CN2639905Y - Tong type meter checking instrument - Google Patents
Tong type meter checking instrument Download PDFInfo
- Publication number
- CN2639905Y CN2639905Y CN 03267945 CN03267945U CN2639905Y CN 2639905 Y CN2639905 Y CN 2639905Y CN 03267945 CN03267945 CN 03267945 CN 03267945 U CN03267945 U CN 03267945U CN 2639905 Y CN2639905 Y CN 2639905Y
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- pincerlike meter
- flow post
- pincerlike
- meter tester
- utility
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Abstract
The utility model discloses a clamp-meter calibration instrument, relating to the improvement of rising current columns, which comprises a body; wherein, a plurality of processing circuits and at least one rising current column are positioned inside of the body which is a hollow cylinder, fixed to a support structure and provided with cone shoulders on at least one end; a calibration coil is arranged inside the hollow cylinder. The utility model has the advantages that the calibration is more accurate and in addition very convenient due to the structure of rising current columns and fabrication process, for no person is needed to align the central place.
Description
Technical field
The utility model relates to a kind of instrument and meter that is used for the pincerlike meter verification, relates in particular to the improvement of the up-flow post in the pincerlike meter tester.
Background technology
Pincerlike meter is a kind of instrument that is used to measure the size of current of the electric wiring that is moving, it can measure electric current under the situation of not cutting off the power supply, pincerlike meter comes down to be made up of the instrument of reacting force a current transformer, pincerlike spanner and rectifier type magnetoelectricity series.The principle of work of pincerlike meter is as Fig. 1, Fig. 2 and shown in Figure 3, the clamp part 110 of pincerlike meter 100 is made by machinable high permeability material, as shown in Figure 1, described pincerlike meter is when being in closure state when measuring electric current, but because the limitation of processing technology, tie point A and B can not very be bonded into one, and this tie point A and B place all have certain leakage field to exist; And, because two regional ACB of described clamp part 110 and ADB area difference, to current such as lead, in the pincerlike meter tester, the up-flow post is the external structure of current, and the centre is the lead of current etc., and the induction of described clamp has difference.As shown in Figure 3, the electric current current that is both 1000 amperes is by the clamp part, and being placed on E place pincerlike meter, to record electric current be 1002 amperes, and being placed on F place pincerlike meter, to record electric current be 998 amperes, and to record electric current be 1000 amperes and be placed on G place pincerlike meter.
Therefore, the diverse location that described current is placed on the clamp part 110 of described pincerlike meter can cause that the pincerlike meter reading changes, location point A and B then are separations, and current is a steady state value near ACB zone reading, and current is another steady state value near ADB zone reading.
The pincerlike meter tester is to be used for the reading of pincerlike meter is carried out the instrument of verification, so that calibrate its reading, makes it accurately, therefore, the error when above-mentioned reading Changing Pattern just causes verification easily.
The up-flow post of existing pincerlike meter tester generally is a right cylindrical, winding mode is the single direction coiling, the material that uses generally is wooden three-ply board, as above-mentioned explanation to the pincerlike meter principle, the clamp of pincerlike meter part has up and down when the described up-flow post of clamp and changes, simultaneously because the pincerlike meter tester can be used to the pincerlike meter of the different clamp diameter of verification, therefore the clamp section diameter of pincerlike meter can be greater than the external diameter at described up-flow post, thereby described pincerlike meter described up-flow post when verification may be in E as shown in Figure 3, diverse locations such as F, when mobile, its diverse location changes the influence very greatly that can produce pincerlike meter verification reading to described pincerlike meter in the surface level perpendicular to described up-flow post.And columniform up-flow post is placed inconvenient to pincerlike meter, and especially to having the pincerlike meter of big clamp part, pincerlike meter can slide up and down when being placed on the up-flow post, does not have the fixed placement position.Existing winding mode also can cause the change in location of current in described up-flow post, for example is in as shown in Figure 3 location point E or F place, thereby causes the verification of pincerlike meter inaccurate.In addition, inconvenient, not attractive in appearance, the three-ply board insufficient strength of the pincerlike meter tester up-flow post of prior art shaping.
Therefore, prior art obviously exists deficiency and defective, awaits being improved.
