CN203981754U - Novel retractable low pressure clamp on amperemeter - Google Patents
Novel retractable low pressure clamp on amperemeter Download PDFInfo
- Publication number
- CN203981754U CN203981754U CN201420455100.9U CN201420455100U CN203981754U CN 203981754 U CN203981754 U CN 203981754U CN 201420455100 U CN201420455100 U CN 201420455100U CN 203981754 U CN203981754 U CN 203981754U
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- Prior art keywords
- housing
- stationary housing
- shell
- roll
- expansion link
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- Withdrawn - After Issue
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- 238000004804 winding Methods 0.000 claims abstract description 6
- 238000005259 measurement Methods 0.000 abstract description 4
- 239000004020 conductor Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
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- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
The utility model discloses a kind of 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.The utility model is applicable to the measurement of distribute-electricity transformer district step down side, branched line load current, safe and efficient and easy to use.
Description
Technical field:
The utility model relates to a kind of novel retractable low pressure clamp on amperemeter, is 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, when the purpose of this utility model 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.
The utility model technical solution problem 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, the beneficial effects of the utility model are 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 utility model is described in further detail 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 |
|---|---|---|---|
| CN201420455100.9U CN203981754U (en) | 2014-08-13 | 2014-08-13 | Novel retractable low pressure clamp on amperemeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420455100.9U CN203981754U (en) | 2014-08-13 | 2014-08-13 | Novel retractable low pressure clamp on amperemeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203981754U true CN203981754U (en) | 2014-12-03 |
Family
ID=51979188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420455100.9U Withdrawn - After Issue CN203981754U (en) | 2014-08-13 | 2014-08-13 | Novel retractable low pressure clamp on amperemeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203981754U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104133104A (en) * | 2014-08-13 | 2014-11-05 | 国家电网公司 | Novel telescopic type low-voltage tong-type ammeter |
| CN106443085A (en) * | 2016-10-09 | 2017-02-22 | 国家电网公司 | Telescopic high-altitude wiring device |
-
2014
- 2014-08-13 CN CN201420455100.9U patent/CN203981754U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104133104A (en) * | 2014-08-13 | 2014-11-05 | 国家电网公司 | Novel telescopic type low-voltage tong-type ammeter |
| CN104133104B (en) * | 2014-08-13 | 2017-04-19 | 国家电网公司 | Novel telescopic type low-voltage tong-type ammeter |
| CN106443085A (en) * | 2016-10-09 | 2017-02-22 | 国家电网公司 | Telescopic high-altitude wiring device |
| CN106443085B (en) * | 2016-10-09 | 2023-11-28 | 国家电网公司 | Telescopic high-altitude wiring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141203 Effective date of abandoning: 20170419 |
|
| AV01 | Patent right actively abandoned |