CN201156056Y - Clip-on meter for current on-line measurement of high voltage and high amplitude line - Google Patents
Clip-on meter for current on-line measurement of high voltage and high amplitude line Download PDFInfo
- Publication number
- CN201156056Y CN201156056Y CNU2007201020987U CN200720102098U CN201156056Y CN 201156056 Y CN201156056 Y CN 201156056Y CN U2007201020987 U CNU2007201020987 U CN U2007201020987U CN 200720102098 U CN200720102098 U CN 200720102098U CN 201156056 Y CN201156056 Y CN 201156056Y
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- line
- jaw opening
- line measurement
- meter
- electric current
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Abstract
The utility model relates to a clamp meter used for the high-voltage and high-altitude circuit current on line measurement, which belongs to the measuring technical field, and is used for solving the problem of high voltage line on line measurement. The clamp meter comprises a meter body and clamping pincers; wherein, the clamping pincers is composed of a movable jaw opening and a fixed jaw opening which are mutually hinged, the both jaw openings are in closed condition to form a closed ring, the fixed jaw opening is fixedly connected with the surface, after the clamp meter is improved, a crimping lug is added, which adopts a half ring shape matched with the shape of the movable jaw opening, one part of the crimping lug is fixed on the movable jaw opening, and the other part extends to the fixed jaw opening part. The crimping lug is arranged on the clamping pincers of the clamp meter, after lines enter the jaw opening of the clamping pincers, the lines contact with the crimping lug, the jaw opening of the clamping pincers can be closed or opened, and the operation is simple. The clamp meter has the advantages that the design is reasonable, the conception is skillful, the structure is simple, the realization is easy and the operation is convenient, and the clamp meter provides a suitable implement for the high voltage line on line measurement.
Description
Technical field
The utility model relates to a kind of surveying instrument, measures the pincerlike meter of electric current especially for can not having a power failure on the hi-line, belongs to field of measuring technique.
Background technology
The hi-line on-line measurement has certain danger and difficulty, and it need watch out for operating personnel's electric shock on the one hand, and the also non-easy thing of detecting instrument is set on the high-tension line at several meters that is above the ground level on the other hand.Traditional field-checking operation of equipment complexity, necessary again power failure operation impacts for normal electricity consumption.Adopt common forcipated mutual-inductor to utilize line electricity magnetic induction to measure the method that flows through size of current in the conductor, a kind of desirable detection method of can yet be regarded as, but the problem that exists is: the terrestrial operation personnel are being kept off under the situation of lead, safety, easy pincerlike meter is arranged on the hi-line, and can easy to do it be taken off.Existing way is to connect an auxiliary connecting rod (or stay cord) at a pincers handle place of pincerlike meter conductor clamp, realizes that by the operation pull bar conductor clamp opens and closes.This mode is operated inconvenience and is made the pincerlike meter structure numerous and diverse.
Summary of the invention
The utility model is used to overcome the defective of prior art and a kind of pincerlike meter that is used for high pressure high-altitude circuit on-line measurement electric current easy to operate, simple in structure is provided.
The alleged problem of the utility model solves with following technical proposals:
A kind of pincerlike meter that is used for high pressure high-altitude circuit on-line measurement electric current, be provided with table body and conductor clamp in the formation, described conductor clamp is by the movable clamp port that is hinged and decide jaw and form, both form closed-loop when the closure state position, it is affixed with the table body to decide jaw, and its special feature is: set up line-ball tongue, line-ball tongue is the semicircular that mates with the movable clamp port profile, a described line-ball tongue part is fixed with movable clamp port, and another part extends to deciding the jaw position, becomes to make the reliable closed power strong point of pincers row table.
The above-mentioned pincerlike meter that is used for high pressure high-altitude circuit on-line measurement electric current, described table body bottom is provided with insulating bar, and insulating bar and table body are for removably connecting.
The above-mentioned pincerlike meter that is used for high pressure high-altitude circuit on-line measurement electric current, described conductor clamp axis and vertical direction angle β are 30 °～45 °.
The above-mentioned pincerlike meter that is used for high pressure high-altitude circuit on-line measurement electric current, described line-ball tongue extension accounts for 1/2～2/3 of line-ball tongue integral body.
The above-mentioned pincerlike meter that is used for high pressure high-altitude circuit on-line measurement electric current, described line-ball tongue is a semicircular arc, its transversal section is a flute profile, groove width with decide jaw thickness and mate.
The utility model improves at common pincerlike meter not easy-operating problem when electrification in high voltage detects, on the conductor clamp of this table, be provided with line-ball tongue, after circuit enters the conductor clamp jaw, utilize circuit to press line-ball tongue, can make the jaw tight closure of conductor clamp, and can not unclamp, operate very easy.Described table body bottom is provided with insulating bar, the testing staff only need hand insulating bar can be on ground with the pincerlike meter lodge on hi-line, the operating process human body does not contact with hi-line, so the operation of needn't ascending a height needn't be provided with auxiliary connecting rod, again safe ready.The utility model is reasonable in design, be skillfully constructed, simple in structure, be easy to realize that be convenient to operation, it provides handy utensil for the hi-line on-line measurement, this design also can be used on the association area high-altitude application.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the A-A sectional drawing of Fig. 1;
Fig. 3 is the structural representation of conductor clamp when the opening position;
Number in the figure is expressed as follows: show body 1.; 2. conductor clamp; 3. decide jaw; 4. movable clamp port; 5. line-ball tongue; 5-1. line-ball tongue extension; 6. insulating bar; 7. conductor clamp axis; 8. hi-line; 9. mutual inductor winding.
Embodiment
Referring to Fig. 1, Fig. 3, comprise table body 1 and conductor clamp 2 during the utility model constitutes, conductor clamp is by the movable clamp port 4 that is hinged and decide jaw 3 and form, the closed-loop of closure state formation between the two, this closed-loop can be the geometric configuration of circular, oval or other sealing, and it is affixed with the table body to decide jaw.Crucial part of the present utility model is to set up line-ball tongue 5, the semicircular that line-ball tongue is and the movable clamp port profile is mated (being semi-annular shape in the present embodiment), and a line-ball tongue part is fixing with movable clamp port 4, and another part is to deciding the extension of jaw position, as shown in Figure 3.Line-ball tongue extension 5-1 accounts for 1/2～2/3 of line-ball tongue integral body and is advisable.Be provided with the insulating bar 6 that holds for operating personnel in table body bottom, insulating bar and table body are for removably connecting.For ease of carrying, insulating bar can be connect by several pole pairs and form.Consider that from the angle of being convenient to operate conductor clamp axis 7 is 30 °～45 ° with vertical direction angle β.
Referring to Fig. 1, Fig. 2, the line-ball tongue transversal section is a flute profile, its groove width with decide jaw thickness and mate.During the conductor clamp closure state, decide in the groove of jaw embedding line-ball tongue.
When the utility model uses, install insulating bar earlier, pull movable clamp port then to state shown in Figure 3, lift insulating bar, make hi-line 8 enter moving, decide line-ball tongue bottom between the jaw, unclamp hand, pincerlike meter is sagging naturally under action of gravity, press line-ball tongue to hi-line, move on the line-ball tongue, drive the movable clamp port closure.In testing process, be subjected to the acting force of hi-line all the time, so conductor clamp can not opened owing to line-ball tongue.Detection finishes, and upwards touches insulating bar, and the movable clamp port bottom is contacted with hi-line, is subjected to downward power effect, and movable clamp port opens, and pincerlike meter can take off.
Current transformer in use in order to guarantee its measuring accuracy, needs often parameters such as its no-load voltage ratio to be checked, and " the current transformer on-line measuring device " among the figure promptly is the instrument that this check detects.Extension set in the principle schematic is used for the measuring circuit electric current, main frame is used to measure tested Current Transformer Secondary side electric current, the numerical value that extension set records is emitted to main frame after treatment, in the data processing circuit on main frame both data is calculated, is analyzed, and tries to achieve the actual no-load voltage ratio of mutual inductor.Because reading is read on hand-held host display, and only passes through the wireless transmission swap data between extension set and the main frame, does not contact with high-tension line, so the testing staff is as safe as a house.
Claims (5)
1. pincerlike meter that is used for high pressure high-altitude circuit on-line measurement electric current, be provided with table body (1) and conductor clamp (2) in the formation, described conductor clamp is by the movable clamp port that is hinged and decide jaw and form, both form closed-loop when the closure state position, it is affixed with the table body to decide jaw (3), it is characterized in that: set up line-ball tongue (5), line-ball tongue is the semicircular that mates with the movable clamp port profile, a described line-ball tongue part is fixing with movable clamp port (4), and another part extends to deciding the jaw position.
2. the pincerlike meter that is used for high pressure high-altitude circuit on-line measurement electric current according to claim 1 is characterized in that: described table body bottom is provided with insulating bar (6), and insulating bar and table body are for removably connecting.
3. the pincerlike meter that is used for high pressure high-altitude circuit on-line measurement electric current according to claim 2 is characterized in that: described conductor clamp axis (7) is 30 °～45 ° with vertical direction angle β.
4. according to claim 1 or the 2 or 3 described pincerlike meters that are used for high pressure high-altitude circuit on-line measurement electric current, it is characterized in that: described line-ball tongue extension (5-1) accounts for 1/2～2/3 of line-ball tongue integral body.
5. the pincerlike meter that is used for high pressure high-altitude circuit on-line measurement electric current according to claim 4 is characterized in that: described line-ball tongue is a semicircular arc, and its transversal section is a flute profile, groove width with decide jaw thickness and mate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201020987U CN201156056Y (en) | 2007-07-31 | 2007-07-31 | Clip-on meter for current on-line measurement of high voltage and high amplitude line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201020987U CN201156056Y (en) | 2007-07-31 | 2007-07-31 | Clip-on meter for current on-line measurement of high voltage and high amplitude line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201156056Y true CN201156056Y (en) | 2008-11-26 |
Family
ID=40103837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201020987U Expired - Fee Related CN201156056Y (en) | 2007-07-31 | 2007-07-31 | Clip-on meter for current on-line measurement of high voltage and high amplitude line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201156056Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104215820A (en) * | 2014-10-10 | 2014-12-17 | 国网重庆市电力公司电力科学研究院 | Novel high-voltage tong-type ammeter |
| CN105785162A (en) * | 2015-01-13 | 2016-07-20 | 弗兰克公司 | Testing device power induced by current transformer |
| CN105866508A (en) * | 2016-04-28 | 2016-08-17 | 云南省计量测试技术研究院 | Online current testing clamp for flexible optical fiber |
| CN106569006A (en) * | 2016-11-09 | 2017-04-19 | 国网山东省电力公司临朐县供电公司 | Telescopic type clamp-on ammeter for overhead line measurement |
| CN112290678A (en) * | 2020-10-22 | 2021-01-29 | 许继集团有限公司 | High-voltage current monitoring device with self-locking structure and operation method thereof |
-
2007
- 2007-07-31 CN CNU2007201020987U patent/CN201156056Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104215820A (en) * | 2014-10-10 | 2014-12-17 | 国网重庆市电力公司电力科学研究院 | Novel high-voltage tong-type ammeter |
| CN105785162A (en) * | 2015-01-13 | 2016-07-20 | 弗兰克公司 | Testing device power induced by current transformer |
| CN105866508A (en) * | 2016-04-28 | 2016-08-17 | 云南省计量测试技术研究院 | Online current testing clamp for flexible optical fiber |
| CN105866508B (en) * | 2016-04-28 | 2018-09-18 | 云南省计量测试技术研究院 | The online testing current pincers of flexible optical fibre |
| CN106569006A (en) * | 2016-11-09 | 2017-04-19 | 国网山东省电力公司临朐县供电公司 | Telescopic type clamp-on ammeter for overhead line measurement |
| CN106569006B (en) * | 2016-11-09 | 2019-04-02 | 国网山东省电力公司临朐县供电公司 | A kind of Telescopic clip-on ammeter for overhead transmission line measurement |
| CN112290678A (en) * | 2020-10-22 | 2021-01-29 | 许继集团有限公司 | High-voltage current monitoring device with self-locking structure and operation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081126 Termination date: 20110731 |