Summary of the invention
The purpose of this utility model is to provide a kind of pincerlike meter tester, and it realizes the stable pincerlike meter with different-diameter clamp part of placing by improving the up-flow rod structure of placing pincerlike meter.
Further purpose of the present utility model is to provide a kind of pincerlike meter tester, and it utilizes improved winding mode, improves the distribution of current in described up-flow post, reduces the verify error that causes because of the current position.
A kind of pincerlike meter tester of the present utility model, described pincerlike meter tester comprises a body, this internal body is provided with treatment circuit, wherein, described pincerlike meter tester also comprises at least one up-flow post, it is a hollow cylinder, and support fixation is on a supporting construction, and this at least one end of up-flow post is provided with the taper shoulder; Be equipped with a verification coil in this hollow cylinder inside.
Described pincerlike meter tester, wherein, described up-flow post is set to two, and its diameter of section varies in size, and is respectively applied for the big value of verification and is worth pincerlike meter in a small amount.
Described pincerlike meter tester, wherein, described big value can pass through 1000 Ampere currents, and described little value can pass through 200 Ampere currents.
Described pincerlike meter tester, wherein, described up-flow post two ends all have the taper shoulder.
Described pincerlike meter tester, wherein, described verification coil passes through described up-flow post and turns to first and second two equal sub-coils that are interconnected.
Described pincerlike meter tester, wherein, described up-flow post is made by acetal plastic.
The utility model provides a kind of pincerlike meter tester, owing to adopted the up-flow post that is set to have sand control one taper shoulder, more stable when placing pincerlike meter, and can find suitable placement location at the pincerlike meter of different-diameter size clamp part, reduced because of change in location and caused the problem that influences check results.
Further, a kind of pincerlike meter tester that the utility model provides also owing to adopt the coiling current mode of carrying out equal sub-coil, has reduced the verify error that causes because of the current position.
Description of drawings
Fig. 1 is a pincerlike meter closure state synoptic diagram of the prior art;
Fig. 2 is the open mode synoptic diagram of pincerlike meter of the prior art;
Fig. 3 is the measuring principle synoptic diagram of pincerlike meter;
Fig. 4 is the schematic perspective view of pincerlike meter tester of the present utility model;
Fig. 5 is the synoptic diagram of first preferred embodiment of the up-flow post of pincerlike meter tester of the present utility model;
Fig. 6 is the diagrammatic cross-section of first preferred embodiment of the up-flow post of pincerlike meter tester of the present utility model;
Fig. 7 is the schematic top plan view of the coil winding mode in the up-flow post of pincerlike meter tester of the present utility model;
Fig. 8 is the side schematic view of the coil winding mode of pincerlike meter tester of the present utility model;
Fig. 9 is the synoptic diagram of up-flow post of second preferred embodiment of pincerlike meter tester of the present utility model;
Figure 10 is the synoptic diagram of up-flow post of the 3rd preferred embodiment of pincerlike meter tester of the present utility model.
Embodiment
Below, in detail each preferred embodiment of the present utility model is described in detail.
A kind of pincerlike meter tester 200 of the present utility model as shown in Figure 4, shows its local circumstance, and it comprises a body 210, and these body 210 inside are provided with treatment circuit, and its exterior panel is provided with LCDs, is used for different pincerlike meters are carried out verification; Described pincerlike meter tester 200 also comprises at least one up-flow post 220, as Fig. 5, Fig. 6, Fig. 9 and shown in Figure 10, described up-flow post 220 is a hollow cylinder, its support fixation is on a supporting construction, this supporting construction can be fixed with described body 210 one, also can with described body 210 independent settings, connect treatment circuit in the described body by circuit.At least one end of this up-flow post 220, be preferably the bottom, setting has a taper shoulder 221, this taper shoulder 221 makes things convenient for the pincerlike meter of different-diameter clamp part to fold up when being placed on the taper shoulder 221, can slip over from described taper shoulder 221 then from the smallest diameter portion 222 of described up-flow post 220, keep the horizontal positioned of described pincerlike meter this pincerlike meter can be placed on this up-flow post 220, and described up-flow post is in the center of the clamp part of described pincerlike meter, thereby pincerlike meter tester of the present utility model is more stable to the verification numerical value of pincerlike meter, and handled easily.
In the described pincerlike meter tester 200 of the present utility model, be equipped with a verification coil 230 in the hollow cylinder inside of described up-flow post 220, as shown in Figure 7 and Figure 8, this verification coil is divided into two equal sub-coils that interconnect 231,232, and be provided with angle and the clamp of described pincerlike meter of this two equal sub-coil 231,232 are partly cut apart situation and be suitable for mutually.Like this, in the time of on pincerlike meter being clipped in described up-flow post, the current values that the electromagnetism distribution formation center G of described two equal sub-coils 231,232 is ordered, therefore more accurate during the verification pincerlike meter, move a left side no matter pincerlike meter clamp part is upper and lower, right rotation or mobile, the pincerlike meter reading is comparatively constant.
Pincerlike meter tester of the present utility model, its up-flow post 220 usefulness acetal plastics (POLYACETAL) are made, its major advantage is, mechanical property and rigidity are near metal material, and electrical insulating property is good, and secondary workability is good, long-term serviceability temperature can reach more than 80 degree, because ampere-turn method coiling up-flow post, the number of turn can make described up-flow post distortion for a long time, and acetal plastic has satisfied the requirement of wire winding, heat processing technique, intensity and electromagnetism aspect in all its bearings.
In each embodiment of the present utility model, first embodiment as shown in Figure 5, the lower end of described up-flow post 220 has the taper shoulder, be arranged side by side the living fluidization tower 223,224 of two different cross section diameter, be respectively applied for the pincerlike meter of big value of verification and little value, for example be used for maximum by 1000 Ampere currents and maximum two up-flow posts by 200 Ampere currents.
Second embodiment of the present utility model, as shown in Figure 9, it has been arranged side by side two up-flow posts 223 ', 224 ', and the both ends of each up-flow post are provided with a taper shoulder respectively, and the taper shoulder all has certain radian, so that make product more attractive in appearance.
The 3rd embodiment of the present utility model, as shown in figure 10, it is provided with a living fluidization tower 220.
Pincerlike meter tester of the present utility model has the following advantages:
1) described up-flow rod structure of the present utility model and manufacture craft thereof make that the calibration of pincerlike meter is very convenient, need not be manually to the center.
2) winding mode of pincerlike meter tester of the present utility model makes the change in location of the relative current of pincerlike meter (up-flow post) very little to the influence of pincerlike meter reading, and former reading maximum error 3% can be controlled in 0.3% now, has improved the accuracy of verification.
Should be understood that; for those of ordinary skills; can make various changes that may be equal to or distortion according to the foregoing description of the present utility model and technical scheme, and all these changes or distortion all should belong to the protection domain of appended claim of the present utility model.
Claims (6)
1, a kind of pincerlike meter tester, described pincerlike meter tester comprises a body, this internal body is provided with treatment circuit, it is characterized in that, described pincerlike meter tester also comprises at least one up-flow post, it is a hollow cylinder, and support fixation is on a supporting construction, and this at least one end of up-flow post is provided with the taper shoulder; Be equipped with a verification coil in this hollow cylinder inside.
2, pincerlike meter tester according to claim 1 is characterized in that, described up-flow post is set to two, and its diameter of section varies in size, and is respectively applied for the big value of verification and is worth pincerlike meter in a small amount.
3, pincerlike meter tester according to claim 2 is characterized in that, described big value can pass through 1000 Ampere currents, and described little value can pass through 200 Ampere currents.
4, pincerlike meter tester according to claim 2 is characterized in that, described up-flow post two ends all have the taper shoulder.
5, pincerlike meter tester according to claim 1 is characterized in that, described verification coil passes through described up-flow post and turns to first and second two equal sub-coils that are interconnected.
6, pincerlike meter tester according to claim 5 is characterized in that, described up-flow post is made by acetal plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03267945 CN2639905Y (en) | 2003-07-25 | 2003-07-25 | Tong type meter checking instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03267945 CN2639905Y (en) | 2003-07-25 | 2003-07-25 | Tong type meter checking instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2639905Y true CN2639905Y (en) | 2004-09-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03267945 Expired - Fee Related CN2639905Y (en) | 2003-07-25 | 2003-07-25 | Tong type meter checking instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2639905Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3321697A1 (en) * | 2016-11-11 | 2018-05-16 | Fluke Corporation | Proving unit for non-contact voltage measurement systems |
| EP3321701A1 (en) * | 2016-11-11 | 2018-05-16 | Fluke Corporation | Proving unit for voltage measurement systems |
| CN109425781A (en) * | 2017-09-01 | 2019-03-05 | 弗兰克公司 | The proof unit being used together with electric test tool |
| US10551416B2 (en) | 2018-05-09 | 2020-02-04 | Fluke Corporation | Multi-sensor configuration for non-contact voltage measurement devices |
| US10557875B2 (en) | 2018-05-09 | 2020-02-11 | Fluke Corporation | Multi-sensor scanner configuration for non-contact voltage measurement devices |
| US10677876B2 (en) | 2018-05-09 | 2020-06-09 | Fluke Corporation | Position dependent non-contact voltage and current measurement |
| US10746767B2 (en) | 2018-05-09 | 2020-08-18 | Fluke Corporation | Adjustable length Rogowski coil measurement device with non-contact voltage measurement |
| US10775409B2 (en) | 2018-05-09 | 2020-09-15 | Fluke Corporation | Clamp probe for non-contact electrical parameter measurement |
| US10802072B2 (en) | 2018-05-11 | 2020-10-13 | Fluke Corporation | Non-contact DC voltage measurement device with oscillating sensor |
| US10908188B2 (en) | 2018-05-11 | 2021-02-02 | Fluke Corporation | Flexible jaw probe for non-contact electrical parameter measurement |
-
2003
- 2003-07-25 CN CN 03267945 patent/CN2639905Y/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10254375B2 (en) | 2016-11-11 | 2019-04-09 | Fluke Corporation | Proving unit for voltage measurement systems |
| EP3321701A1 (en) * | 2016-11-11 | 2018-05-16 | Fluke Corporation | Proving unit for voltage measurement systems |
| CN108072857A (en) * | 2016-11-11 | 2018-05-25 | 弗兰克公司 | The verification unit of voltage measurement system |
| CN108072856A (en) * | 2016-11-11 | 2018-05-25 | 弗兰克公司 | The verification unit of contactless voltage measurement system |
| EP3321697A1 (en) * | 2016-11-11 | 2018-05-16 | Fluke Corporation | Proving unit for non-contact voltage measurement systems |
| US10359494B2 (en) | 2016-11-11 | 2019-07-23 | Fluke Corporation | Proving unit for non-contact voltage measurement systems |
| US10539643B2 (en) | 2017-09-01 | 2020-01-21 | Fluke Corporation | Proving unit for use with electrical test tools |
| EP3454065A1 (en) * | 2017-09-01 | 2019-03-13 | Fluke Corporation | Proving unit for use with electrical test tools |
| CN109425781A (en) * | 2017-09-01 | 2019-03-05 | 弗兰克公司 | The proof unit being used together with electric test tool |
| US10551416B2 (en) | 2018-05-09 | 2020-02-04 | Fluke Corporation | Multi-sensor configuration for non-contact voltage measurement devices |
| US10557875B2 (en) | 2018-05-09 | 2020-02-11 | Fluke Corporation | Multi-sensor scanner configuration for non-contact voltage measurement devices |
| US10677876B2 (en) | 2018-05-09 | 2020-06-09 | Fluke Corporation | Position dependent non-contact voltage and current measurement |
| US10746767B2 (en) | 2018-05-09 | 2020-08-18 | Fluke Corporation | Adjustable length Rogowski coil measurement device with non-contact voltage measurement |
| US10775409B2 (en) | 2018-05-09 | 2020-09-15 | Fluke Corporation | Clamp probe for non-contact electrical parameter measurement |
| US10802072B2 (en) | 2018-05-11 | 2020-10-13 | Fluke Corporation | Non-contact DC voltage measurement device with oscillating sensor |
| US10908188B2 (en) | 2018-05-11 | 2021-02-02 | Fluke Corporation | Flexible jaw probe for non-contact electrical parameter measurement |
| US11209480B2 (en) | 2018-05-11 | 2021-12-28 | Fluke Corporation | Non-contact DC voltage measurement device with oscillating sensor |
| TWI779190B (en) * | 2018-05-11 | 2022-10-01 | 美商富克有限公司 | Non-contact dc voltage measurement device with oscillating sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |