CN104133104A - Novel telescopic type low-voltage tong-type ammeter - Google Patents
Novel telescopic type low-voltage tong-type ammeter Download PDFInfo
- Publication number
- CN104133104A CN104133104A CN201410396412.1A CN201410396412A CN104133104A CN 104133104 A CN104133104 A CN 104133104A CN 201410396412 A CN201410396412 A CN 201410396412A CN 104133104 A CN104133104 A CN 104133104A
- Authority
- CN
- China
- Prior art keywords
- shell
- housing
- stationary housing
- coil
- roll
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The invention discloses a novel telescopic type tong-type ammeter. The tong-type ammeter comprises a shell and an insulation telescopic rod fixedly connected with the bottom of the shell, a data display instrument is arranged at the bottom of the telescopic rod, the data display instrument is connected with a straight-through current transformer in the shell through a connecting wire inside the telescopic rod, the shell is a closed annular body composed of a fixed shell body and a rotating shell body hinged to the fixed shell body, the fixed shell body is fixedly connected with the telescopic rod, a fixed coil is fixedly arranged on the inner wall of the fixed shell body, a rotating coil is fixedly arranged on the rotating shell body, and under the normal state, a closed annular coil is composed of the fixed coil and the rotating coil. The novel telescopic type tong-type ammeter is suitable for measuring load currents on the low-voltage side and a branch circuit of a transformer of a distribution transformation table area, and is safe, efficient and convenient to use.
Description
Technical field:
The present invention relates to a kind of novel retractable low pressure clamp on amperemeter, be mainly used in the measurement of distribute-electricity transformer district step down side, branched line load current.
Background technology:
Substation transformer low-pressure side size of current affects the serviceable life of power supply quality and transformer, and long-term electric current is crossed conference and shortened transformer serviceable life, and the line end pressure drop of Shi Tai district is excessive, and supply voltage does not meet the demands.Due to reasons such as equipment failure, inclement weathers, there are abnormal conditions in the step down side electric current of power information acquisition system collection, need to go filling mining to scene.Common survey instrument is clamp on amperemeter in the market, it does not need after circuitry cuts, reometer access to be measured, its structure comprise reometer housing, can folding jaw, be arranged at current transformer and data display instrument in housing, jaw is positioned at the top of housing, the operation of jaw folding is positioned at case side face, and data display instrument is positioned at lower housing portion.When card is surveyed electric current, because the equipment installation sites such as primary cable, substation transformer are higher, need tester to ascend a height after hand-held clamp on amperemeter could measure, testing efficiency is low, and with live part close contact, dangerous.
Summary of the invention:
For overcoming the defect of prior art, while the object of the present invention is to provide a kind of measurement that is applicable to distribute-electricity transformer district step down side, branched line load current, telescopic low pressure clamp on amperemeter safe and efficient and easy to use.
Technical solution problem of the present invention adopts following technical scheme:
Novel retractable low pressure clamp on amperemeter, it comprises: housing and the insulating telescopic bar that is fixed on described housing bottom, the bottom of described expansion link is provided with data display instrument, and described data display instrument is connected with the straight-through current transformer in being arranged on described housing by the connecting line of expansion link inside;
Described housing is by stationary housing and is hinged on the closed hoop body that the roll-shell on stationary housing forms, described stationary housing and expansion link connect firmly, at described stationary housing inwall, be installed with fixed coil, on described roll-shell, be installed with rotating coil, under normality, described fixed coil and rotating coil form closed toroid winding.
Described stationary housing and fixed coil are totally U character form structure, described roll-shell and described stationary housing are hinged with bearing pin, and being provided with torsion spring on described bearing pin, two ends of described torsion spring are fitted in respectively the bottom surface of inwall and the roll-shell of stationary housing.
Described insulating telescopic bar is comprised of the not isometrical insulating bar of long 1.5 meters of three joints, and three joint insulating bars from top to bottom diameter increase successively, and upper joint insulating bar is plugged on successively in lower joint insulating bar and by the screw radially arranging on lower joint insulating bar and locks.
Compared with the prior art, beneficial effect of the present invention is embodied in:
1, roll-shell and stationary housing are hinged with bearing pin, and torsionspring is set on bearing pin, can make roll-shell sway and automatically reset, and have avoided needing to remove to open jaw with hand in traditional clamp on amperemeter, more convenient to operate.
2, expansion link is comprised of three joint insulating bars, what diameter was larger two opens two apertures tapping near thoroughly doing away with edge masthead portions, the long screw of exterior two models coupling, for adjustable telescopic rod length, time easy to carry, realize tester's remote-controlled operation testing tool, avoided close contact live wire, reduced falling from high altitude risk, safer, and be not subject to space constraint.
