CN203178470U - Secondary circuit testing device for mutual inductor - Google Patents
Secondary circuit testing device for mutual inductor Download PDFInfo
- Publication number
- CN203178470U CN203178470U CN 201320224951 CN201320224951U CN203178470U CN 203178470 U CN203178470 U CN 203178470U CN 201320224951 CN201320224951 CN 201320224951 CN 201320224951 U CN201320224951 U CN 201320224951U CN 203178470 U CN203178470 U CN 203178470U
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- CN
- China
- Prior art keywords
- transformer
- secondary circuit
- controller
- phase regulator
- tester
- 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 title abstract description 21
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 2
- 239000000725 suspension Substances 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims description 2
- 238000002955 isolation Methods 0.000 abstract 2
- 238000005070 sampling Methods 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- 238000007689 inspection Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
Landscapes
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The utility model discloses a secondary circuit testing device for a mutual inductor. The device comprises a testing device body, a voltage regulator and an isolation transformer are provided in the testing device body, and a controller is arranged on the outer wall of the testing device body. The controller is connected with the three-phase voltage regulator via a control signal wire, the three-phase regulator is connected with the isolation transformer, and current transformers are provided in the three-phase voltage regulator. The secondary circuit testing device for the mutual inductor does an overall test for the secondary circuit of the current transformers, the accuracy of the test can be guaranteed, the complexity of the original secondary circuit test of the current transformers is overcome, the operation is simple and easy to grasp, and the operation staff only needs to press the operation buttons on the controller.
Description
Technical field
The utility model relates to a kind of tester, relates in particular to a kind of transformer secondary circuit tester.
Background technology
According to state's net requirement, newly-built transformer station designs according to intelligent substation, adopt conventional mutual inductor to add and merge the unit mode, increased the merge cells device, variation has taken place in conventional secondary circuit, original cable connection changes the mode of connection of cable+optical cable into, and traditional secondary circuit method of testing has not too adapted to the test of intelligent substation secondary circuit.
In traditional transformer secondary circuit method of testing, often adopt dry cell polarity test and single-phase once through-flow test, often need many people to cooperate and to finish this part work, go wrong if cooperate, whole secondary circuit can occur and check that wrong phenomenon takes place, both wasted time and energy and taken a lot of work, can only measure the mutual inductor partial parameters, can't guarantee whole secondary circuit correctness.
The utility model content
The purpose of this utility model is exactly to provide a kind of transformer secondary circuit tester in order to address the above problem, and it has controlledization of bulk testing, avoids repeatedly the advantage of revision test.
To achieve these goals, the utility model adopts following technical scheme:
A kind of transformer secondary circuit tester, it comprises the tester body, pressure regulator and isolating transformer are installed in the tester body, on the described tester body outer wall controller is installed, controller is connected with three-phase regulator by signal control line, three-phase regulator is connected with isolating transformer, disposes current transformer in the three-phase regulator.
Startup be installed on the described controller, stop, boost, the step-down button, wherein startup, stop button are connected with A.C. contactor in the controller, boost, the step-down button is connected to three-phase regulator by control signal wire; Display also is installed on the controller, is used for the data of the three-phase regulator transmission of demonstration input current voltage, output circuit voltage and control signal wire collection.
The pressure regulation input end of the current transformer in the described three-phase regulator is connected with the voltage output end of controller, and the pressure regulation output terminal of current transformer is connected with the low pressure input end of isolating transformer.
Described isolating transformer employing capacity is the 150kVA three-phase three-winding transformer.
Described tester bodies top is installed four suspension ring for four jiaos, and four rolling is installed for four jiaos in the bottom.
The beneficial effects of the utility model: the utility model is done integrated testability to secondary loop of mutual inductor, can guarantee its correctness, and overcome the complicacy that original secondary loop of mutual inductor checks, and operate simple and easy easy grasp, operating personnel only need the action button on the operation control to get final product.
The utility model is at primary side simulation three-phase actual motion electric current, in secondary device side Monitoring Data, to the parameter configuration of current transformer polarity, guarantee the correctness of cable and optical cable wiring, can the CPU board sampled data of secondary intelligent apparatus be checked comprehensively.
Description of drawings
Fig. 1 is structured flowchart of the present utility model;
Fig. 2 is the happy wise energy transforming plant primary system wiring figure of 220kV.
Wherein, 1. controller, 2. display, 3. control signal wire, 4. power output end, 5. pressure regulation input end, 6. current transformer, 7. pressure regulation output terminal, 8. low pressure input end, 9. three-phase regulator, 10. isolating transformer, 11. power inputs, 12. tester bodies, 13. middle pressure output terminal, 14. high-voltage output ends.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and embodiment.
As Fig. 1, this transformer secondary circuit tester is combined by controller 1, three-phase regulator 9, isolating transformer 10, connects by the insulation copper bar between the three, takes the integral cabinet type mounting structure.
Have startup in the controller, stop, boosting, the step-down button, wherein start button, stop button are connected with A.C. contactor in the controller 1, boost button, step-down button are connected to three-phase regulator 9 by control signal wire 3, are finished by three-phase regulator 9 motors; Have display 2 in the controller 1, can show input current voltage, output current voltage, gather the sampled data of current transformer 6 transmission in the three-phase regulator 9 by control signal wire 3.
The three-phase regulator 9 main voltage regulation functions of realizing are adjusted output voltage, realize the function of control output current, three-phase regulator 9 internal configurations current-voltage transformers 6, and the transmission data are given controller 1.
The isolating transformer 10 main output functions that rise, security for warranty test, isolating transformer 10 integral installations are in tester body 12, high, middle pressure insulation column is installed on outside the tester body 12, the middle pressure output terminal 13 of isolating transformer 10 mainly carries out the electric current secondary loop verification, and high-voltage output end 14 carries out the verification of voltage secondary circuit.
Its middle controller 1, three-phase regulator 9, the big N of isolating transformer 10 primary sides, iron core, shell must reliably be connected with tester body 12, and tester body 12 is carried out tangible earth terminal.
Also be provided with power input 11 on the controller 1, the power output end 4 of controller is connected with the pressure regulation input end 5 of three-phase regulator 9, and the pressure regulation output terminal 7 of three-phase regulator 9 is connected with the low pressure input end 8 of isolating transformer 10.
As shown in Figure 2, be the example explanation with the happy bright transformer station of 220kV, the step that the utility model uses in this transformer station:
1, tester body 12 is carried out ground connection, draws 3 * 50 ㎜, 2 power leads from the maintenance power supply box, finishes it to the line of tester power input 11.
2, carry out the electric current secondary loop inspection, do short circuit experiment, by adjusting the state of primary equipment, detect its smart machine current sampling data correctness such as protection observing and controlling at interval, go between to main-transformer high-pressure side sleeve pipe at the middle pressure output terminal 13 of tester.
Close respectively 201-3,201-1,201 switches, 200-1,200-2,200 switches, 211-2,211-D2,211 regulate three-phase regulator 9 outputs, the size of control short-circuit current by control desk.When reaching, short-circuit current stops up-flow can detecting the direction of current value time.Because be the primary equipment three-phase shortcircuit; the three-phase shortcircuit electric current that produces has size, angle; in intelligent apparatus, check size, the angle of current sampling data; take main transformer, female connection, three monitorings at interval of circuit, observe bus protection difference stream, be spaced apart benchmark with main transformer and judge other property in the right direction at interval.
After testing 211,200,201 septal direction, disconnect 211 switches, the 213-2 that closes, 213-D2,213 measure 213 septal direction; After testing 213 directions, disconnect 213 switches, the 202-2 that closes, 202-D2,202 measure 202 septal direction.After having tested the 220kV zone, with test wire by 220kV side reconfiguration to 110kV main transformer sleeve pipe side, according to the 220kV test method, divide at interval and carry out, check 110kV, 35kV spacing current secondary circuit correctness.
3, carry out the inspection of voltage secondary circuit, do pressure build-up test, station equipment is operated to running status, primary equipment needs to disconnect with outer circuit connecting line in standing, and the high-voltage output end 14 of tester goes between to the main transformer low-pressure side.Regulate the output of test isolating transformer 10 by control desk, voltage sample in the finder when magnitude of voltage reaches can the detected magnitude angle time, stops to boost voltage AC sampling size, angle in the monitoring device.Pressure build-up test can be monitored full station voltage circuit, capacitor differential pressure loop, station and be become the road again.
Though above-mentionedly by reference to the accompanying drawings embodiment of the present utility model is described; but be not the restriction to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various modifications that creative work can make or distortion still in protection domain of the present utility model.
Claims (5)
1. transformer secondary circuit tester, it is characterized in that, it comprises the tester body, pressure regulator and isolating transformer are installed in the tester body, on the described tester body outer wall controller is installed, controller is connected with three-phase regulator by signal control line, and three-phase regulator is connected with isolating transformer, disposes current transformer on the three-phase regulator.
2. a kind of transformer secondary circuit tester according to claim 1, it is characterized in that, startup be installed on the described controller, stop, boost, the step-down button, wherein startup, stop button are connected with A.C. contactor in the controller, boost, the step-down button is connected to three-phase regulator by control signal wire; Display also is installed on the controller, is used for the data of the three-phase regulator transmission of demonstration input current voltage, output circuit voltage and control signal wire collection.
3. a kind of transformer secondary circuit tester according to claim 1, it is characterized in that, the pressure regulation input end of the current transformer in the described three-phase regulator is connected with the voltage output end of controller, and the pressure regulation output terminal of current transformer is connected with the low pressure input end of isolating transformer.
4. a kind of transformer secondary circuit tester according to claim 1 is characterized in that described isolating transformer employing capacity is the 150kVA three-phase three-winding transformer.
5. a kind of transformer secondary circuit tester according to claim 1 is characterized in that, described tester bodies top is installed four suspension ring for four jiaos, and four rolling is installed for four jiaos in the bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320224951 CN203178470U (en) | 2013-04-27 | 2013-04-27 | Secondary circuit testing device for mutual inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320224951 CN203178470U (en) | 2013-04-27 | 2013-04-27 | Secondary circuit testing device for mutual inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203178470U true CN203178470U (en) | 2013-09-04 |
Family
ID=49075148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320224951 Expired - Fee Related CN203178470U (en) | 2013-04-27 | 2013-04-27 | Secondary circuit testing device for mutual inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203178470U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104181491A (en) * | 2014-09-02 | 2014-12-03 | 国家电网公司 | Device for detecting alternating current transformer and secondary circuit |
| CN107015183A (en) * | 2016-12-30 | 2017-08-04 | 国网山东省电力公司莱芜供电公司 | Portable small current earthing wire-selecting tester and method of testing |
| CN107991606A (en) * | 2017-12-29 | 2018-05-04 | 北京合锐清合电气有限公司 | Medium voltage switchgear equipment energizing test equipment |
| CN110488137A (en) * | 2019-09-03 | 2019-11-22 | 广东电网有限责任公司 | A kind of apparatus and method detecting CT secondary circuit integrality |
-
2013
- 2013-04-27 CN CN 201320224951 patent/CN203178470U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104181491A (en) * | 2014-09-02 | 2014-12-03 | 国家电网公司 | Device for detecting alternating current transformer and secondary circuit |
| CN107015183A (en) * | 2016-12-30 | 2017-08-04 | 国网山东省电力公司莱芜供电公司 | Portable small current earthing wire-selecting tester and method of testing |
| CN107015183B (en) * | 2016-12-30 | 2019-09-17 | 国网山东省电力公司莱芜供电公司 | Portable small current earthing wire-selecting tester and test method |
| CN107991606A (en) * | 2017-12-29 | 2018-05-04 | 北京合锐清合电气有限公司 | Medium voltage switchgear equipment energizing test equipment |
| CN110488137A (en) * | 2019-09-03 | 2019-11-22 | 广东电网有限责任公司 | A kind of apparatus and method detecting CT secondary circuit integrality |
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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: 20130904 Termination date: 20170427 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |