CN104166071A - Portable electric transformer polarity determining device - Google Patents
Portable electric transformer polarity determining device Download PDFInfo
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- CN104166071A CN104166071A CN201410385605.7A CN201410385605A CN104166071A CN 104166071 A CN104166071 A CN 104166071A CN 201410385605 A CN201410385605 A CN 201410385605A CN 104166071 A CN104166071 A CN 104166071A
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- binding post
- battery
- determining device
- direct current
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Abstract
The invention discloses a portable electric transformer polarity determining device which comprises a first set of binding posts P1 and P2, a second set of binding posts S1 and S2, a power switch K, a battery Ev and a direct-current milliampere ammeter M. The determining device has the advantages that by the adoption of the portable electric transformer polarity determining device, before equipment is installed, whether the problem of wiring errors exists in the equipment can be determined, and the determining accuracy rate is 100%. The device is easy to manufacture, low in manufacturing cost, fast to operate, accurate in testing and convenient to carry; duplication of labor is reduced, the work efficiency is improved, and active demands of the technical fields are met.
Description
Technical field
The present invention relates to power equipment professional skill field; Particularly relate to a kind of portable power mutual inductor polarity decision maker.
Background technology
In power industry, 10KV high pressure measurement combination unit is mainly used in anti-electricity-theft at present, and from equipment manufacturer's direct-assembling, then the scene of delivering to is arranged on 10KV circuit.Equipment installs and carries out after transmission operation, finds that the metering electric weight of other 10KV high pressure measurement combination unit is inaccurate.Can only again apply for that 10KV line outage plan changes this equipment, return after device fabrication producer, check that the inside of finding outdoor 10KV metering combination unit exists wiring error problem.For applying unit, cause inconvenience, heavy industry, had both affected the installation of equipment, had normally used repeatedly, had affected again work efficiency.The sex determination device of a kind of mutual inductor utmost point of active demand of this area.
Summary of the invention
Technical matters to be solved by this invention is that a kind of portable power mutual inductor polarity decision maker is provided.
The technical solution adopted in the present invention is, a kind of portable power mutual inductor polarity decision maker, comprises, first group of binding post P1 and P2, second group of binding post S1 and S2, power switch K, battery Ev and a direct current milliampere reometer M; P1 in described first group of binding post is electrically connected to the positive pole of battery Ev, and the negative pole of battery Ev is by being connected in series afterwards and being electrically connected to the P2 in first group of binding post with power switch K; S1 in described second group of binding post is electrically connected to the positive pole of direct current milliampere reometer M, and the negative pole of direct current milliampere reometer M is electrically connected to the S2 in second group of binding post.
The range of described direct current milliampere reometer M is 5mA, and battery Ev is No. 1 battery of two joints, and voltage is 3V, and power switch K is microswitch.
The invention has the beneficial effects as follows, adopt this portable power mutual inductor polarity decision maker, whether the inside that gets final product determining apparatus before equipment is installed there is wiring error problem, determination rate of accuracy reaches 100%, and this device is manufactured simple, cheap, swift to operate, test accurate, easy to carry, both reduce the duplication of labour, improved again work efficiency, met the active demand of the art.
Accompanying drawing explanation
Fig. 1 is portable power mutual inductor polarity decision maker electrical block diagram of the present invention;
Fig. 2 is that the present invention judges the circuit diagram whether voltage of power mutual inductor interstar connection is correct;
Fig. 3 is that the present invention judges the circuit diagram whether power current transformer wiring is correct.
In figure:
P1, P2, first group of binding post S1, S2, second group of binding post
K, power switch Ev, battery
M, direct current millivolt ammeter DUT, determinand.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
As shown in Figure 1, portable power mutual inductor polarity decision maker of the present invention, comprises, first group of binding post P1 and P2, second group of binding post S1 and S2, power switch K, battery Ev and a direct current milliampere reometer M; P1 in first group of binding post is electrically connected to the positive pole of battery Ev, and the negative pole of battery Ev is by being connected in series afterwards and being electrically connected to the P2 in first group of binding post with power switch K; S1 in second group of binding post is electrically connected to the positive pole of direct current milliampere reometer M, and the negative pole of direct current milliampere reometer M is electrically connected to the P2 in second group of binding post.
The range of direct current millivolt ammeter M is 5mA, and battery Ev is No. 1 battery of two joints, and voltage is 3V, and power switch K is microswitch.
As shown in Figure 2 to Figure 3, in use, first group of binding post P1 is connected with the former limit input end of determinand DUT with P2 the portable mutual inductor polarity decision maker of the present invention, and second group of binding post S1 is connected with the secondary output terminal of determinand DUT with S2.When the moment of pressing power switch K and switching on power, if the pointer of direct current milliampere reometer M is towards positive dirction deflection, the S1 in second group of binding post represents that the polarity of the determinand DUT of this contact end is negative polarity, otherwise the S1 in second group of binding post represents that the polarity of the end determinand DUT of this contact end is positive polarity; Judge the polarity chron of determinand DUT, should at least test twice, twice test result consistent, can determine the polarity of this determinand DUT.Determinand DUT can be both voltage of power mutual inductor, can be also power current transformer.
10KV metering combination unit uses this device to test in advance before installing, thereby the false wiring situation of avoiding 10KV high pressure measurement combination unit to occur after manufacturer's assembling guarantees that this equipment can normally measure operation after power transmission is installed.
The present invention adopts portable power mutual inductor polarity decision maker, whether the inside that gets final product determining apparatus before equipment is installed there is wiring error problem, determination rate of accuracy reaches 100%, this device is manufactured simple, cheap, swift to operate, test accurate, easy to carryly, both reduced the duplication of labour, improve again work efficiency, met the active demand of the art.
It is worthy of note; protection scope of the present invention is not limited to above-mentioned instantiation mode; according to basic fundamental design of the present invention; also available essentially identical structure; can realize object of the present invention; as long as those of ordinary skills are without process creative work, the embodiment that can associate, all belongs to protection scope of the present invention.
Claims (2)
1. a portable power mutual inductor polarity decision maker, is characterized in that, comprises first group of binding post P1 and P2, second group of binding post S1 and S2, power switch K, battery Ev and a direct current milliampere reometer M;
P1 in described first group of binding post is electrically connected to the positive pole of battery Ev, and the negative pole of battery Ev is by being connected in series afterwards and being electrically connected to the P2 in first group of binding post with power switch K; S1 in described second group of binding post is electrically connected to the positive pole of direct current milliampere reometer M, and the negative pole of direct current milliampere reometer M is electrically connected to the S2 in second group of binding post.
2. portable power mutual inductor polarity decision maker according to claim 1, is characterized in that, the range of described direct current milliampere reometer M is 5mA, and battery Ev is No. 1 battery of two joints, and voltage is 3V, and power switch K is microswitch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410385605.7A CN104166071A (en) | 2014-08-07 | 2014-08-07 | Portable electric transformer polarity determining device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410385605.7A CN104166071A (en) | 2014-08-07 | 2014-08-07 | Portable electric transformer polarity determining device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104166071A true CN104166071A (en) | 2014-11-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410385605.7A Pending CN104166071A (en) | 2014-08-07 | 2014-08-07 | Portable electric transformer polarity determining device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104166071A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107677915A (en) * | 2017-08-11 | 2018-02-09 | 国网山东省电力公司沂源县供电公司 | Use mutual inductor polarity measurement apparatus and its measuring method in Portable metering scene |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5624588A (en) * | 1979-08-03 | 1981-03-09 | Toshiba Corp | Polarity detector for current transformer |
| JPS62229078A (en) * | 1986-03-31 | 1987-10-07 | Nippon Denki Keiki Kenteishiyo | Polarity tester of transformer |
| CN101692115A (en) * | 2009-09-23 | 2010-04-07 | 河南省电力公司商丘供电公司 | Polarity tester for current transformer at transformer neutral point |
| CN201804071U (en) * | 2010-08-20 | 2011-04-20 | 嵩县电业局 | Polarity tester for current transformer |
| CN202815146U (en) * | 2012-10-19 | 2013-03-20 | 重庆创正互感器有限公司 | Polarity detector for mutual inductor |
| CN202975236U (en) * | 2012-12-25 | 2013-06-05 | 特变电工康嘉(沈阳)互感器有限责任公司 | Direct current method transformer polarity detector |
| CN202994954U (en) * | 2012-12-24 | 2013-06-12 | 宁夏电力公司中卫供电局 | Portable polarity tester |
-
2014
- 2014-08-07 CN CN201410385605.7A patent/CN104166071A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5624588A (en) * | 1979-08-03 | 1981-03-09 | Toshiba Corp | Polarity detector for current transformer |
| JPS62229078A (en) * | 1986-03-31 | 1987-10-07 | Nippon Denki Keiki Kenteishiyo | Polarity tester of transformer |
| CN101692115A (en) * | 2009-09-23 | 2010-04-07 | 河南省电力公司商丘供电公司 | Polarity tester for current transformer at transformer neutral point |
| CN201804071U (en) * | 2010-08-20 | 2011-04-20 | 嵩县电业局 | Polarity tester for current transformer |
| CN202815146U (en) * | 2012-10-19 | 2013-03-20 | 重庆创正互感器有限公司 | Polarity detector for mutual inductor |
| CN202994954U (en) * | 2012-12-24 | 2013-06-12 | 宁夏电力公司中卫供电局 | Portable polarity tester |
| CN202975236U (en) * | 2012-12-25 | 2013-06-05 | 特变电工康嘉(沈阳)互感器有限责任公司 | Direct current method transformer polarity detector |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107677915A (en) * | 2017-08-11 | 2018-02-09 | 国网山东省电力公司沂源县供电公司 | Use mutual inductor polarity measurement apparatus and its measuring method in Portable metering scene |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 300010 Tianjin city Hebei District Wujing Road No. 39 Applicant after: State Grid Corporation of China Applicant after: State Grid Tianjin Electric Power Company Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant before: State Grid Corporation of China Applicant before: State Grid Tianjin Electric Power Company |
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141126 |