CN202886542U - Junction device for cable high-voltage resistance test - Google Patents
Junction device for cable high-voltage resistance test Download PDFInfo
- Publication number
- CN202886542U CN202886542U CN 201220605064 CN201220605064U CN202886542U CN 202886542 U CN202886542 U CN 202886542U CN 201220605064 CN201220605064 CN 201220605064 CN 201220605064 U CN201220605064 U CN 201220605064U CN 202886542 U CN202886542 U CN 202886542U
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- cable
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- termination
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- 238000012360 testing method Methods 0.000 title claims abstract description 43
- 238000007789 sealing Methods 0.000 claims description 11
- 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
- 230000006378 damage Effects 0.000 abstract description 5
- 208000027418 Wounds and injury Diseases 0.000 description 4
- 208000014674 injury Diseases 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 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
- 239000004020 conductor Substances 0.000 description 1
- 230000007613 environmental effect Effects 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
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Abstract
The utility model provides a junction device for a cable high-voltage resistance test, which 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 is connected with the contact part; and the air valve is used for filling insulating gas into the cavity, and 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 internally filled with the insulating gas which is the same as that in a gas insulated switchgear (GIS), 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 utility model relates to power domain, more specifically, relates to a kind of termination for the cable voltage test.
Background technology
In the prior art, need do AC voltage withstand test before 110kV and above cable and the GIS putting equipment in service.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 cable splice to be in the Insulated Hold of GIS equipment, to the cable pressurization, carries out voltage-withstand test again.
In the prior art, the method for cable being carried out voltage-withstand test is, cable is installed on the GIS equipment, and on GIS equipment the installation testing sleeve pipe, by high-voltage connection GIS equipment and cable are carried out AC voltage withstand test with the withstand voltage standard of cable.Can find out that the voltage-withstand test of cable obviously is longer than the voltage-withstand test pressing time of GIS equipment pressing time, can be in for a long time high-voltage state to the parts of GIS equipment like this, can be to GIS equipment injury.And, for the GIS equipment that does not possess the condition that experiment thimble is installed, then can't carry out the ac voltage withstanding test to cable.
The utility model content
The utility model aims to provide a kind of termination for the cable voltage test, with cable being installed on the GIS equipment of solution prior art, and when again cable being carried out voltage-withstand test, can be to the problem of GIS equipment injury.
For solving the problems of the technologies described above, provide a kind of termination for the cable voltage test according to the utility model, comprising: housing, housing comprise the first connecting portion and the second connecting portion that is used to connect cable to be tested, the inside of housing forms cavity; Contact section, at least a portion of contact section is arranged in the cavity, and contact section is connected with housing by the first connecting portion; Leading part, leading part are arranged on the outside of cavity, and leading part is connected with contact section; Be used for being filled with in cavity the air valve of insulating gas, air valve is arranged on the housing.
Further, contact section comprises contact mechanism and electrode, and the first end of electrode is connected with the first connecting portion, and contact mechanism comprises: contact cover, contact cover are set in the second end of electrode, form limit chamber between the second end of contact cover and electrode; Moving contact, moving contact are arranged in the limit chamber, and moving contact is electrically connected with electrode; Flexible member, flexible member are arranged in the limit chamber, and an 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 section is connected with the first connecting portion by the first sealing gasket.
Further, termination also comprises insulation sleeve, and insulation sleeve is set on the leading part.
Further, leading part and the mutually vertical setting of contact section.
Further, the first connecting portion is the first flange, and the second connecting portion is the second flange.
Further, insulating gas is sulfur hexafluoride.
The cable termination of test cable is arranged in the cavity of termination, be filled with in the cavity with GIS equipment in same insulating gas, so just simulated cable termination and be installed in working environment on the GIS equipment.Therefore, can carry out voltage-withstand test to cable under test by termination, not test again on the GIS equipment and will cable under test be installed in, so just avoid the voltage-withstand test of cable under test to GIS equipment injury.
Description of drawings
The accompanying drawing that consists of the application's a part is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not consist of improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 has schematically shown the synoptic diagram that the termination in the utility model is connected with cable to be tested; And
Fig. 2 has schematically shown the connection diagram of the cable termination of the contact section of the termination in the utility model and cable to be tested.
Reference numeral among the 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 section; 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 embodiment of the present utility model is elaborated, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
The utility model provides a kind of termination for the cable voltage test, as shown in Figure 1, this termination comprises: housing 10, housing 10 comprise the first connecting portion 11 and the second connecting portion 12 that is used to connect cable to be tested, and the inside of housing 10 forms cavity 13; Contact section 20, at least a portion of contact section 20 is arranged in the cavity 13, and contact section 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 section 20; Be used for being filled with in cavity 13 air valve 14 of insulating gas, air valve 14 is arranged on the housing 10.
As shown in Figure 1, the cable termination 40 of cable to be tested is arranged in the cavity 13 of termination, be filled with in the cavity 13 with GIS equipment in same insulating gas, so just simulated cable termination 40 and be installed in working environment on the GIS equipment.Therefore, can carry out voltage-withstand test to cable under test by termination, not test again on the GIS equipment and will cable under test be installed in, so just avoid the voltage-withstand test of cable under test to GIS equipment injury.
Preferably, the first connecting portion 11 is first flanges, and the second connecting portion 12 is second flanges.The first flange is connected with three-flange on being arranged on contact section 20, and the second flange is connected with the 4th flange on the cable termination that is arranged on cable under test.
Preferably, insulating gas is sulfur hexafluoride.Sulfur hexafluoride gas namely is the insulating gas that is filled with in the GIS equipment, has good insulating property.Simultaneously, be filled with sulfur hexafluoride gas in the cavity 13, can also guarantee cable under test is carried out when withstand voltage, cable is to housing 10 discharges.
Preferably, as shown in Figure 2, contact section 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, forms limit chamber 215 between the second end of contact cover 211 and electrode 22; Moving contact 212, moving contact 212 are arranged in the limit chamber 215, and moving contact 212 is electrically connected with electrode 22; Flexible member 213, flexible member 213 are arranged in the limit chamber 215, and an 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 installed in the cavity 13 of termination when interior, cable termination 40 contacts with moving contact 212 and conducting, and simultaneously, cable termination 40 needs compression compression elastic elements 213 1 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, also be electrically connected by channelizing line 214 between electrode 22 and the moving contact 212, thereby further guaranteed the conducting of electrode 22 with moving contact 212.
Preferably, housing 10 also comprises the first sealing gasket 111, and contact section 20 is connected with the first connecting portion 11 by the first sealing gasket 111.Preferably, as shown in Figure 1, also be provided with the second sealing gasket 121 between the second connecting portion 12 and the cable under test.The first sealing gasket 111 and the second sealing gasket 121 can guarantee the impermeability of cavity 13, prevent that the insulating gas leakage from causing the wireline test environmental evolution, and then cause the voltage-withstand test of cable inaccurate.
Preferably, termination also comprises insulation sleeve 31, and insulation sleeve 31 is set on the leading part 30.
Preferably, leading part 30 and the 20 mutual vertical settings of contact section.Like this, termination is L-shaped, is convenient to also can reduce the horizontal length of termination at leading part 30 place's connecting test lead-in wires, saves the space.
Preferably, if the cable termination of cable under test is the cable termination of short type, be that length is the cable termination of 470mm, when the cable termination of the short type with this kind is fit in the cavity 13 of termination, setting adds long conductor between cable termination and moving contact 212, and guaranteeing can conducting between cable and the contact section 20.
Be preferred embodiment of the present utility model only below, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (8)
1. a termination that is used for the cable voltage test is characterized in that, comprising:
Housing (10), described housing (10) comprise the first connecting portion (11) and the second connecting portion (12) that is used to connect cable to be tested, and the inside of described housing (10) forms cavity (13);
Contact section (20), at least a portion of described contact section (20) is arranged in the described cavity (13), and described contact section (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 section (20);
Be used for being filled with in described cavity (13) air valve (14) of insulating gas, described air valve (14) is arranged on the described housing (10).
2. termination according to claim 1, it is characterized in that, described contact section (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), forms limit chamber (215) between the second end of described contact cover (211) and described electrode (22);
Moving contact (212), described moving contact (212) are arranged in the described limit chamber (215), and described moving contact (212) is electrically connected with described electrode (22);
Flexible member (213), described flexible member (213) are arranged in the described limit chamber (215), and an 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 section (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 the described leading part (30).
6. termination according to claim 1 is characterized in that, described leading part (30) and mutually vertical setting of described contact section (20).
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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220605064 CN202886542U (en) | 2012-11-15 | 2012-11-15 | Junction device for cable high-voltage resistance test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220605064 CN202886542U (en) | 2012-11-15 | 2012-11-15 | Junction device for cable high-voltage resistance test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202886542U true CN202886542U (en) | 2013-04-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220605064 Expired - Lifetime CN202886542U (en) | 2012-11-15 | 2012-11-15 | Junction device for cable high-voltage resistance test |
Country Status (1)
| Country | Link |
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| CN (1) | CN202886542U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103698558A (en) * | 2013-11-27 | 2014-04-02 | 国家电网公司 | 110kV GIS (Gas Insulated Switchgear) cable alternating current withstand voltage test high-tension bushing |
| CN103809085A (en) * | 2012-11-15 | 2014-05-21 | 国家电网公司 | Junction device for cable high-voltage resistance test and cable high-voltage resistance test |
| CN105572550A (en) * | 2015-12-18 | 2016-05-11 | 平高集团有限公司 | Insulating test piece and test electrode device using same |
| CN108007958A (en) * | 2018-01-24 | 2018-05-08 | 无锡圣敏传感科技股份有限公司 | Generating means and detecting system |
-
2012
- 2012-11-15 CN CN 201220605064 patent/CN202886542U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103809085A (en) * | 2012-11-15 | 2014-05-21 | 国家电网公司 | Junction device for cable high-voltage resistance test and cable high-voltage resistance test |
| CN103809085B (en) * | 2012-11-15 | 2016-12-21 | 国家电网公司 | Termination and cable voltage method of testing for cable voltage test |
| CN103698558A (en) * | 2013-11-27 | 2014-04-02 | 国家电网公司 | 110kV GIS (Gas Insulated Switchgear) cable alternating current withstand voltage test high-tension bushing |
| CN105572550A (en) * | 2015-12-18 | 2016-05-11 | 平高集团有限公司 | Insulating test piece and test electrode device using same |
| CN105572550B (en) * | 2015-12-18 | 2019-01-22 | 平高集团有限公司 | A kind of insulation test specimen and the test electrode apparatus using the insulation test specimen |
| CN108007958A (en) * | 2018-01-24 | 2018-05-08 | 无锡圣敏传感科技股份有限公司 | Generating means and detecting system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |