CN102749535A - Electrical property testing method for 220KV transmission main power transformation device - Google Patents
Electrical property testing method for 220KV transmission main power transformation device Download PDFInfo
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- CN102749535A CN102749535A CN2012101808755A CN201210180875A CN102749535A CN 102749535 A CN102749535 A CN 102749535A CN 2012101808755 A CN2012101808755 A CN 2012101808755A CN 201210180875 A CN201210180875 A CN 201210180875A CN 102749535 A CN102749535 A CN 102749535A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 15
- 238000012360 testing method Methods 0.000 title abstract description 13
- 230000009466 transformation Effects 0.000 title abstract 3
- 238000009413 insulation Methods 0.000 claims abstract description 16
- 230000005611 electricity Effects 0.000 claims description 21
- 238000005259 measurement Methods 0.000 claims description 11
- 230000007423 decrease Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 230000003068 static effect Effects 0.000 claims description 6
- 238000011056 performance test Methods 0.000 claims description 4
- 230000009194 climbing Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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Abstract
The invention provides an electrical property testing method for 220KV transmission main power transformation device. Connecting line holes arranged on all of a mainline board, a centerline board and a sub-line board are connected with connecting line holes of a connecting line hole board, and connecting lines of connectors fixed on a fixed line board are combined together and connected with a short circuit binding post of a direct current resistor tester with a tester output connecting line. When electrical property is measured, the connecting line heads are respectively contacted with the connecting line holes positioned on the connecting line hole board to form a measuring access. Insulation resistance of a power-transmission device, leakage current and medium electrical loss values are judged according to measured values of the direct current resistor tester. Measuring connecting lines are assembled and disassembled twice, wiring times is reduced by over 50%, working efficiency is improved, and potential safety hazards are reduced. The measuring connecting lines are designed ingeniously and are attractive and convenient to carry. Besides, measuring safety and working efficiency can be improved. The electrical property testing method is suitable for measuring application to electrical property indexes of the power transformation device of a power transmission line.
Description
Technical field
What the present invention proposed is the method for testing of field of power transmission equipment performance, specifically a kind of 220KV transmission of electricity main transformer electricity equipment electric performance test method.
Background technology
Safe reliability in order to ensure the exhausted guarantor test of 220kV/66 kV main transformer; To the equal 3m nearly of 220kV side bushing height; And be difficult for climbing, generally all be to use the insulating ladder climbing to articulate transformer top conductive bar, after measurement finishes; Need to climb and change through insulating ladder again to articulate other slotted line, nearly 20 ability of working continuously are repeatedly accomplished the changing-over test wire.
When main transformer was carried out preventive trial, measurement insulation resistance and absorptance, direct current resistance, leakage current, medium electricity undermined each pilot project of electrosurgical trocar damage and all need repeatedly wiring.
Generally, to 220kV sleeve pipe hanging wire, hang A, B, C, the continuous wiring of O with the insulating ladder climbing respectively; The 66kV sleeve pipe is directly climbed the transformer top and is hung Am, Bm, Cm, Om; The 10kV sleeve pipe is directly climbed the transformer top and is hung a, b, c power transmission line.
Measurement insulation resistance and absorptance:
(1) A, B, C, O phase short circuit connect the megohmmeter high-pressure side, Am, Bm, Cm, Om phase short circuit and ground connection, a, b, c phase short circuit and ground connection;
(2) Am, Bm, Cm, Om phase short circuit connect the megohmmeter high-pressure side, A, B, C, O phase short circuit and ground connection, a, b, c phase short circuit and ground connection;
(3) a, b, c phase short circuit connect the megohmmeter high-pressure side, A, B, C, O phase short circuit and ground connection, Am, Bm, Cm, Om phase short circuit and ground connection;
Leakage current and medium electricity decrease similar with the insulation measurement mode, are tried winding to connect high-pressure side, and be non-by examination winding short circuit and ground connection.
After measurement finishes, climb insulating ladder once more and take off measurement connecting line and site clearing.
When carrying out insulation resistance absorptance, leakage current and medium electricity damage, direct current resistance test, all will climb insulating ladder up and down through repeatedly changing wiring, the danger of test is increased, unsafe factor increases.
Summary of the invention
For ease transmission line of electricity is carried out the test that insulation resistance, Leakage Current and medium electricity decrease, the present invention proposes a kind of 220KV transmission of electricity main transformer electricity equipment electrical performance test method.This method is utilized three loop instrument for measuring DC resistance, through connecting the short circuit binding post, measures main transformer electricity equipment electrical property state index through insulation rope fixed suspension, solves the apparatus insulated resistance of main transformer electricity, Leakage Current and medium electricity and decreases the technical matters that test detects.
Technical scheme:
Line hole set on main line plate, center line plate and the by-pass plate is connected with the line hole of line orifice plate through the insulation rope; The connecting line that is fixedly coupled head on the static line plate is combined into together and is connected with the short circuit binding post of the instrument for measuring DC resistance that is provided with tester output connecting line; During measurement; With the line head respectively with the line orifice plate on the line hole contact, form to measure path.
Insulation resistance, Leakage Current and the medium electricity of judging transmission facility according to the measured value of instrument for measuring DC resistance decrease numerical value.
Good effect is measured the connecting line extension and is torn open 2 times, reduces connection times more than 50%, has improved work efficiency, has reduced potential safety hazard.Measure the connecting line deft design, attractive in appearance, be easy to carry.And can improve and measure security and work efficiency.The measurement of suitable converting equipment electrical performance indexes as transmission line of electricity is used.
