CN105004963A - Current and potential transformer polarity test device - Google Patents
Current and potential transformer polarity test device Download PDFInfo
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- CN105004963A CN105004963A CN201510445615.XA CN201510445615A CN105004963A CN 105004963 A CN105004963 A CN 105004963A CN 201510445615 A CN201510445615 A CN 201510445615A CN 105004963 A CN105004963 A CN 105004963A
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Abstract
The invention provides a current and potential transformer polarity test device, belongs to the technical field of transformer polarity test, and solves the technical problems that the invention provides the current and potential transformer polarity test device which is high in test accuracy and high in anti-interference capability and can perform measurement under the condition of a dark test site. The adopted technical scheme is that the current and potential transformer polarity test device comprises a power supply U1, a switch K1, a light-emitting diode D1, a light-emitting diode D2 and a current direction induction module with a display screen. The positive electrode of the power supply U1 is connected in series with the switch K1 and then connected with the primary side connection terminal A1 of a current and potential transformer T1. The negative electrode of the power supply U1 is connected with the primary side connection terminal A2 of the current direction induction module with the display screen. The current and potential transformer polarity test device is suitable for the technical field of electric power systems.
Description
Technical field
Current-voltage transformer polarity test device of the present invention, belongs to the technical field of mutual inductor polarity test.
Background technology
Voltage transformer (VT) (PT) summation current transformer (CT) is the important electrical equipment of electric system; it carries the function that isolation between high and low pressure system and high pressure amount are changed to low pressure amount; in transformer station's installation, examination and technological transformation work; the checking work of mutual inductor polarity is the requisite link of relay protection staff; polarity wrong can cause measurement, measuring apparatus correctly cannot read data; also can cause relay fail or malfunction; therefore, mutual inductor polarity test has important meaning to electric system.
Conventional test mutual inductor polarity method has two kinds, the first uses mutual inductor comprehensive tester, the major function of this instrument utilizes CT no-load voltage ratio to test and exports big current, the large coil of instrument internal causes instrument overall volume large, quality weight, also have wiring complicated in addition, complex operation, poor anti jamming capability, the feature such as easily to make mistakes, even in the face of some special working environments cannot normally use, if simple test mutual inductor polarity, these problems have influence on the work efficiency of relay protection staff to a certain extent, incur loss through delay the electric power feeding time of transformer station, second method utilizes mutual inductor primary current to flow into from polar end, the feature that secondary current flows out from polar end, pointer multimeter is red, black meter pen line seals in the secondary circuit of mutual inductor, multimeter is beaten at shelves of direct voltage, then the negative pole of a joint dry cell is connected on a non-polar end binding post of mutual inductor, use a polar end binding post of positive pole " point " mutual inductor of dry cell again, the now forward current once flowed into from polar end to non-polar end of mutual inductor, observe the pointer offset direction of pointer multimeter, if pointer is from 0 to right avertence, what then the red test pencil of multimeter connect is mutual inductor secondary polarity end, what black meter pen connect is mutual inductor secondary non-polar end, this wiring is just called " positive polarity ", if pointer is from 0 to left avertence, what then the red test pencil of multimeter connect is mutual inductor secondary non-polar end, what black meter pen connect is mutual inductor secondary polarity end, this wiring is just called " negative polarity ", this method requires that 2-3 people coordinates simultaneously, higher to the cooperate degree of tester, exist time-consuming when testing mutual inductor polarity in prior art, effort, poor anti jamming capability, not easy to operate, and the problem such as cannot to use under test site light dark condition.
Summary of the invention
The present invention overcomes the deficiency that prior art exists, and technical matters to be solved is: provide that a kind of testing precision is high, antijamming capability is strong, and can carry out the current-voltage transformer polarity test device measured under test site light dark condition.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: current-voltage transformer polarity test device, comprise: power supply U1, K switch 1, light emitting diode D1, light emitting diode D2 and the direction of current induction module with display screen, be connected with the primary side connection terminal A1 of current-voltage transformer T1 after the positive pole serial connection K switch 1 of described power supply U1, the negative pole of described power supply U1 is connected with the primary side connection terminal A2 of current-voltage transformer T1, described light emitting diode D1, light emitting diode D2 and direction of current induction module are attempted by between the secondary side connection terminal B1 of current-voltage transformer T1 and secondary side connection terminal B2 respectively, the negative pole of described light emitting diode D1 is all connected with secondary side connection terminal B1 with the positive pole of light emitting diode D2.
Described device also comprises indicator type current meter S1, described indicator type current meter S1 is attempted by between the secondary side connection terminal B1 of current-voltage transformer T1 and secondary side connection terminal B2, described K switch 1 is radio remote control switch, radio remote control switch carries out wireless connections with the remote control transmitter for launching code frequency, described K switch 1 is hand switch, described light emitting diode D1 is red light emitting diodes, described light emitting diode D2 is green LED, and described display screen is LCDs.
The present invention compared with prior art has following beneficial effect:
Current-voltage transformer polarity test device of the present invention, in test process, light emitting diode D1, light emitting diode D2 utilize diode forward conducting principle, light emitting diode D1 conducting when test result is positive polarity, red light lights, light emitting diode D2 conducting when test result is negative polarity, green light lights; Direction of current induction module is when testing, the test result sensed can show on a liquid crystal display, liquid crystal display can be lighted when normal work, in addition, the present invention also comprises indicator type current meter S1, by rotating and reverse of indicator type current meter S1, represent that the test result sensed is positive polarity and negative polarity; Three kinds of test modes are measured simultaneously, ensure test accuracy, and also can use under light dark condition at the scene, greatly facilitate staff, whole device wiring is succinct, simple to operate, antijamming capability is strong, improve the work efficiency of staff, save the electric power feeding time of transformer station.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention will be further described in detail;
Fig. 1 is structural representation of the present invention;
In figure: 1 is direction of current induction module, and 2 is remote control transmitter.
Embodiment
As shown in Figure 1, current-voltage transformer polarity test device, comprise: power supply U1, K switch 1, light emitting diode D1, light emitting diode D2 and the direction of current induction module 1 with display screen, be connected with the primary side connection terminal A1 of current-voltage transformer T1 after the positive pole serial connection K switch 1 of described power supply U1, the negative pole of described power supply U1 is connected with the primary side connection terminal A2 of current-voltage transformer T1, described light emitting diode D1, light emitting diode D2 and direction of current induction module 1 are attempted by between the secondary side connection terminal B1 of current-voltage transformer T1 and secondary side connection terminal B2 respectively, direction of current induction module 1 is when testing, the test result sensed can show on a liquid crystal display, display screen can be lighted when normal work, also can use under light dark condition at the scene, the negative pole of described light emitting diode D1 is all connected with secondary side connection terminal B1 with the positive pole of light emitting diode D2.
Described device also comprises indicator type current meter S1, described indicator type current meter S1 is attempted by between the secondary side connection terminal B1 of current-voltage transformer T1 and secondary side connection terminal B2, the test result sensed respectively that rotates and reverse of pointer reometer S1 is positive polarity and negative polarity, described K switch 1 is radio remote control switch, radio remote control switch carries out wireless connections with the remote control transmitter 2 for launching code frequency, described K switch 1 is hand switch, described light emitting diode D1 is red light emitting diodes, described light emitting diode D2 is green LED, in test process, light emitting diode D1, light emitting diode D2 utilizes diode forward conducting principle, light emitting diode D1 conducting when test result is positive polarity, red light lights, light emitting diode D2 conducting when test result is negative polarity, green light lights, described display screen is LCDs.
Current-voltage transformer polarity test device of the present invention, provide that a kind of testing precision is high, antijamming capability is strong, and the current-voltage transformer polarity test device can measured at test site light dark condition, there is outstanding substantive distinguishing features and significant progress; By reference to the accompanying drawings embodiments of the invention are explained in detail above, but the present invention is not limited to above-described embodiment, in the ken that those of ordinary skill in the art possess, also can makes various change under the prerequisite not departing from present inventive concept.
Claims (7)
1. current-voltage transformer polarity test device, it is characterized in that: comprising: power supply U1, K switch 1, light emitting diode D1, light emitting diode D2 and the direction of current induction module (1) with display screen, be connected with the primary side connection terminal A1 of current-voltage transformer T1 after the positive pole serial connection K switch 1 of described power supply U1, the negative pole of described power supply U1 is connected with the primary side connection terminal A2 of current-voltage transformer T1, described light emitting diode D1, light emitting diode D2 and direction of current induction module (1) are attempted by between the secondary side connection terminal B1 of current-voltage transformer T1 and secondary side connection terminal B2 respectively, the negative pole of described light emitting diode D1 is all connected with secondary side connection terminal B1 with the positive pole of light emitting diode D2.
2. current-voltage transformer polarity test device according to claim 1, it is characterized in that: described device also comprises indicator type current meter S1, described indicator type current meter S1 is attempted by between the secondary side connection terminal B1 of current-voltage transformer T1 and secondary side connection terminal B2.
3. current-voltage transformer polarity test device according to claim 1, is characterized in that: described K switch 1 is radio remote control switch, and radio remote control switch carries out wireless connections with the remote control transmitter (2) for launching code frequency.
4. current-voltage transformer polarity test device according to claim 1, is characterized in that: described K switch 1 is hand switch.
5. current-voltage transformer polarity test device according to claim 1, is characterized in that: described light emitting diode D1 is red light emitting diodes.
6. current-voltage transformer polarity test device according to claim 1, is characterized in that: described light emitting diode D2 is green LED.
7. current-voltage transformer polarity test device according to claim 1, is characterized in that: described display screen is LCDs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510445615.XA CN105004963A (en) | 2015-07-27 | 2015-07-27 | Current and potential transformer polarity test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510445615.XA CN105004963A (en) | 2015-07-27 | 2015-07-27 | Current and potential transformer polarity test device |
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| Publication Number | Publication Date |
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| CN105004963A true CN105004963A (en) | 2015-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510445615.XA Pending CN105004963A (en) | 2015-07-27 | 2015-07-27 | Current and potential transformer polarity test device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105891664A (en) * | 2016-06-14 | 2016-08-24 | 李彦吉 | Multi-path analog loop and polarity calibration instrument |
| CN107271776A (en) * | 2017-07-05 | 2017-10-20 | 王雨露 | A kind of zero load transformer station's phasor measurement test method |
| CN109298280A (en) * | 2018-10-29 | 2019-02-01 | 国网新疆电力有限公司昌吉供电公司 | Current transformer device for detecting polarity with self-test circuit |
| CN110888094A (en) * | 2019-11-23 | 2020-03-17 | 国网河南省电力公司检修公司 | Polarity tester for current transformer |
| CN112763965A (en) * | 2020-12-11 | 2021-05-07 | 深圳供电局有限公司 | Comprehensive test device of current transformer |
| CN112946555A (en) * | 2021-03-15 | 2021-06-11 | 国网新疆电力有限公司巴州供电公司 | Current transformer polarity test system based on dual display |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4740745A (en) * | 1986-07-14 | 1988-04-26 | Sainz Michael A | Polarity and continuity tester for primary and secondary automotive circuits |
| CN2397550Y (en) * | 1999-11-10 | 2000-09-20 | 李应起 | Right-hand rule demonstration device |
| CN101957420A (en) * | 2010-09-19 | 2011-01-26 | 江苏省电力公司仪征市供电公司 | Device for testing polarities of mutual inductor of switchgear |
| CN202141775U (en) * | 2011-06-07 | 2012-02-08 | 天津二十冶建设有限公司 | Instrument for testing polarity of current transformer |
| CN203337767U (en) * | 2013-07-29 | 2013-12-11 | 国家电网公司 | CT polarity detector |
| CN203535163U (en) * | 2013-07-29 | 2014-04-09 | 广东电网公司东莞供电局 | Current transformer polarity tester |
| CN204789863U (en) * | 2015-07-27 | 2015-11-18 | 国网山西省电力公司晋城供电公司 | Combined current and potential transformer polarity test device |
-
2015
- 2015-07-27 CN CN201510445615.XA patent/CN105004963A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4740745A (en) * | 1986-07-14 | 1988-04-26 | Sainz Michael A | Polarity and continuity tester for primary and secondary automotive circuits |
| CN2397550Y (en) * | 1999-11-10 | 2000-09-20 | 李应起 | Right-hand rule demonstration device |
| CN101957420A (en) * | 2010-09-19 | 2011-01-26 | 江苏省电力公司仪征市供电公司 | Device for testing polarities of mutual inductor of switchgear |
| CN202141775U (en) * | 2011-06-07 | 2012-02-08 | 天津二十冶建设有限公司 | Instrument for testing polarity of current transformer |
| CN203337767U (en) * | 2013-07-29 | 2013-12-11 | 国家电网公司 | CT polarity detector |
| CN203535163U (en) * | 2013-07-29 | 2014-04-09 | 广东电网公司东莞供电局 | Current transformer polarity tester |
| CN204789863U (en) * | 2015-07-27 | 2015-11-18 | 国网山西省电力公司晋城供电公司 | Combined current and potential transformer polarity test device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105891664A (en) * | 2016-06-14 | 2016-08-24 | 李彦吉 | Multi-path analog loop and polarity calibration instrument |
| CN105891664B (en) * | 2016-06-14 | 2018-09-11 | 李彦吉 | Multi-analog loop polarity tester |
| CN107271776A (en) * | 2017-07-05 | 2017-10-20 | 王雨露 | A kind of zero load transformer station's phasor measurement test method |
| CN109298280A (en) * | 2018-10-29 | 2019-02-01 | 国网新疆电力有限公司昌吉供电公司 | Current transformer device for detecting polarity with self-test circuit |
| CN110888094A (en) * | 2019-11-23 | 2020-03-17 | 国网河南省电力公司检修公司 | Polarity tester for current transformer |
| CN112763965A (en) * | 2020-12-11 | 2021-05-07 | 深圳供电局有限公司 | Comprehensive test device of current transformer |
| CN112946555A (en) * | 2021-03-15 | 2021-06-11 | 国网新疆电力有限公司巴州供电公司 | Current transformer polarity test system based on dual display |
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Application publication date: 20151028 |
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