CN102455401A - Device for improving test efficiency of capacitive current transformer - Google Patents
Device for improving test efficiency of capacitive current transformer Download PDFInfo
- Publication number
- CN102455401A CN102455401A CN2010105120980A CN201010512098A CN102455401A CN 102455401 A CN102455401 A CN 102455401A CN 2010105120980 A CN2010105120980 A CN 2010105120980A CN 201010512098 A CN201010512098 A CN 201010512098A CN 102455401 A CN102455401 A CN 102455401A
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- China
- Prior art keywords
- current transformer
- capacitive current
- test
- flakes
- ground
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000012360 testing method Methods 0.000 title claims abstract description 28
- 238000009413 insulation Methods 0.000 claims abstract description 16
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims description 2
- 239000007769 metal material Substances 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000004382 potting Methods 0.000 description 6
- 230000005283 ground state Effects 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
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- Testing Relating To Insulation (AREA)
Abstract
The invention discloses a device for improving the test efficiency of a capacitive current transformer, which is suitable for an insulation test of the capacitive current transformer. The tap end of the capacitive current transformer is led to a test junction box by a shielding insulation lead, and a high voltage test is performed by regulating the state of a grounding connecting sheet in the test junction box; and matching of workers of other work type is not needed during testing, so manpower and time are saved, high-altitude operations are avoided, the safety factor of the operations is improved, and apparatuses such as a hopper arm trolley and the like are eliminated.
Description
Technical field
The present invention is applicable to the capacitive current transformer Insulation Test.
Background technology
At present, the end of capacitive current transformer screen end is directly grounded in the Operation of Electric Systems, and when carrying out high-potting, requires end screen end to be just will ground wire to be removed state of insulation, restores to the original state after the off-test again.This tears open, the need of work of ground wire is employed apparatuses such as ladder or bucket arm vehicle, and wants several different professionals to carry out work high above the ground.Work efficiency and safety coefficient are low.
Summary of the invention
In order to overcome by existing capacitive current transformer Unit Installation, work brings the deficiency of many inconvenience to high-potting.The device of raising capacitive current transformer experiment work efficient provided by the invention need not other professionals and cooperates in carrying out high-potting work, avoided ascend operation, need not to use aids such as ladder, bucket arm vehicle.Thereby make the work of capacitive current transformer high-potting can be safely, accomplish accurately and rapidly, improved work efficiency and safety coefficient.
The principle of this device is: capacitive current transformer end screen is linked to each other with coupling bolt (8) in the test connection box (7) of being convenient to operate the wiring height and position through insulator pin (6), through being fixed on ground connection (9) the last ground loop that shields of formation that links to each other with ground wire (3) in flakes on the insulcrete (11).To guarantee the normal operation of mutual inductor.
Before making an experiment, ground connection is opened in bolt (8), (10) at (9) two ends in flakes in will scheming earlier, takes off ground connection (9) in flakes.Owing to (8) insulation against ground this moment, reached the condition of testing requirements, can test.After test connects bundle, use again bolt (8) and (10) with ground connection in flakes (9) fastening, capacitive current transformer end is shielded reverts to ground state, mutual inductor just can normally move.
The technical solution adopted for the present invention to solve the technical problems is: through the shielding insulation lead-in wire end screen of capacitive current transformer is held to cause the test connection box; The test connection box is installed in the position of being convenient to operate the wiring height apart from ground, through ground connection in the test connection box in flakes the adjustment of state carry out high-potting.
The invention has the beneficial effects as follows: under the situation that does not influence test accuracy, the quantity that reduces a staff has improved the high-potting work efficiency of capacitive current transformer; Avoid the use of the apparatuses of ascending a height such as ascend operation and bucket arm vehicle, improved the security of work.
Description of drawings
The present invention will be described in conjunction with accompanying drawing:
Fig. 1 capacitive current transformer present situation.
Fig. 2 adds the wiring schematic diagram behind this device.
The enlarged drawing of this device of Fig. 3.
Fig. 4 shielding insulation line sectional view.
1. capacitive current transformers among the figure, the 2. principle schematic of this device, 3. ground wire, 4. ground; 5. terminal is shielded at the end of capacitive current transformer, 6. shielding insulation lead-in wire, 7. test connection box, 8. mutual inductor side fastening bolt; Ground connection in flakes, 10. ground wire side fastening bolt, 11. insulation support plates; 12. conductor, 13. insulation courses, 14. screen layers.
Embodiment
The specific embodiment of the invention is as shown in Figure 2; Capacitive current transformer end screen is linked to each other with mutual inductor side fastening bolt (8) in the test connection box (7) of being convenient to operate wiring height and position place through shielding insulation lead-in wire (6), through being fixed on ground connection (9) the last ground loop that shields of formation that links to each other with ground wire (10) in flakes on the insulcrete (11).To guarantee the normal operation of mutual inductor.
Before making an experiment, ground connection is opened in bolt (8), (10) at (9) two ends in flakes in will scheming earlier, takes off ground connection (9) in flakes.Owing to (8) insulation against ground this moment, reached the condition of testing requirements, can test.After test connects bundle, use again bolt (8), (10) with ground connection in flakes (9) fastening, capacitive current transformer end screen reverts to ground state, mutual inductor just can normally move.
Claims (3)
1. device that improves the capacitive current transformer test efficiency; It is characterized in that: capacitive current transformer end screen is linked to each other with mutual inductor side fastening bolt (8) in the test connection box (7) of being convenient to operate wiring height and position place through shielding insulation lead-in wire (6), through being fixed on ground connection (9) the last ground loop that shields of formation that links to each other with ground wire (10) in flakes on the insulcrete (11).
2. a kind of device that improves the capacitive current transformer test efficiency according to claim 1; It is characterized in that: test connection box inside is led in flakes by two insulation columns and one and is constituted; The pillar two ends have that screw one end is fixed on the box body, the other end connects and leads in flakes; Shell and box door adopt metal material, are fixed on the body of rod through anchor ear.
3. a kind of device that improves the capacitive current transformer test efficiency according to claim 1 is characterized in that: the shielding insulation lead-in wire is made up of screen layer, insulation course, conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105120980A CN102455401A (en) | 2010-10-20 | 2010-10-20 | Device for improving test efficiency of capacitive current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105120980A CN102455401A (en) | 2010-10-20 | 2010-10-20 | Device for improving test efficiency of capacitive current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102455401A true CN102455401A (en) | 2012-05-16 |
Family
ID=46038812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105120980A Pending CN102455401A (en) | 2010-10-20 | 2010-10-20 | Device for improving test efficiency of capacitive current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102455401A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06265580A (en) * | 1993-03-16 | 1994-09-22 | Hitachi Ltd | Full-voltage interruption test equipment for gas insulated switchgear |
| CN1135607A (en) * | 1995-05-09 | 1996-11-13 | 住友电装株式会社 | Voltage-resistant test device |
| CN2826448Y (en) * | 2005-09-15 | 2006-10-11 | 北京天威瑞恒电气有限责任公司 | Insulated monitor for capacitance type insulator |
| CN101551436A (en) * | 2009-05-12 | 2009-10-07 | 重庆大学 | Barometric pressure humidity controllable local discharge test device |
| CN101615497A (en) * | 2009-05-20 | 2009-12-30 | 北京华电云通电力技术有限公司 | The integral connecting structure of transformer and current sensor |
| CN101702368A (en) * | 2009-11-26 | 2010-05-05 | 平高集团有限公司 | High voltage dry-type current transformer and ground protection method thereof |
| CN101793936A (en) * | 2010-02-11 | 2010-08-04 | 河南省电力公司商丘供电公司 | Insulation state online monitoring method for condenser type bushings |
| CN201600390U (en) * | 2009-12-10 | 2010-10-06 | 南京电气（集团）有限责任公司 | Tap measuring terminal of high voltage electrical apparatus |
-
2010
- 2010-10-20 CN CN2010105120980A patent/CN102455401A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06265580A (en) * | 1993-03-16 | 1994-09-22 | Hitachi Ltd | Full-voltage interruption test equipment for gas insulated switchgear |
| CN1135607A (en) * | 1995-05-09 | 1996-11-13 | 住友电装株式会社 | Voltage-resistant test device |
| CN2826448Y (en) * | 2005-09-15 | 2006-10-11 | 北京天威瑞恒电气有限责任公司 | Insulated monitor for capacitance type insulator |
| CN101551436A (en) * | 2009-05-12 | 2009-10-07 | 重庆大学 | Barometric pressure humidity controllable local discharge test device |
| CN101615497A (en) * | 2009-05-20 | 2009-12-30 | 北京华电云通电力技术有限公司 | The integral connecting structure of transformer and current sensor |
| CN101702368A (en) * | 2009-11-26 | 2010-05-05 | 平高集团有限公司 | High voltage dry-type current transformer and ground protection method thereof |
| CN201600390U (en) * | 2009-12-10 | 2010-10-06 | 南京电气（集团）有限责任公司 | Tap measuring terminal of high voltage electrical apparatus |
| CN101793936A (en) * | 2010-02-11 | 2010-08-04 | 河南省电力公司商丘供电公司 | Insulation state online monitoring method for condenser type bushings |
Non-Patent Citations (1)
| Title |
|---|
| 莫登斌等: "电容式CT/套管末屏接地故障的原因分析及对策探讨", 《变压器》 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE ELECTRIC NET CROP. Effective date: 20120927 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20120927 Address after: 154100 No. 2 wo he road, Hegang, Heilongjiang Applicant after: Hegang City Power Bureau Applicant after: State Grid Corporation of China Address before: 154100 No. 2 wo he road, Hegang, Heilongjiang Applicant before: Hegang City Power Bureau |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120516 |