3, expansion link is inner is placed in expansion link bottom by spring connecting line connection data display instrument and straight-through current transformer data display instrument, has facilitated reading and record of data.
Accompanying drawing explanation:
Fig. 1 is novel retractable low pressure clamp on amperemeter structural representation; Fig. 2 is novel retractable low pressure clamp on amperemeter structure left view; Fig. 3 is the part of detecting structure cut-open view of reometer.
Number in the figure: 1 roll-shell, 2 stationary housings, 3 expansion links, 4 data display instruments, 5 current carrying conductors, 6 torsion springs, 7 fixed coils, 8 rotating coils.
Below pass through embodiment, and the invention will be further described by reference to the accompanying drawings.
Embodiment:
Embodiment: in conjunction with Fig. 1-3, the telescopic low pressure clamp on amperemeter of the present embodiment, it comprises: housing and the insulating telescopic bar 3 that is fixed on housing bottom, in the bottom of expansion link, be provided with data display instrument 4, data display instrument 4 is connected with the straight-through current transformer in being arranged on housing by the connecting line of expansion link inside.
Housing is by stationary housing 2 and is hinged on the closed hoop body that the roll-shell 1 on stationary housing forms, wherein, stationary housing 2 connects firmly with expansion link, at stationary housing 2 inwalls, be installed with fixed coil 7, on roll-shell 1, be installed with rotating coil 8, under normality, fixed coil 7 forms closed toroid winding with rotating coil 8, and closed toroid winding forms described straight-through current transformer.
Stationary housing 2 and fixed coil 7 are totally U character form structure, and the roll-shell 1 of crossbar type is hinged with bearing pin with stationary housing 2, and on bearing pin, is provided with torsion spring 6, and two ends of torsion spring are fitted in respectively the bottom surface of inwall and the roll-shell of stationary housing.Insulating telescopic bar is comprised of the not isometrical insulating bar of long 1.5 meters of three joints, and three joint insulating bars from top to bottom diameter increase successively, and upper joint insulating bar is plugged on successively in lower joint insulating bar and by the screw radially arranging on lower joint insulating bar and locks.
When measuring the electric current of distribute-electricity transformer district current carrying conductor 5, tester is adjusted to proper height expansion link 3, tighten the other adjusting screw of expansion link 3, the non-hinged end of roll-shell 1, be that opening portion is aimed at current carrying conductor 5, the expansion link 3 bottoms top ballast current wire 5 of exerting oneself of holding with a firm grip, roll-shell 1 rotates around bearing pin, torsion spring 6 is compressed, current carrying conductor 5 enters in straight-through current transformer smoothly, under the elastic force effect of torsion spring 6, roll-shell 1 resets, make the rotating coil 8 of straight-through current transformer form closed toroid winding with fixed coil 7, now by expansion link 3 inner spring type connecting lines, measurement data is presented on the data display instrument 4 of expansion link 3 bottoms, tester's reading out data record, after test completes, pull at expansion link 3 bottoms, current carrying conductor 5 will strut roll-shell 1 and depart from straight-through current transformer, and roll-shell 1 resets under the effect of torsion spring 6 simultaneously, is completed.
Claims (3)
1. novel retractable low pressure clamp on amperemeter, it is characterized in that comprising: housing and the insulating telescopic bar (3) that is fixed on described housing bottom, the bottom of described expansion link is provided with data display instrument (4), and described data display instrument is connected with the straight-through current transformer in being arranged on described housing by the connecting line of expansion link inside;
Described housing is by stationary housing (2) and is hinged on the closed hoop body that the roll-shell (1) on stationary housing forms, described stationary housing (2) connects firmly with expansion link, at described stationary housing (2) inwall, be installed with fixed coil (7), on described roll-shell (1), be installed with rotating coil (8), under normality, described fixed coil (7) forms closed toroid winding with rotating coil (8).
2. novel retractable low pressure clamp on amperemeter according to claim 1, it is characterized in that, described stationary housing (2) and fixed coil (7) are totally U character form structure, described roll-shell (1) is hinged with bearing pin with described stationary housing (2), and on described bearing pin, being provided with torsion spring (6), two ends of described torsion spring are fitted in respectively the bottom surface of inwall and the roll-shell of stationary housing.
3. novel retractable low pressure clamp on amperemeter according to claim 1, it is characterized in that, described insulating telescopic bar is comprised of the not isometrical insulating bar of long 1.5 meters of three joints, three joint insulating bars from top to bottom diameter increase successively, and upper joint insulating bar is plugged on successively in lower joint insulating bar and by the screw radially arranging on lower joint insulating bar and locks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410396412.1A CN104133104B (en) | 2014-08-13 | 2014-08-13 | Novel telescopic type low-voltage tong-type ammeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410396412.1A CN104133104B (en) | 2014-08-13 | 2014-08-13 | Novel telescopic type low-voltage tong-type ammeter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104133104A true CN104133104A (en) | 2014-11-05 |
| CN104133104B CN104133104B (en) | 2017-04-19 |
Family
ID=51805853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410396412.1A Active CN104133104B (en) | 2014-08-13 | 2014-08-13 | Novel telescopic type low-voltage tong-type ammeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104133104B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104569546A (en) * | 2014-12-28 | 2015-04-29 | 国家电网公司 | High-voltage line current measuring device |
| CN104931764A (en) * | 2015-06-24 | 2015-09-23 | 中山市木易万用仪器仪表有限公司 | Telescopic pincerlike ampere meter |
| CN105116179A (en) * | 2015-09-29 | 2015-12-02 | 国网浙江慈溪市供电公司 | Telescopic inspecting auxiliary device |
| CN105116284A (en) * | 2015-08-20 | 2015-12-02 | 苏州银蕨电力科技有限公司 | Intelligent power grid sensing device |
| CN106226561A (en) * | 2016-07-08 | 2016-12-14 | 国网福建省电力有限公司 | 500kV transformer station electrical test jointer combined complete and using method thereof |
| CN106405196A (en) * | 2016-11-08 | 2017-02-15 | 北京石油化工学院 | Mechanical clamping type high-voltage line load current telemetering instrument |
| CN108008156A (en) * | 2017-12-29 | 2018-05-08 | 国家电网公司 | A kind of telescopic clamp ammeter |
| CN108931707A (en) * | 2018-07-09 | 2018-12-04 | 国网山东省电力公司莱芜供电公司 | A kind of portable power distribution line electrical leakage device for fast detecting |
| CN112540215A (en) * | 2020-11-26 | 2021-03-23 | 广东电网有限责任公司 | Electricity stealing evidence obtaining device and electricity stealing evidence obtaining method |
| CN113608010A (en) * | 2021-10-11 | 2021-11-05 | 广东电网有限责任公司惠州供电局 | Telescopic clip-on ammeter |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102012447A (en) * | 2010-10-12 | 2011-04-13 | 邢台供电公司 | Telescopic clip-on ammeter |
| CN201804026U (en) * | 2010-10-12 | 2011-04-20 | 邢台供电公司 | Retractable pincer-like galvanometer |
| CN202230120U (en) * | 2011-08-09 | 2012-05-23 | 浙江大合建设工程检测有限公司 | Clip-on ammeter |
| CN202994885U (en) * | 2012-11-16 | 2013-06-12 | 宜阳县电业管理公司 | Telescopic tong-type ammeter |
| CN203164352U (en) * | 2013-04-07 | 2013-08-28 | 国家电网公司 | An electric leakage detecting device of a live low-voltage line |
| DE102012111285B3 (en) * | 2012-11-22 | 2014-02-13 | Turck Holding Gmbh | Signal isolator for isolating measuring signals, has auxiliary energy feeder connected in series with output and clamps of direct current to direct current converter, and measuring circuit measuring voltage lying at clamps |
| CN103592501A (en) * | 2013-11-27 | 2014-02-19 | 国家电网公司 | Low-voltage current measuring bar |
| CN203745527U (en) * | 2014-04-01 | 2014-07-30 | 尚英明 | Clip-on ammeter with load indicator especially for housing construction and management |
| CN203981754U (en) * | 2014-08-13 | 2014-12-03 | 国家电网公司 | Novel retractable low pressure clamp on amperemeter |
-
2014
- 2014-08-13 CN CN201410396412.1A patent/CN104133104B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102012447A (en) * | 2010-10-12 | 2011-04-13 | 邢台供电公司 | Telescopic clip-on ammeter |
| CN201804026U (en) * | 2010-10-12 | 2011-04-20 | 邢台供电公司 | Retractable pincer-like galvanometer |
| CN202230120U (en) * | 2011-08-09 | 2012-05-23 | 浙江大合建设工程检测有限公司 | Clip-on ammeter |
| CN202994885U (en) * | 2012-11-16 | 2013-06-12 | 宜阳县电业管理公司 | Telescopic tong-type ammeter |
| DE102012111285B3 (en) * | 2012-11-22 | 2014-02-13 | Turck Holding Gmbh | Signal isolator for isolating measuring signals, has auxiliary energy feeder connected in series with output and clamps of direct current to direct current converter, and measuring circuit measuring voltage lying at clamps |
| CN203164352U (en) * | 2013-04-07 | 2013-08-28 | 国家电网公司 | An electric leakage detecting device of a live low-voltage line |
| CN103592501A (en) * | 2013-11-27 | 2014-02-19 | 国家电网公司 | Low-voltage current measuring bar |
| CN203745527U (en) * | 2014-04-01 | 2014-07-30 | 尚英明 | Clip-on ammeter with load indicator especially for housing construction and management |
| CN203981754U (en) * | 2014-08-13 | 2014-12-03 | 国家电网公司 | Novel retractable low pressure clamp on amperemeter |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104569546A (en) * | 2014-12-28 | 2015-04-29 | 国家电网公司 | High-voltage line current measuring device |
| CN104569546B (en) * | 2014-12-28 | 2018-04-10 | 国家电网公司 | A kind of high-voltage line current measuring device |
| CN104931764A (en) * | 2015-06-24 | 2015-09-23 | 中山市木易万用仪器仪表有限公司 | Telescopic pincerlike ampere meter |
| CN105116284B (en) * | 2015-08-20 | 2018-02-06 | 苏州银蕨电力科技有限公司 | A kind of intelligent grid sensing device |
| CN105116284A (en) * | 2015-08-20 | 2015-12-02 | 苏州银蕨电力科技有限公司 | Intelligent power grid sensing device |
| CN105116179A (en) * | 2015-09-29 | 2015-12-02 | 国网浙江慈溪市供电公司 | Telescopic inspecting auxiliary device |
| CN106226561A (en) * | 2016-07-08 | 2016-12-14 | 国网福建省电力有限公司 | 500kV transformer station electrical test jointer combined complete and using method thereof |
| CN106405196A (en) * | 2016-11-08 | 2017-02-15 | 北京石油化工学院 | Mechanical clamping type high-voltage line load current telemetering instrument |
| CN108008156A (en) * | 2017-12-29 | 2018-05-08 | 国家电网公司 | A kind of telescopic clamp ammeter |
| CN108008156B (en) * | 2017-12-29 | 2020-01-07 | 国家电网公司 | Telescopic clamp-on ammeter |
| CN108931707A (en) * | 2018-07-09 | 2018-12-04 | 国网山东省电力公司莱芜供电公司 | A kind of portable power distribution line electrical leakage device for fast detecting |
| CN112540215A (en) * | 2020-11-26 | 2021-03-23 | 广东电网有限责任公司 | Electricity stealing evidence obtaining device and electricity stealing evidence obtaining method |
| CN113608010A (en) * | 2021-10-11 | 2021-11-05 | 广东电网有限责任公司惠州供电局 | Telescopic clip-on ammeter |
| CN113608010B (en) * | 2021-10-11 | 2022-03-22 | 广东电网有限责任公司惠州供电局 | Telescopic clip-on ammeter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104133104B (en) | 2017-04-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104133104A (en) | Novel telescopic type low-voltage tong-type ammeter | |
| CN102012447B (en) | Telescopic clip-on ammeter | |
| CN202994885U (en) | Telescopic tong-type ammeter | |
| CN102411068A (en) | Multifunctional wiring operating lever used for test of high-altitude electrical equipment | |
| CN202230120U (en) | Clip-on ammeter | |
| CN202126444U (en) | Multifunctional wiring operation rod for tests of high-altitude electric equipment | |
| CN203981754U (en) | Novel retractable low pressure clamp on amperemeter | |
| CN105182167A (en) | Low-voltage null line leakage current detection apparatus | |
| CN101975913A (en) | Equipment and method for testing two or more sections of zinc oxide arresters without detaching leads | |
| CN203444024U (en) | Built-in conductive wiring rod specially used for high-altitude mutual inductor ratio test | |
| CN103344877B (en) | Potable polarity test rod | |
| CN204439667U (en) | A kind of portable type current transformer testing clamp | |
| CN208580172U (en) | One kind being grounded situation device for fast detecting for power system device | |
| CN201804026U (en) | Retractable pincer-like galvanometer | |
| CN210224320U (en) | Short circuit and grounding auxiliary connector for horizontal connecting pile head | |
| CN206002564U (en) | A kind of dielectric loss and insulation resistance test conversion equipment and pilot system | |
| CN204758793U (en) | Special measuring apparatu of storage battery | |
| CN205229191U (en) | Insulator spindle with test electrography connector | |
| CN205799424U (en) | Current-voltage transformer body secondary connection post wrench special for fastening action bars | |
| CN104360175A (en) | Measurement method for head-dismounting-free turns ratio test of oil-oil sleeve pipe transformer | |
| CN205450243U (en) | Fault indicator coil tester | |
| CN204789785U (en) | Portable intelligent substation relay protection testing arrangement | |
| CN103944094A (en) | 10-kV handcart switch cabinet bus fixed contact ground method and special grounding device thereof | |
| CN112595911A (en) | 10kV pole-mounted lightning arrester live-line patrol inspection instrument | |
| CN203800188U (en) | 10kV handcart switch cabinet bus static contact special-purpose grounding device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |