable is obviously longer than the voltage-withstand test pressing time of GIS equipment pressing time, can, to the parts of GIS equipment for a long time in high-voltage state, can cause damage to GIS equipment like this.And, for the GIS equipment that does not possess the condition that experiment thimble is installed, cannot carry out ac voltage withstanding test to cable.
Summary of the invention
The present invention aims to provide a kind of termination and cable voltage method of testing for cable voltage test, to solve prior art cable is arranged on GIS equipment, then when cable is carried out to voltage-withstand test, can cause to GIS equipment the problem of damage.
For solving the problems of the technologies described above, according to a first aspect of the invention, provide a kind of termination for cable voltage test, having comprised: housing, housing comprises the first connecting portion and the second connecting portion for being connected cable to be tested, and the inside of housing forms cavity; Contact portion, at least a portion of contact portion is arranged in cavity, and contact portion is connected with housing by the first connecting portion; Leading part, leading part is arranged on the outside of cavity, and leading part is connected with contact portion; For be filled with the air valve of insulating gas in cavity, air valve is arranged on housing.
Further, contact portion comprises contact mechanism and electrode, and the first end of electrode is connected with the first connecting portion, and contact mechanism comprises: contact cover, and contact cover is set in the second end of electrode, between contact cover and the second end of electrode, forms limit chamber; Moving contact, moving contact is arranged in limit chamber, and moving contact is electrically connected with electrode; Flexible member, flexible member is arranged in limit chamber, and one end of flexible member is connected with moving contact, and the other end of flexible member is connected with electrode.
Further, contact mechanism also comprises channelizing line, and electrode is electrically connected with moving contact by channelizing line.
Further, housing also comprises the first sealing gasket, and contact portion is connected with the first connecting portion by the first sealing gasket.
Further, termination also comprises insulation sleeve, and insulation sleeve is set on leading part.
Further, leading part and the vertical setting mutually of contact portion.
Further, the first connecting portion is the first flange, and the second connecting portion is the second flange.
Further, insulating gas is sulfur hexafluoride.
According to a second aspect of the invention, also provide a kind of cable voltage method of testing, above-mentioned termination is provided; The cable termination of cable to be tested is inserted in the cavity of housing of termination, and the cable termination of cable to be tested is connected with the second connecting portion of housing; The leading part of termination is electrically connected with voltage-resisting test apparatus; Air valve by termination is extracted the air in cavity out, and is filled with insulating gas in cavity; Use voltage-resisting test apparatus to treat test cable and carry out voltage-withstand test.
Further, between the second connecting portion and the cable termination of cable under test, the second sealing gasket is also set.
The cable termination of test cable is arranged in the cavity of termination, and chamber is filled with and insulating gas same in GIS equipment, has so just simulated cable termination and has been arranged on the working environment on GIS equipment.Therefore, can carry out voltage-withstand test to cable under test by termination, test again and will cable under test be arranged on GIS equipment, so just avoid the voltage-withstand test of cable under test to cause damage to GIS equipment.
Accompanying drawing explanation
The accompanying drawing that forms the application's a part is used to provide a further understanding of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 has schematically shown the schematic diagram that the termination in the present invention is connected with cable to be tested; And
Fig. 2 has schematically shown the connection diagram of the contact portion of the termination in the present invention and the cable termination of cable to be tested.
Reference numeral in figure: 10, housing; 11, the first connecting portion; 111, the first sealing gasket; 12, the second connecting portion; 121, the second sealing gasket; 13, cavity; 14, air valve; 20, contact portion; 21, contact mechanism; 211, contact cover; 212, moving contact; 213, flexible member; 214, channelizing line; 215, limit chamber; 22, electrode; 30, leading part; 31, insulation sleeve; 40, cable termination.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are elaborated, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
According to a first aspect of the invention, a kind of termination for cable voltage test is provided, and as shown in Figure 1, this termination comprises: housing 10, housing 10 comprises the first connecting portion 11 and the second connecting portion 12 for being connected cable to be tested, and the inside of housing 10 forms cavity 13; Contact portion 20, at least a portion of contact portion 20 is arranged in cavity 13, and contact portion 20 is connected with housing 10 by the first connecting portion 11; Leading part 30, leading part 30 is arranged on the outside of cavity 13, and leading part 30 is connected with contact portion 20; For be filled with the air valve 14 of insulating gas in cavity 13, air valve 14 is arranged on housing 10.
As shown in Figure 1, the cable termination 40 of cable to be tested is arranged in the cavity 13 of termination, is filled with and insulating gas same in GIS equipment in cavity 13, has so just simulated cable termination 40 and has been arranged on the working environment on GIS equipment.Therefore, can carry out voltage-withstand test to cable under test by termination, test again and will cable under test be arranged on GIS equipment, so just avoid the voltage-withstand test of cable under test to cause damage to GIS equipment.
Preferably, the first connecting portion 11 is first flanges, and the second connecting portion 12 is second flanges.The first flange is connected with the three-flange being arranged in contact portion 20, and the second flange is connected with the 4th flange being arranged on the cable termination of cable under test.
Preferably, insulating gas is sulfur hexafluoride.Sulfur hexafluoride gas is the insulating gas being filled with in GIS equipment, has good insulating property.Meanwhile, in cavity 13, be filled with sulfur hexafluoride gas, can also guarantee cable under test to carry out when withstand voltage, cable does not discharge to housing 10.
Preferably, as shown in Figure 2, contact portion 20 comprises contact mechanism 21 and electrode 22, the first end of electrode 22 is connected with the first connecting portion 11, contact mechanism 21 comprises: contact cover 211, contact cover 211 is set in the second end of electrode 22, between contact cover 211 and the second end of electrode 22, forms limit chamber 215; Moving contact 212, moving contact 212 is arranged in limit chamber 215, and moving contact 212 is electrically connected with electrode 22; Flexible member 213, flexible member 213 is arranged in limit chamber 215, and one end of flexible member 213 is connected with moving contact 212, and the other end of flexible member 213 is connected with electrode 22.Preferably, contact mechanism 21 also comprises channelizing line 214, and electrode 22 is electrically connected with moving contact 212 by channelizing line 214.
As shown in Figure 2, when cable under test is arranged on the cavity 13 of termination when interior, cable termination 40 contacts with moving contact 212 and conducting, and meanwhile, cable termination 40 need to compress compression elastic element 213 one end distances.Like this, flexible member 213 produces elastic force, has guaranteed that cable termination 40 can be adjacent to moving contact 212, and has guaranteed the conducting of cable termination 40 with moving contact 212.In addition, between electrode 22 and moving contact 212, be also electrically connected by channelizing line 214, thereby further guaranteed the conducting of electrode 22 with moving contact 212.
Preferably, housing 10 also comprises the first sealing gasket 111, and contact portion 20 is connected with the first connecting portion 11 by the first sealing gasket 111.Preferably, as shown in Figure 1, between the second connecting portion 12 and cable under test, be also provided with the second sealing gasket 121.The first sealing gasket 111 and the second sealing gasket 121 can guarantee the impermeability of cavity 13, prevent that insulating gas leakage from causing the variation of wireline test environment, and then cause the voltage-withstand test of cable inaccurate.
Preferably, termination also comprises insulation sleeve 31, and insulation sleeve 31 is set on leading part 30.
Preferably, leading part 30 and the mutual vertical setting of contact portion 20.Like this, termination is L-shaped, is convenient to, at leading part 30 place's connecting test lead-in wires, also can reduce the horizontal length of termination, saves space.
According to a second aspect of the invention, provide a kind of cable voltage method of testing, first, provide above-mentioned termination; Secondly, the cable termination of cable to be tested 40 is inserted in the cavity 13 of housing 10 of termination, and the cable termination of cable to be tested 40 is connected with the second connecting portion 12 of housing 10; Afterwards, the leading part of termination 30 is electrically connected with voltage-resisting test apparatus; Then, by the air valve 14 of termination, the air in cavity 13 is extracted out, and be filled with insulating gas in cavity 13; Finally, use voltage-resisting test apparatus to treat test cable and carry out voltage-withstand test.
This cable voltage method of testing is that cable under test is connected with termination, and simulation cable under test is arranged on the working environment in GIS equipment, then cable under test is carried out to voltage-withstand test.Rather than as in prior art, cable under test is arranged in GIS equipment, then carry out voltage-withstand test.So this cable voltage method of testing can not cause damage to GIS equipment, can guarantee again accuracy and the reliability of test result simultaneously.
Preferably, if the cable termination that the cable termination of cable under test is short type, be that length is the cable termination of 470mm, when in the cavity 13 that the cable termination of this kind of short type is fit into termination, between cable termination and moving contact 212, arrange and add long conductor, guaranteeing can conducting between cable and contact portion 20.
These are only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. for a termination for cable voltage test, it is characterized in that, comprising:
Housing (10), described housing (10) comprises the first connecting portion (11) and the second connecting portion (12) for being connected cable to be tested, the inside of described housing (10) forms cavity (13);
Contact portion (20), at least a portion of described contact portion (20) is arranged in described cavity (13), and described contact portion (20) is connected with described housing (10) by described the first connecting portion (11);
Leading part (30), described leading part (30) is arranged on the outside of described cavity (13), and described leading part (30) is connected with described contact portion (20);
For be filled with the air valve (14) of insulating gas in described cavity (13), described air valve (14) is arranged on described housing (10).
2. termination according to claim 1, it is characterized in that, described contact portion (20) comprises contact mechanism (21) and electrode (22), and the first end of described electrode (22) is connected with described the first connecting portion (11), and described contact mechanism (21) comprising:
Contact cover (211), described contact cover (211) is set in the second end of described electrode (22), between described contact cover (211) and the second end of described electrode (22), forms limit chamber (215);
Moving contact (212), described moving contact (212) is arranged in described limit chamber (215), and described moving contact (212) is electrically connected with described electrode (22);
Flexible member (213), described flexible member (213) is arranged in described limit chamber (215), and one end of described flexible member (213) is connected with described moving contact (212), and the other end of described flexible member (213) is connected with described electrode (22).
3. termination according to claim 2, is characterized in that, described contact mechanism (21) also comprises channelizing line (214), and described electrode (22) is electrically connected with described moving contact (212) by described channelizing line (214).
4. termination according to claim 1, is characterized in that, described housing (10) also comprises the first sealing gasket (111), and described contact portion (20) is connected with described the first connecting portion (11) by described the first sealing gasket (111).
5. termination according to claim 1, is characterized in that, described termination also comprises insulation sleeve (31), and described insulation sleeve (31) is set on described leading part (30).
6. termination according to claim 1, is characterized in that, described leading part (30) and described contact portion (20) vertical setting mutually.
7. termination according to claim 1, is characterized in that, described the first connecting portion (11) is the first flange, and described the second connecting portion (12) is the second flange.
8. termination according to claim 1, is characterized in that, described insulating gas is sulfur hexafluoride.
9. a cable voltage method of testing, is characterized in that:
Termination described in any one in claim 1-8 is provided;
The cable termination of cable to be tested (40) is inserted in the cavity (13) of housing (10) of described termination, and the cable termination of described cable to be tested (40) is connected with second connecting portion (12) of described housing (10);
The leading part of described termination (30) is electrically connected with voltage-resisting test apparatus;
Air valve (14) by described termination is extracted the air in described cavity (13) out, and is filled with insulating gas in described cavity (13);
Use described voltage-resisting test apparatus to carry out voltage-withstand test to described cable to be tested.
10. cable voltage method of testing according to claim 9, is characterized in that, between the cable termination (40) of described the second connecting portion (12) and described cable under test, the second sealing gasket (121) is also set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210461372.5A CN103809085B (en) | 2012-11-15 | 2012-11-15 | Termination and cable voltage method of testing for cable voltage test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210461372.5A CN103809085B (en) | 2012-11-15 | 2012-11-15 | Termination and cable voltage method of testing for cable voltage test |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103809085A true CN103809085A (en) | 2014-05-21 |
| CN103809085B CN103809085B (en) | 2016-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210461372.5A Active CN103809085B (en) | 2012-11-15 | 2012-11-15 | Termination and cable voltage method of testing for cable voltage test |
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| Country | Link |
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| CN (1) | CN103809085B (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104535852A (en) * | 2014-12-11 | 2015-04-22 | 国家电网公司 | Oscillatory wave testing system |
| CN104931864A (en) * | 2015-06-12 | 2015-09-23 | 国网上海市电力公司 | Puncture test-used insulation cover suitable for cable cabin embedded condition |
| CN104931865A (en) * | 2015-06-12 | 2015-09-23 | 国网上海市电力公司 | Insulation cover for high-voltage cable line puncture tests and test method |
| CN106683554A (en) * | 2016-11-18 | 2017-05-17 | 广州供电局有限公司 | GIS (gas insulated switchgear) high-voltage cable accessory installation simulation device and simulation method thereof |
| CN109638505A (en) * | 2018-12-28 | 2019-04-16 | 黄江涛 | Wire and cable pressure test special joint |
| CN110007203A (en) * | 2019-05-07 | 2019-07-12 | 国网上海市电力公司 | A kind of high-tension cable pressure test component |
| CN110749806A (en) * | 2019-09-27 | 2020-02-04 | 浙江大有实业有限公司电缆工程分公司 | 110kV cable GIS terminal voltage withstand test system capable of restoring actual working state |
| CN111487490A (en) * | 2020-04-02 | 2020-08-04 | 湖南橡博电气有限公司 | Bus connecting device and inflatable ring main unit performance test system method based on bus connecting device |
| CN112161882A (en) * | 2020-08-25 | 2021-01-01 | 浙江盛洋科技股份有限公司 | Accelerated anti-fatigue cable testing process |
| CN113325278A (en) * | 2021-05-25 | 2021-08-31 | 长春捷翼汽车零部件有限公司 | Insulation and voltage resistance detection method and detection equipment for wire harness and automobile wire harness assembly line |
| CN113504444A (en) * | 2021-09-13 | 2021-10-15 | 国网江西省电力有限公司电力科学研究院 | GIS is with multi-functional withstand voltage test frock |
| CN114047404A (en) * | 2021-11-06 | 2022-02-15 | 无锡德刚精工机电设备有限公司 | Integrated test tool for high-voltage cable accessory intermediate joint and GIS |
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| CN202886542U (en) * | 2012-11-15 | 2013-04-17 | 国家电网公司 | Junction device for cable high-voltage resistance test |
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2012
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Patent Citations (5)
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| JP2633613B2 (en) * | 1988-03-23 | 1997-07-23 | 昭和電線電纜株式会社 | Simple termination for power cable withstand voltage test |
| CN101609102A (en) * | 2009-07-13 | 2009-12-23 | 上海三原电缆附件有限公司 | Mesolow crosslinked cable industrial frequency withstand voltage, local discharge test terminal structure |
| CN201886101U (en) * | 2010-12-22 | 2011-06-29 | 江苏省电力公司无锡供电公司 | Tester for cable geographic information system (GIS) terminal |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104535852A (en) * | 2014-12-11 | 2015-04-22 | 国家电网公司 | Oscillatory wave testing system |
| CN104931864A (en) * | 2015-06-12 | 2015-09-23 | 国网上海市电力公司 | Puncture test-used insulation cover suitable for cable cabin embedded condition |
| CN104931865A (en) * | 2015-06-12 | 2015-09-23 | 国网上海市电力公司 | Insulation cover for high-voltage cable line puncture tests and test method |
| CN104931864B (en) * | 2015-06-12 | 2018-03-30 | 国网上海市电力公司 | A kind of pressure test insulating boot embedded suitable for cable position in storehouse |
| CN106683554A (en) * | 2016-11-18 | 2017-05-17 | 广州供电局有限公司 | GIS (gas insulated switchgear) high-voltage cable accessory installation simulation device and simulation method thereof |
| CN109638505B (en) * | 2018-12-28 | 2020-09-15 | 廊坊市东电腾达电力工程有限公司 | Special joint for wire and cable withstand voltage test |
| CN109638505A (en) * | 2018-12-28 | 2019-04-16 | 黄江涛 | Wire and cable pressure test special joint |
| CN110007203A (en) * | 2019-05-07 | 2019-07-12 | 国网上海市电力公司 | A kind of high-tension cable pressure test component |
| CN110749806A (en) * | 2019-09-27 | 2020-02-04 | 浙江大有实业有限公司电缆工程分公司 | 110kV cable GIS terminal voltage withstand test system capable of restoring actual working state |
| CN111487490A (en) * | 2020-04-02 | 2020-08-04 | 湖南橡博电气有限公司 | Bus connecting device and inflatable ring main unit performance test system method based on bus connecting device |
| CN112161882A (en) * | 2020-08-25 | 2021-01-01 | 浙江盛洋科技股份有限公司 | Accelerated anti-fatigue cable testing process |
| CN113325278A (en) * | 2021-05-25 | 2021-08-31 | 长春捷翼汽车零部件有限公司 | Insulation and voltage resistance detection method and detection equipment for wire harness and automobile wire harness assembly line |
| WO2022247551A1 (en) * | 2021-05-25 | 2022-12-01 | 长春捷翼汽车零部件有限公司 | Insulation withstand voltage detection method and detection device for wiring harness, and automobile wiring harness assembly line |
| CN113504444A (en) * | 2021-09-13 | 2021-10-15 | 国网江西省电力有限公司电力科学研究院 | GIS is with multi-functional withstand voltage test frock |
| CN114047404A (en) * | 2021-11-06 | 2022-02-15 | 无锡德刚精工机电设备有限公司 | Integrated test tool for high-voltage cable accessory intermediate joint and GIS |
| CN114047404B (en) * | 2021-11-06 | 2023-12-22 | 无锡德刚精工机电设备有限公司 | High-voltage cable accessory intermediate head and GIS's integrated test fixture |
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|---|---|
| CN103809085B (en) | 2016-12-21 |
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Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Co-patentee after: Beijing Electric Power Corp. Patentee after: State Grid Corporation of China Co-patentee after: Beijing Electric Power Engineering Co., Ltd. Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Co-patentee before: Beijing Electric Power Corp. Patentee before: State Grid Corporation of China Co-patentee before: Beijing Power Engineering Company |
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