CN204731360U - A kind of current transformer polarity rapid verification instrument - Google Patents
A kind of current transformer polarity rapid verification instrument Download PDFInfo
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- CN204731360U CN204731360U CN201520432865.5U CN201520432865U CN204731360U CN 204731360 U CN204731360 U CN 204731360U CN 201520432865 U CN201520432865 U CN 201520432865U CN 204731360 U CN204731360 U CN 204731360U
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- 238000012795 verification Methods 0.000 title claims abstract description 14
- 238000009434 installation Methods 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 description 33
- 238000004804 winding Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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Abstract
The utility model discloses a kind of current transformer polarity rapid verification instrument, its ambroin shell (13) is provided with battery terminal L1(4), battery terminal L1(4) connect Cell On-Off switch (1), Cell On-Off switch (1) connects electric battery (10), electric battery (10) connects battery terminal L2(5), ammeter wiring terminal K1(8) concatenation pointer formula reometer (6), indicator type current meter (6) connects red LED lamp (2) respectively, green LED lamp (3), red LED lamp (2) connects the first switching diode (11), green LED lamp (3) connects second switch diode (12), first switching diode (11), second switch diode (12) all connects ammeter wiring terminal K2(9), the utility model structure is simple, easy for installation, be easy to carry, time saving and energy saving, experimental result is directly perceived, verification fast accurately.
Description
Technical field:
The present invention relates to a kind of current transformer polarity rapid verification instrument, be widely used in, in electric system current transformer polarity verification test, belonging to substation equipment maintenance and repair site technology field.
Background technology:
At present, current mutual inductor on site verification mostly uses pointer multimeter+dry cell batteries+test wire, during execute-in-place, dry cell batteries is held by 1 people, 1 people holds the pointer multimeter being connected to mutual inductor secondary side, 1 people touches current transformer primary side terminal block at Switch main body test wire, observes multimeter beat of pointer situation touching between Shun.Need three people operation and time-consuming longer, execute-in-place is loaded down with trivial details, and primary side touch need instantaneously two people coordinate, disconnect or observe once occur coordinating not in time, easily determine inaccurate beat of pointer direction, cause same winding repeatedly to test, and being mainly engaged in verification by personnel probably there is deviation.
Summary of the invention:
The object of the invention is to overcome above-mentioned prior art deficiency and provide a kind of structure simple, easy for installation, be easy to carry, time saving and energy saving, experimental result is directly perceived, verification accurate current transformer polarity rapid verification instrument fast.
Object of the present invention can be reached by following measure: a kind of current transformer polarity rapid verification instrument, it comprises ambroin shell, it is characterized in that ambroin shell is provided with Cell On-Off switch, indicator type current meter, red LED lamp, green LED lamp, battery terminal L1, battery terminal L2, ammeter wiring terminal K1, ammeter wiring terminal K2, electric battery is connected by battery draw-in groove in ambroin shell, the first switching diode is provided with in ambroin shell, second switch diode, battery terminal L1 connects Cell On-Off switch, Cell On-Off switch connects electric battery, electric battery connects battery terminal L2, ammeter wiring terminal K1 concatenation pointer formula reometer, indicator type current meter connects red LED lamp respectively, green LED lamp, red LED lamp connects the first switching diode, green LED lamp connects second switch diode, first switching diode, second switch diode all connects ammeter wiring terminal K2.
The present invention can produce following good effect compared with the prior art: the present invention can carry out polarity verification by external application test wire and testing wire clamp joint test loop in advance fast, and test findings is intuitively informed test people by red LED lamp, green LED lamp.There is following characteristics:
1, structure is simple.The present invention includes inner loop, state display part is divided, housing department grades.Wherein inner loop is made up of electric battery and Cell On-Off switch.State display part is divided and is made up of red LED lamp, green LED lamp, two switching diodes and indicator type current meter; Housing parts is ambroin shell.Fitting part when it uses is made up of test wire and testing wire clamp;
2, reduce test operation personnel, save labour.The utility model is provided with battery draw-in groove and connects the current wiring terminal of test wire, eliminates the special staff connecting dry cell batteries.The another adhesion test line of the present invention and testing wire clamp, can be fixed on current transformer primary side in advance test wire.
3, shorten test period, increase work efficiency.The present invention is provided with Cell On-Off switch, a people can be had to carry out the break-make work of the direct current momentary current of primary side, and observe the swing situation of ammeter pointer simultaneously, stop the deviation because personnel's matching problem causes.
4, test findings is accurate, distinct.The present invention is provided with red green pilot lamp, can find out current transformer polarity check results more intuitively.
5, span is tested flexible.The present invention can operate at small space or across interval isometric distance equipment room.Small product size is little, lays, easy to carry.
Accompanying drawing illustrates:
Fig. 1 is structural representation of the present invention;
Fig. 2 is the circuit theory diagrams of cell terminal subdivision of the present invention;
Fig. 3 is the circuit theory diagrams of LED part of the present invention.
Electric principle schematic when Fig. 4 is positive polarity of the present invention test;
Embodiment:
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated:
Embodiment: a kind of current transformer polarity rapid verification instrument (see Fig. 1-Fig. 4), it comprises ambroin shell 13, ambroin shell 13 is provided with Cell On-Off switch 1, indicator type current meter 6, red LED lamp 2, green LED lamp 3, battery terminal L14, battery terminal L25, ammeter wiring terminal K18, ammeter wiring terminal K29, electric battery 10 is connected by battery draw-in groove in ambroin shell 13, the first switching diode 11 is provided with in ambroin shell 13, second switch diode 12, battery terminal L14 connects Cell On-Off switch 1, Cell On-Off switch 1 connects electric battery 10, electric battery 10 connects battery terminal L25, ammeter wiring terminal K18 concatenation pointer formula reometer 6, indicator type current meter 6 connects red LED lamp 2 respectively, green LED lamp 3, red LED lamp 2 connects the first switching diode 11, green LED lamp 3 connects second switch diode 12, first switching diode 11, second switch diode 12 all connects ammeter wiring terminal K29.
During use, battery terminal 4,5 is caused current transformer winding side by test wire, and be fixed on winding side P1, a P2 with test testing wire clamp; Current wiring terminal 8,9 is caused on secondary winding in current transformer side S1, S2 by test wire.Electric battery 10 selects No. 1 battery 4 to save composition, and the red LED lamp 2 that Cell On-Off switch 1 selects Minisize press button switch state display part to divide and green LED lamp 3 select 330MR2C type LED, and indicator type current meter 6 selects MF47C type pointer gauge.
Positive polarity is tested:
Be fixed on current transformer primary side P1, P2 by battery terminal 4,5 by test wire and testing wire clamp, wherein battery terminal 4 is connected to the P1 end of current transformer primary side, and battery terminal 5 is connected to the P2 end of current transformer primary side; Cause on Current Transformer Secondary side S1, S2 by current wiring terminal 8,9 by test wire, current wiring terminal 8 is connected to the S1 end of Current Transformer Secondary side, and current wiring terminal 9 is connected to the S2 end of Current Transformer Secondary side.Now use the moment that Cell On-Off switch 1 analogue enlargement primary current passes through, electric current flows into from current wiring terminal 8 through test wire, indicator type current meter 6 pointer positively biased, red light loop is by switching diode 11 conducting effect, flowed out through current wiring terminal 9 by test wire, make the conducting of whole loop, red LED lamp 2 is bright.Green LED lamp 3, due to the deadening effect of switching diode 12, makes loop disconnect, and green LED lamp 3 does not work.
Reversed polarity is tested:
Be fixed on current transformer primary side P2, P1 by battery terminal 4,5 by test wire and testing wire clamp, wherein battery terminal 4 is connected to the P2 end of current transformer primary side, and battery terminal 5 is connected to the P1 end of current transformer primary side; Cause on Current Transformer Secondary side S1, S2 by current wiring terminal 8,9 by test wire, current wiring terminal 8 is connected to the S2 end of Current Transformer Secondary side, and current wiring terminal 9 is connected to the S1 end of Current Transformer Secondary side.Now use the moment that Cell On-Off switch 1 analogue enlargement primary current passes through, electric current flows into from current wiring terminal 9 through test wire, indicator type current meter 6 pointer is reverse-biased, green light loop is by switching diode 12 conducting effect, flowed out through current wiring terminal 8 by test wire, make the conducting of whole loop, green LED lamp 3 is bright.Red LED lamp 2, due to the deadening effect of switching diode 11, makes loop disconnect, and red LED lamp 2 does not work.
Claims (1)
1. a current transformer polarity rapid verification instrument, it comprises ambroin shell (13), it is characterized in that ambroin shell (13) is provided with Cell On-Off switch (1), indicator type current meter (6), red LED lamp (2), green LED lamp (3), battery terminal L1(4), battery terminal L2(5), ammeter wiring terminal K1(8), ammeter wiring terminal K2(9), electric battery (10) is connected by battery draw-in groove in ambroin shell (13), the first switching diode (11) is provided with in ambroin shell (13), second switch diode (12), battery terminal L1(4) connect Cell On-Off switch (1), Cell On-Off switch (1) connects electric battery (10), electric battery (10) connects battery terminal L2(5), ammeter wiring terminal K1(8) concatenation pointer formula reometer (6), indicator type current meter (6) connects red LED lamp (2) respectively, green LED lamp (3), red LED lamp (2) connects the first switching diode (11), green LED lamp (3) connects second switch diode (12), first switching diode (11), second switch diode (12) all connects ammeter wiring terminal K2(9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520432865.5U CN204731360U (en) | 2015-06-23 | 2015-06-23 | A kind of current transformer polarity rapid verification instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520432865.5U CN204731360U (en) | 2015-06-23 | 2015-06-23 | A kind of current transformer polarity rapid verification instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204731360U true CN204731360U (en) | 2015-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520432865.5U Expired - Fee Related CN204731360U (en) | 2015-06-23 | 2015-06-23 | A kind of current transformer polarity rapid verification instrument |
Country Status (1)
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| CN (1) | CN204731360U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105842579A (en) * | 2016-05-31 | 2016-08-10 | 国网青海省电力公司西宁供电公司 | Portable current transformer polarity tester |
| CN106680645A (en) * | 2015-11-10 | 2017-05-17 | 国网辽宁省电力有限公司本溪供电公司 | Current transformer polarity test device |
| CN106871768A (en) * | 2017-04-17 | 2017-06-20 | 云南滇源建设有限公司 | A kind of hydraulic tunnel grout hole inspecting hole device |
| CN107807343A (en) * | 2017-12-08 | 2018-03-16 | 国家电网公司 | Small-sized DC voltage generation circuit for the verification of electronic mutual inductor polarity |
| CN108776320A (en) * | 2018-06-07 | 2018-11-09 | 中铁电气化（武汉）设计研究院有限公司 | A kind of no-load voltage ratio of current transformer, Check up polarity test method and device |
-
2015
- 2015-06-23 CN CN201520432865.5U patent/CN204731360U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106680645A (en) * | 2015-11-10 | 2017-05-17 | 国网辽宁省电力有限公司本溪供电公司 | Current transformer polarity test device |
| CN105842579A (en) * | 2016-05-31 | 2016-08-10 | 国网青海省电力公司西宁供电公司 | Portable current transformer polarity tester |
| CN106871768A (en) * | 2017-04-17 | 2017-06-20 | 云南滇源建设有限公司 | A kind of hydraulic tunnel grout hole inspecting hole device |
| CN107807343A (en) * | 2017-12-08 | 2018-03-16 | 国家电网公司 | Small-sized DC voltage generation circuit for the verification of electronic mutual inductor polarity |
| CN108776320A (en) * | 2018-06-07 | 2018-11-09 | 中铁电气化（武汉）设计研究院有限公司 | A kind of no-load voltage ratio of current transformer, Check up polarity test method and device |
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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: 20151028 Termination date: 20160623 |
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| CF01 | Termination of patent right due to non-payment of annual fee |