CN201327522Y - Polarity tester of electromagnetic type current transformer - Google Patents
Polarity tester of electromagnetic type current transformer Download PDFInfo
- Publication number
- CN201327522Y CN201327522Y CNU2008202308892U CN200820230889U CN201327522Y CN 201327522 Y CN201327522 Y CN 201327522Y CN U2008202308892 U CNU2008202308892 U CN U2008202308892U CN 200820230889 U CN200820230889 U CN 200820230889U CN 201327522 Y CN201327522 Y CN 201327522Y
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- current transformer
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- guidance panel
- primary side
- operation panel
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Abstract
The utility model discloses a polarity tester of an electromagnetic type current transformer, which is in a box structure. An operation panel is arranged in the box body, and a power supply is fixedly installed in the box body under the operation panel. The meter head of an ampere meter is installed on the operation panel, two positive/negative terminal posts at the primary side of the current transformer are arranged at one side of the operation panel, two positive/negative terminal posts at the secondary side of the current transformer are arranged at the other side of the operation panel, a test button is arranged on the operation panel, the positive/negative terminal posts at the primary side of the current transformer are respectively connected with the anode and the cathode of the power supply, and the test button is connected between the anode of the power supply and the positive terminal post at the primary side of the current transformer. The ampere meter is connected between the positive terminal post and the negative terminal post at the secondary side of the current transformer. The polarity tester has the characteristics of simple structure, small volume and light weight, convenient and rapid polarity testing, rapid and convenient battery replacing, convenient installation and utilization, good safety and high reliability.
Description
Technical field
The utility model relates to a kind of power test instrument, is mainly used in the test to electromagnetic current transducer polarity.
Background technology
At present, in electric system, along with the continuous expansion of electrical network and perfect, electrical secondary system is more and more outstanding for the vital role of power network safety operation." Safety first, precaution crucial " then is the most important thing.Current transformer is the equipment as the low-voltage current that high voltage and current is changed into the use of instrument and protective device.First and second side of current transformer all has two leading-out terminals; the leading-out terminal of any side is with wrong; the capital makes 180 ° of the phase change of secondary current; so; it is used in the relay protection circuit; the misoperation of protective device will be caused,, the correctness of measurement instrument indication and the accuracy of metering can be influenced if be used in the metering instrument loop.Polarity test work looms large important more.
But the equipment of testing electromagnetic current transducer polarity at present is divided into two kinds of microcomputer type and traditional types substantially.So-called microcomputer type is meant the device that no-load voltage ratio measurement, polarity measurement and the voltammetric characteristic measuring with electromagnetic current transducer is integrated.Because current lifting device pressure regulator and a p-wire are contained in device inside, make that the volume and weight of device is bigger, its weight is generally between the 20-50 kilogram.Very inconvenience when carrying out the polarity measurement of electromagnetic current transducer separately.Components and parts when so-called traditional type is meant on-the-spot polarity measurement with electromagnetic current transducer couple together, and it mainly comprises dc-battery, and range is that 0～100mA, weight are 2 kilograms pointer direct current milliammeter, 4 test leads, 2 crocodile clips.3 of this need of work staff: the hand-held dc-battery of 1 personnel, and take 2 test lead one ends of coming from the electromagnetic current transducer primary side, the both positive and negative polarity of clicking dc-battery and another one are responsible for the personnel of watching the instruments and are sung mutually and cooperate; 1 personnel is responsible for electromagnetic current transducer primary side folder test lead; 1 tester is in the wiring of electromagnetic current transducer secondary side, and hand is taken the dynamic correctness of monitored meter instrument.
Therefore there are several problems in the scene at present: the one, and microcomputer type equipment is heavy, needs between twenty and fifty people's lift to move testing tool during test; The 2nd, the traditional type testing apparatus is scattered, and the staff is leaked easily and taken the testing apparatus part during on-the-spot test; The 3rd, owing to use the testing apparatus of traditional type scattered, measure polarity chron at the scene, when particularly cross-operation occurring, testing crew thread-changing and singing has mutually back and forth increased difficulty to work in the middle of invisible, has reduced work efficiency.Because the existence of above-mentioned several reasons brings very big trouble for work about electric power person.
Summary of the invention
The purpose of this utility model provides a kind of device that is used for the electromagnetic current transducer polarity test separately, and it can carry out the electromagnetic current transducer polarity test easily, to overcome the deficiencies in the prior art.
The technical solution adopted in the utility model is: it is a case structure, and guidance panel is located in the casing, and power supply is fixedly mounted in the casing below the guidance panel, and the gauge outfit of reometer is installed on the guidance panel; Two positive and negative terminals of current transformer primary side are located at guidance panel one side, and two positive and negative terminals of Current Transformer Secondary side are located at the guidance panel opposite side; Testing button also is located on the guidance panel; Two positive and negative terminals of current transformer primary side connect power positive cathode respectively, and test button is connected between positive source and the current transformer primary side positive terminal; Reometer is connected between two positive and negative terminals of Current Transformer Secondary side; Other has four test leads, is used to connect electromagnetic current transducer and testing tool.
For making guidance panel install firm and being convenient for changing battery, below guidance panel, be provided with the inserted sheet of two vertical directions, the correspondence position in the casing is provided with the jacks of two band flexure strips, is provided with two panels and carries and unload handle on guidance panel.
Good effect of the present utility model is: simple in structure, volume is little, in light weight, and only 2 kilograms of whole gross weight amounts are carried, easy to detect; The staff can be reduced to 2,1 responsible electromagnetic current transducer primary side folder test lead, and the wiring of 1 responsible electromagnetic current transducer secondary side, and click testing button, realize that polarity test is convenient and swift; The replacing battery is quick and convenient, has easy to install, safe and reliable characteristics.
Description of drawings
Accompanying drawing 1 is the utility model wiring electrical schematic diagram; Accompanying drawing 2 is that the utility model guidance panel is arranged synoptic diagram
Embodiment
The utility model is a case structure, the peripheral hardware handle, guidance panel 15 is located in the casing, being provided with two panels on guidance panel 15 carries and unloads handle 16, be provided with the inserted sheet of two vertical directions below the guidance panel 15, correspondence position in the casing is provided with the jack of two band flexure strips, slightly firmly upwards carrying two panels carries and unloads handle 16, just can remove guidance panel 15, after changing battery, the jack of the band flexure strip that two inserted sheets alignings below the guidance panel 15 are following is slightly firmly pressed downwards, promptly guidance panel 15 is installed firmly.The first kind dc-battery that power supply 2 employing capacity are bigger is fixedly mounted in the casing below the guidance panel 15, on the battery plus-negative plate binding post by the screw link, thereby it is quick and convenient to realize changing battery.
The gauge outfit of reometer 9 is installed on the guidance panel 15; Two positive and negative terminals 4,14 of current transformer primary side 1 are located at guidance panel 15 left sides, and two positive and negative terminals 8,11 of Current Transformer Secondary side 10 are located at guidance panel 15 right sides; Testing button 3 also is located on the guidance panel 15; Two positive and negative terminals 4,14 of current transformer primary side 1 connect the both positive and negative polarity of power supply 2 respectively, and testing button 3 is connected between the positive terminal 4 of power supply 2 positive poles and current transformer primary side 1; Reometer 9 is connected between two positive and negative terminals 8,11 of Current Transformer Secondary side 10; Four test leads 5,7,12,13 connect tested installation electromagnetical formula current transformer 6 and instrument of the present utility model when being used to test.
Test using method of the present utility model is:
At first, check the size of battery capacity, test lead 5 one ends insert the positive terminal 4 of current transformer primary side 1, another termination electromagnetic current transducer 6 end of incoming cables binding posts, test lead 13 1 ends insert the negative terminal 4 of current transformer primary side 1, another termination electromagnetic current transducer 6 leading-out terminal binding posts; Test lead 7 one ends insert the positive terminal 8 of Current Transformer Secondary side 9, the polar end of another termination electromagnetic current transducer 6 Secondary Winding, the negative terminal 11 of test lead 12 1 termination Current Transformer Secondary sides 9, the non-polar end of another termination electromagnetic current transducer 6 Secondary Winding.After each test lead wiring finishes, press testing button 3, when polarity was subtractive polarity, pointer was to right deflection, when polarity is inverse time, and pointer direction deflection left.
Claims (2)
1, a kind of electromagnetic current transducer polarity tester, it is characterized in that: it is a case structure, guidance panel (15) is located in the casing, and power supply (2) is fixedly mounted in the following casing of guidance panel (15), and the gauge outfit of reometer (9) is installed on the guidance panel (15); Two positive and negative terminals (4,14) of current transformer primary side (1) are located at guidance panel (15) one sides, and two positive and negative terminals (8,11) of Current Transformer Secondary side (10) are located at guidance panel (15) opposite side; Testing button (3) also is located on the guidance panel (15); Two positive and negative terminals (4,14) of current transformer primary side (1) connect power supply (2) both positive and negative polarity respectively, and test button (3) is connected between the positive terminal (4) of power supply (2) positive pole and current transformer primary side (1); Reometer (9) is connected between two positive and negative terminals (8,11) of Current Transformer Secondary side (9); Four test leads (5,7,12,13) are used to connect electromagnetic current transducer (6) and testing tool.
2, electromagnetic current transducer polarity tester according to claim 1 is characterized in that: be provided with the inserted sheet of two vertical directions below the guidance panel (15), the correspondence position in the casing is provided with the jack of two band flexure strips; Being provided with two panels on guidance panel (15) carries and unloads handle (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202308892U CN201327522Y (en) | 2008-12-17 | 2008-12-17 | Polarity tester of electromagnetic type current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202308892U CN201327522Y (en) | 2008-12-17 | 2008-12-17 | Polarity tester of electromagnetic type current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201327522Y true CN201327522Y (en) | 2009-10-14 |
Family
ID=41179491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202308892U Expired - Fee Related CN201327522Y (en) | 2008-12-17 | 2008-12-17 | Polarity tester of electromagnetic type current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201327522Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104133154A (en) * | 2013-05-03 | 2014-11-05 | 武汉凯默电气有限公司 | Intelligent substation current transformer polarity test method and device |
| CN105182173A (en) * | 2015-08-07 | 2015-12-23 | 国网山东省电力公司淄博供电公司 | Novel combined-type mutual inductor polarity tester |
| CN105246014A (en) * | 2015-09-30 | 2016-01-13 | 梧州恒声电子科技有限公司 | Improved multimedia sound box listening-based sound quality detection fixture |
| CN114200377A (en) * | 2021-11-23 | 2022-03-18 | 广州亿沃新能源科技有限公司 | Wireless polarity testing device for mutual inductor |
-
2008
- 2008-12-17 CN CNU2008202308892U patent/CN201327522Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104133154A (en) * | 2013-05-03 | 2014-11-05 | 武汉凯默电气有限公司 | Intelligent substation current transformer polarity test method and device |
| CN104133154B (en) * | 2013-05-03 | 2016-12-28 | 武汉凯默电气有限公司 | A kind of intelligent substation current transformer polarity testing method and device |
| CN105182173A (en) * | 2015-08-07 | 2015-12-23 | 国网山东省电力公司淄博供电公司 | Novel combined-type mutual inductor polarity tester |
| CN105246014A (en) * | 2015-09-30 | 2016-01-13 | 梧州恒声电子科技有限公司 | Improved multimedia sound box listening-based sound quality detection fixture |
| CN114200377A (en) * | 2021-11-23 | 2022-03-18 | 广州亿沃新能源科技有限公司 | Wireless polarity testing device for mutual inductor |
| CN114200377B (en) * | 2021-11-23 | 2024-01-19 | 天航长鹰(江苏)科技有限公司 | Wireless polarity testing device for mutual inductor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091014 Termination date: 20101217 |