CN207424117U - The combined instrument quickly measured for electric power mutual-inductor no-load voltage ratio - Google Patents
The combined instrument quickly measured for electric power mutual-inductor no-load voltage ratio Download PDFInfo
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- CN207424117U CN207424117U CN201720434184.1U CN201720434184U CN207424117U CN 207424117 U CN207424117 U CN 207424117U CN 201720434184 U CN201720434184 U CN 201720434184U CN 207424117 U CN207424117 U CN 207424117U
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- load voltage
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- 230000000694 effects Effects 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract 1
- 238000005259 measurement Methods 0.000 description 13
- 238000001727 in vivo Methods 0.000 description 6
- 238000004804 winding Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 238000000691 measurement method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The utility model discloses a kind of combined instruments quickly measured for electric power mutual-inductor no-load voltage ratio, including two high-precision detectors, two five section insulating bars and the wireless receiver A and wireless receiver B that are integrated in babinet;One end of high-precision detector sets two binding clips, and binding clip forms the circle being closed with detector body, and detector main body lower central sets insulating bar connector, be additionally provided in detector main body one for control the button key started shooting；Box house sets receiver display screen A and receiver display screen B close to the one side of receiver antenna, HOLD keys are equipped with below receiver display screen A, electronic calculator is set below HOLD keys, POWER keys are set below receiver display screen B, multi-functional multrirange clamp on amperemeter is set below POWER keys.The utility model advantageous effect is：Carrying aspect, using flexible, in terms of maintenance, energy livewire work, measuring speed is fast, work efficiency is high, and accurate performance is high.
Description
Technical field
The utility model is related to a kind of calibration equipment of electric system electric energy metering device, more precisely, being a kind of use
In the combined instrument that electric power mutual-inductor no-load voltage ratio quickly measures.
Background technology
Electric power mutual-inductor contains voltage transformer and current transformer：The no-load voltage ratio of voltage transformer refer to rated primary voltage with
The ratio between rated secondary voltage is also equal to the ratio between the voltage transformer first winding number of turn and the secondary winding number of turn.Current transformer
No-load voltage ratio refers to the ratio between rated primary current and rated secondary current, is also equal to the current transformer first winding number of turn and secondary winding
The inverse of the ratio between the number of turn.Voltage, the current transformer of scene operation are not necessarily specified item, and the actual motion no-load voltage ratio of mutual inductor is just
Equal to once, the ratio between secondary side voltage or electric current.No-load voltage ratio should be carried out when throwing doubt upon when mutual inductor replacement is done at scene or to multiplying power
It checks.Measurement no-load voltage ratio can check the accuracy of metering multiplying power.Measurement voltage ratio and measurement electric current ratio can draw voltage, electric current
The no-load voltage ratio of mutual inductor.Voltage change ratio is easy to operate at the scene, heavy workload during electric current no-load voltage ratio operates at the scene, not easy to operate.
The no-load voltage ratio survey calculation method of estimated current mutual inductor is as follows：
One:The traditional measurement method of low-voltage current mutual inductor no-load voltage ratio under live state：1st, tested current transformer is checked
Once, the correctness of secondary connection checks whether wire connection terminal is solid and reliable.2nd, in the case where current transformer is charged by one
Multrirange clamp on amperemeter be successively respectively connected to tested current transformer once, secondary circuit, record reading, the test of root Ju
Once, the ratio between secondary side current draw the no-load voltage ratio of current transformer.3rd, operator should keep certain safety with live wire
Distance, current measurement should carry out on insulated electric conductor, and when measurement, which should be specifically noted that, cannot make open circuit of secondary loop of current transformer.
Two：The traditional measurement method one of high-tension current inductor no-load voltage ratio under power down mode：1st, by tested current transformer
Have a power failure and isolated from system, secondary related protective loop exits.2nd, current transformer be tested secondary circuit access it is general
Energization flow table, by other secondary winding short circuits.Current lifting device and clamp on amperemeter are accessed in current transformer primary circuit.3rd, it is right
After above-mentioned loop check confirmation, adjusting current lifting device makes the primary current of application stable and has once, on secondary current table
Enough resolution ratio, and electric current is kept to stablize.Read current transformer once, the reading of secondary side current table and record, calculate
The no-load voltage ratio of current transformer.
Three：The traditional measurement method two of high-tension current inductor no-load voltage ratio under live state：Using wireless sensor technology, line
Road is not required to have a power failure.Successively once, on secondary circuit conducting wire being wirelessly transferred with split-core type meter measurement data in tested current transformer
To reading instrument.
There are the following problems for the measuring method of above-mentioned current transformer ratio：1st, current transformer measure when once, it is secondary
Circuit order has the priority time difference, and the instantaneous variation of load can influence the accuracy of measurement.2nd, measure even if two people and also deposit simultaneously
In the above problem.3rd, high-tension current inductor, which has a power failure, measures intricate operation.
The content of the invention
The utility model is primarily directed to the problems of prior art, so as to provide a kind of convenience, accurately be used for
The combined instrument that electric power mutual-inductor no-load voltage ratio quickly measures.
The above-mentioned technical problem of the utility model is mainly what is be addressed by following technical proposals：One kind is used for electric power
The combined instrument that mutual inductor ratio quickly measures, which is characterized in that including two high-precision detectors, detector A and detector
B, two five section insulating bars and the wireless receiver A and wireless receiver B that are integrated in babinet.
The detector includes two binding clips, button keys containing boot section, and insulating bar connector, one end of detector sets two
A binding clip, binding clip form the circle being closed with detector body, and detector main body lower central sets insulating bar connector, detector
Be additionally provided in main body one for control start shooting button key.
Include receiver antenna, receiver display screen A, receiver display screen B, the HOLD for data interlock in babinet
Key, POWER keys, electronic calculator and multi-functional multrirange clamp on amperemeter for controlling start；Receiver antenna is set and case
At the top of body, box house sets receiver display screen A and receiver display screen B close to the one side of receiver antenna, and receiver is shown
Shield and HOLD keys are equipped with below A, electronic calculator is set below HOLD keys, POWER keys, POWER keys are set below receiver display screen B
Lower section sets multi-functional multrirange clamp on amperemeter.
The detector is the full-automatic gear shift detectors of 0.00mA-1200A.
Its operation principle is：1）A, two high-precision detectors of B are fixed on the insulation operation of five sections by insulating bar connector
On bar, the POWER keys of two detectors are pressed, two binding clips of A, B is respectively perpendicular to once, secondary side conducting wire, is then pushed forward detection
The binding clip of instrument makes it vise tested conducting wire and measures；2）Combination in vivo two receivers of A, B of instrument case are connected into day
Line, by two power keys start shooting, pressed after 3 seconds data interlock key will once, secondary side data interlock.By combining the in vivo meter of instrument case
Calculate the no-load voltage ratio that current transformer is calculated in device；3）Take out the in vivo multi-functional multrirange clamp on amperemeter measurement two of combination instrument case
The voltage of secondary side, by the no-load voltage ratio that voltage transformer is calculated.
The utility model has the following advantages for the combined instrument that electric power mutual-inductor no-load voltage ratio quickly measures：Evade one
Secondary, secondary circuit is by the time difference mutually measured.Data are disposably read using one-touch data interlock key, improve the accurate of measurement
Property.
By production line practical application, preferably solve problems with and obtain some effects：
1：The problem of quick and precisely inerrably judging current transformer in metering device at the scene.Can quickly with user just
Metering device there are the problem of reach common understanding and remedy loss electricity.
2：The review time of situ metrology device is shortened, reduces the labor intensity of operating personnel, improves operation people
The work efficiency of member.
Description of the drawings
It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the structure diagram of main body, that is, two high-precision detectors of A, B of the utility model.
Fig. 2 is the structure diagram for two wireless receivers of A, B being integrated in babinet.
Wherein, 1, binding clip, 2, high-precision detector, 3, button key, 4, insulating bar connector, 5, five section insulating bars,
6th, receiver antenna, 7, receiver display screen, 8, HOLD keys, 9, POWER keys, 10, electronic calculator, 11, multi-functional multrirange
Clamp on amperemeter.
Specific embodiment
The preferred embodiment of the utility model is described in detail below in conjunction with the accompanying drawings, so that the advantages of the utility model
It can be easier to be readily appreciated by one skilled in the art with feature, it is apparent clear and definite so as to be made to the scope of protection of the utility model
Define.
As shown in Figure 1 and Figure 2, a kind of combined instrument quickly measured for electric power mutual-inductor no-load voltage ratio, which is characterized in that bag
Include two high-precision detectors（2）, i.e. detector A and detector B, two five section insulating bars 5 and it is integrated in babinet
Wireless receiver A and wireless receiver B.
The high-precision detector includes two binding clips containing boot section（1）, button key（3）, insulating bar connector（4）,
One end of detector sets two binding clips, and binding clip forms the circle being closed with detector body, and detector main body lower central is set absolutely
Edge bar connector, be additionally provided in detector main body one for control the POWER keys started shooting.
Include receiver antenna in the babinet（6）, two receiver display screens（7）, i.e. receiver display screen A, receive
Device display screen B, the HOLD keys for data interlock（8）, for control start POWER keys（9）, electronic calculator（10）With it is more
Function multrirange clamp on amperemeter；Receiver antenna is set and casing top, and box house sets close to the one side of receiver antenna and connects
Device display screen A and receiver display screen B is received, HOLD keys are equipped with below receiver display screen A, electronics calculating is set below HOLD keys
Device, receiver display screen B lower sections set POWER keys, multi-functional multrirange clamp on amperemeter are set below POWER keys.
The detector is the full-automatic gear shift detectors of 0.00mA-1200A.
Its operation principle is：1）A, two high-precision detectors of B are fixed on the insulation operation of five sections by insulating bar connector
On bar, the POWER keys of two detectors are pressed, two binding clips of A, B is respectively perpendicular to once, secondary side conducting wire, is then pushed forward detection
The binding clip of instrument makes it vise tested conducting wire and measures；2）Combination in vivo two receivers of A, B of instrument case are connected into day
Line, by two power keys start shooting, pressed after 3 seconds data interlock key will once, secondary side data interlock.By combining the in vivo meter of instrument case
Calculate the no-load voltage ratio that current transformer is calculated in device；3）Take out the in vivo multi-functional multrirange clamp on amperemeter measurement two of combination instrument case
The voltage of secondary side, by the no-load voltage ratio that voltage transformer is calculated.
Double clamps on amperemeter once, secondary current simultaneous measurement method：A, two receivers of B are started shooting reception simultaneously by power key
Once, the detection data of secondary circuit by HOLD locking keies are locked once, the detection data of secondary circuit, can evaded simultaneously
Once, secondary circuit is by mutually successively time difference of measurement.No-load voltage ratio is quickly calculated by calculator, improves the accuracy of measurement,
Make measurement more convenient, quick.
Not limited to this, any change or replacement expected without creative work should all be covered in the utility model
Protection domain within.Therefore, the scope of protection of the utility model should be determined by the scope of protection defined in the claims.
Claims (1)
1. a kind of combined instrument quickly measured for electric power mutual-inductor no-load voltage ratio, which is characterized in that detected including two high-precisions
Instrument, two five section insulating bars and the wireless receiver A and wireless receiver B that are integrated in babinet;
The high-precision detector includes two binding clips, buttons containing boot section, and insulating bar connector, one end of high-precision detector is set
Two binding clips, binding clip form the circle being closed with detector body, and detector main body lower central sets insulating bar connector, detect
Be additionally provided in instrument main body one for control start shooting button key；
Include receiver antenna, receiver display screen A, receiver display screen B, the HOLD for data interlock in the babinet
Key, POWER keys, electronic calculator and multi-functional multrirange clamp on amperemeter for controlling start；Receiver antenna is set and case
At the top of body, box house sets receiver display screen A and receiver display screen B close to the one side of receiver antenna, and receiver is shown
Shield and HOLD keys are equipped with below A, electronic calculator is set below HOLD keys, POWER keys, POWER keys are set below receiver display screen B
Lower section sets multi-functional multrirange clamp on amperemeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720434184.1U CN207424117U (en) | 2017-04-24 | 2017-04-24 | The combined instrument quickly measured for electric power mutual-inductor no-load voltage ratio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720434184.1U CN207424117U (en) | 2017-04-24 | 2017-04-24 | The combined instrument quickly measured for electric power mutual-inductor no-load voltage ratio |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207424117U true CN207424117U (en) | 2018-05-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720434184.1U Expired - Fee Related CN207424117U (en) | 2017-04-24 | 2017-04-24 | The combined instrument quickly measured for electric power mutual-inductor no-load voltage ratio |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2017
- 2017-04-24 CN CN201720434184.1U patent/CN207424117U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180529 Termination date: 20190424 |