CN203365548U - Transformer DC resistance tester - Google Patents
Transformer DC resistance tester Download PDFInfo
- Publication number
- CN203365548U CN203365548U CN 201320440129 CN201320440129U CN203365548U CN 203365548 U CN203365548 U CN 203365548U CN 201320440129 CN201320440129 CN 201320440129 CN 201320440129 U CN201320440129 U CN 201320440129U CN 203365548 U CN203365548 U CN 203365548U
- Authority
- CN
- China
- Prior art keywords
- transformer
- changeover switches
- connecting lines
- tester
- resistance
- 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.)
- Expired - Fee Related
Links
- 238000012360 testing method Methods 0.000 abstract description 18
- 238000000034 method Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
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- Measurement Of Resistance Or Impedance (AREA)
Abstract
The utility model discloses a transformer DC resistance tester. The tester comprises a case and connecting lines. The case is provided with leads, on which changeover switches are arranged. The connecting lines are connected to the leads via the changeover switches. There are two said changeover switches and three said connecting lines. The transformer DC resistance quick tester provided by the utility model comprises the changeover switches arranged on the leads, and three said connecting lines are connected to the leads via the changeover switches. The connecting lines are connected to the leads of a high-voltage side or a low-voltage side of the transformer. By connecting two changeover switches with the DC resistance tester and changing the positions of the switches, resistance of each coil inside the transformer is measured, so that steps for manually replacing wire clamps is reduced, test time is shortened, test precision is increased, and thus the work efficiency is improved.
Description
Technical field
The utility model relates to the technical field of electric power overhaul test, relates in particular to a kind of direct-current resistance tester for transformer.
Background technology
As everyone knows, in electric system, transformer is as important potential device at present, no matter be transformer that newly dispatch from the factory or operating, all will carry out the direct current resistance test according to the requirement of rules, because of the wiring group difference of transformer, the test connection method is also different.(Y connection need connect 0A, 0B, 0C, and the wiring of △ shape needs to connect AB, BC, CA).Existing instrument for measuring DC resistance only has two extension lines, can only test one group of coil wherein during each test, the test of other coil can only complete by the method for artificial replacing wire clamp, because the transformer extension line is very high apart from ground, need constantly upper and lower transformer back and forth of testing crew in changing the process of wire clamp, artificial prolongation the direct current resistance test period.And, while changing wire clamp, the adding of wire clamp pinched position, dynamics, surface of contact all can be because human factor causes difference at every turn, test findings certainly will be also different, so just likely cause testing crew according to test findings, the winding performance erroneous judgement of transformer to be broken.In addition, when changing wire clamp, Transformer Winding may fully not discharged, and can cause personal injury to testing crew.
The utility model content
The purpose of this utility model is to provide a kind of energy fast and reliable and time saving and energy saving direct-current resistance tester for transformer.
For realizing that the technical scheme that the purpose of this utility model adopts is: a kind of direct-current resistance tester for transformer, comprise casing and connecting line, described casing is provided with lead-in wire, on described lead-in wire, is provided with change-over switch, and described connecting line is connected with described lead-in wire by change-over switch.
Described change-over switch is 2.
Described connecting line is 3.
A kind of transformer dc high speed tester of the present utility model is provided with change-over switch on described lead-in wire, described connecting line is connected with described lead-in wire by change-over switch, described connecting line is 3, with connecting line, with the extension line of high voltage side of transformer or low-pressure side, be connected, by two switches, with instrument for measuring DC resistance, be connected, utilize the position of the switch transformation reach the measurement of respectively organizing coil resistance in transformer, thereby reduced the step of artificial replacing wire clamp, shortened test period, improved test accuracy, and then increased work efficiency.
The accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described further:
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, a kind of direct-current resistance tester for transformer of the present utility model, comprise casing 1 and connecting line 2, described casing is provided with lead-in wire 3, be provided with change-over switch 4 on described lead-in wire, described connecting line 2 is connected with described lead-in wire 3 by change-over switch 4, and described change-over switch is 2, and described connecting line is 3.
A kind of transformer dc high speed tester of the present utility model is provided with change-over switch on described lead-in wire, described connecting line is connected with described lead-in wire by change-over switch, described connecting line is 3, with connecting line, with the extension line of high voltage side of transformer or low-pressure side, be connected, by two switches, with instrument for measuring DC resistance, be connected, utilize the position of the switch transformation reach the measurement of respectively organizing coil resistance in transformer, thereby reduced the step of artificial replacing wire clamp, shortened test period, improved test accuracy, and then increased work efficiency.
Claims (3)
1. a direct-current resistance tester for transformer, it is characterized in that: comprise casing and connecting line, described casing is provided with lead-in wire, on described lead-in wire, is provided with change-over switch, and described connecting line is connected with described lead-in wire by change-over switch.
2. direct-current resistance tester for transformer as claimed in claim 1, it is characterized in that: described change-over switch is 2.
3. direct-current resistance tester for transformer as claimed in claim 1, it is characterized in that: described connecting line is 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320440129 CN203365548U (en) | 2013-07-23 | 2013-07-23 | Transformer DC resistance tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320440129 CN203365548U (en) | 2013-07-23 | 2013-07-23 | Transformer DC resistance tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203365548U true CN203365548U (en) | 2013-12-25 |
Family
ID=49813293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320440129 Expired - Fee Related CN203365548U (en) | 2013-07-23 | 2013-07-23 | Transformer DC resistance tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203365548U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104076208A (en) * | 2014-07-18 | 2014-10-01 | 国家电网公司 | Transformer direct current resistance testing method and testing clamp with adjustable opening |
| CN106841705A (en) * | 2017-03-30 | 2017-06-13 | 江门市赛为电力科技有限公司 | A kind of transformer resistance tester being switched fast |
-
2013
- 2013-07-23 CN CN 201320440129 patent/CN203365548U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104076208A (en) * | 2014-07-18 | 2014-10-01 | 国家电网公司 | Transformer direct current resistance testing method and testing clamp with adjustable opening |
| CN106841705A (en) * | 2017-03-30 | 2017-06-13 | 江门市赛为电力科技有限公司 | A kind of transformer resistance tester being switched fast |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131225 Termination date: 20140723 |
|
| EXPY | Termination of patent right or utility model |