Description of drawings
Fig. 1 measures connection line figure for the present invention
Fig. 2 connects orifice plate figure for the present invention
Fig. 3 is static line plate of the present invention and line head figure
Among the figure, 1. main line plate, 2. center line plate, 3. by-pass plate, 4. instrument for measuring DC resistance, 4.1. tester output connecting line, 5. line orifice plate, 5.1. line hole, 6. static line plate, 7. line head, 7.1. connecting line.
Embodiment
As shown in Figure 1; Main line plate 1, center line plate 2 and by-pass plate 3 are connected with the short circuit binding post of instrument for measuring DC resistance 4 through the insulation rope; Side at instrument for measuring DC resistance is provided with tester output connecting line 4.1, decreases through instrument for measuring DC resistance measurement insulation resistance, Leakage Current and medium electricity.
A, B, C, O wiring hole are set on the main line plate, and the center line plate is provided with Am, Bm, Cm, Om wiring hole, and the by-pass plate is provided with a, b, c wiring hole.
Wiring hole is used to connect being connected and measurement of insulation rope and instrument for measuring DC resistance.
L that marks among the figure and E end are the short circuit joint pin.
As shown in Figure 2, for convenient test, line orifice plate 5 is set, on the line orifice plate, be provided with line hole 5.1.
As shown in Figure 3, for convenient test, on static line plate 6, be fixed with connector 7, on connector, be provided with connecting line 7.1.
Operating process of the present invention:
On the line orifice plate set line hole respectively with main line plate, center line plate and by-pass plate on the connecting hole that is provided be connected through the insulation rope; The line head that connecting hole quantity set on fixing and the line orifice plate on the static line plate is identical contacts respectively with the connecting hole on the connecting line plate; And the connecting line that will be connected with the line head is connected with the short circuit joint pin of direct current resistance measurer respectively; Reading through instrument for measuring DC resistance; The numerical value that the insulation resistance of perception main line plate, center line plate and by-pass plate and transmission facility, Leakage Current and medium electricity decrease, the replacing and the maintenance of decision transmission facility.
During test, connecting line is combined into together is connected with the short circuit binding post of instrument for measuring DC resistance.
Characteristics:
The present invention can reduce human body and carry out converting equipment when monitoring number of times of insulating ladder and hanging wire up and down, reduces labour intensity, saving man-hour, raises the efficiency.
Claims (1)
1. 220KV transmission of electricity main transformer electricity equipment electric performance test method; It is characterized in that: main line plate (1), center line plate (2) and by-pass plate (3) are gone up set line hole be connected with the line hole (5.1) of line orifice plate (5) through the insulation rope; The connecting line that is fixedly coupled head (7) on the static line plate (6) is combined into together and is connected with the short circuit binding post of the instrument for measuring DC resistance (4) that is provided with tester output connecting line (4.1); During measurement; With the line head respectively with the line orifice plate on the line hole contact, form to measure path;
Insulation resistance, Leakage Current and the medium electricity of judging transmission facility according to the measured value of instrument for measuring DC resistance decrease numerical value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210180875.5A CN102749535B (en) | 2012-06-05 | 2012-06-05 | Electrical property testing method for 220KV transmission main power transformation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210180875.5A CN102749535B (en) | 2012-06-05 | 2012-06-05 | Electrical property testing method for 220KV transmission main power transformation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102749535A true CN102749535A (en) | 2012-10-24 |
| CN102749535B CN102749535B (en) | 2014-09-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210180875.5A Active CN102749535B (en) | 2012-06-05 | 2012-06-05 | Electrical property testing method for 220KV transmission main power transformation device |
Country Status (1)
| Country | Link |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5276402A (en) * | 1992-02-28 | 1994-01-04 | Hipotronics, Inc. | Three-phase transformer testing method and system |
| CN201184902Y (en) * | 2008-04-09 | 2009-01-21 | 江西赣州供电公司 | Electric force test device |
| CN201780340U (en) * | 2009-12-04 | 2011-03-30 | 牡丹江电业局 | Wiring operation box of high-voltage test |
| CN102156242A (en) * | 2011-03-25 | 2011-08-17 | 河北省电力研究院 | Method for testing transformer insulation combination |
-
2012
- 2012-06-05 CN CN201210180875.5A patent/CN102749535B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5276402A (en) * | 1992-02-28 | 1994-01-04 | Hipotronics, Inc. | Three-phase transformer testing method and system |
| CN201184902Y (en) * | 2008-04-09 | 2009-01-21 | 江西赣州供电公司 | Electric force test device |
| CN201780340U (en) * | 2009-12-04 | 2011-03-30 | 牡丹江电业局 | Wiring operation box of high-voltage test |
| CN102156242A (en) * | 2011-03-25 | 2011-08-17 | 河北省电力研究院 | Method for testing transformer insulation combination |
Non-Patent Citations (1)
| Title |
|---|
| 管金云 等: "变压器绕组直流电阻快速测试方法", 《南华大学学报》, vol. 18, no. 3, 30 September 2004 (2004-09-30), pages 88 - 91 * |
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| Publication number | Publication date |
|---|---|
| CN102749535B (en) | 2014-09-24 |
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| C06 | Publication | ||
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| ASS | Succession or assignment of patent right |
Owner name: STATE GRID CORPORATION OF CHINA Effective date: 20121213 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20121213 Address after: 125000 Huludao City, Liaoning province Longgang district on the road No. 5 Applicant after: Huludao Power Supply Company, Liaoning Electric Power Co., Ltd. Applicant after: State Grid Corporation of China Address before: 125000 Huludao City, Liaoning province Longgang district on the road No. 5 Applicant before: Huludao Power Supply Company, Liaoning Electric Power Co., Ltd. |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |