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Clamping extender of clamp meter, clamp meter assembly and current measuring method

A technology of clamp meter and extender, which is applied in the fields of clamp meter extender, clamp meter assembly and current measurement, and can solve problems such as loose wires, poor contact, damaged wire layout, and electric shock hazards.

Pending Publication Date: 2018-06-12
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a clamp meter clamp extender, a clamp meter assembly and a current measurement method, aiming at solving the problem that the clamp meter in the prior art needs to pull the wire when measuring the wire current, thereby destroying the wire layout and causing Technical problems with loose wires, poor contact, or short circuits between phases and potential electric shock hazards

Method used

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  • Clamping extender of clamp meter, clamp meter assembly and current measuring method
  • Clamping extender of clamp meter, clamp meter assembly and current measuring method
  • Clamping extender of clamp meter, clamp meter assembly and current measuring method

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specific Embodiment

[0030] like Figure 1-3 As shown, a clamp meter clamp extender includes: two S-shaped inner cores, two insulating sleeves and two fixing components; the two S-shaped inner cores include a first S-shaped inner core 1, a second S-shaped inner core Type inner core 2; two insulating sleeves include a first insulating sleeve 3 and a second insulating sleeve 4; two fixing assemblies include a first fixing assembly 5 and a second fixing assembly 6; the first S-shaped inner core 1 and the The second S-shaped inner core 2 is made of a magnetically conductive material; one end of the first S-shaped inner core 1 is provided with a connecting surface for connecting the first clamp 7 in the clamp meter clamp, and the other end is provided with a connecting surface for The contact surface that is in contact with the second S-shaped inner core; one end of the second S-shaped inner core is provided with a connecting surface for connecting the second clamp 8 in the clamp meter clamp, and the o...

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Abstract

The embodiment of the invention provides a clamping extender of a clamp meter, a clamp meter assembly and a current measuring method. The clamping extender comprises a first sigmoid inner core, a second sigmoid inner core, a first insulation sleeve, a second insulation sleeve, a first fixing assembly and a second fixing assembly; the first fixing assembly is used for connecting the first sigmoid inner core with a first clamp; the second fixing assembly is used for connecting the second sigmoid inner core with a second clamp; the sum of the width of the smallest external rectangle correspondingto the first sigmoid inner core and the width of the smallest external rectangle corresponding to the second sigmoid inner core is smaller than the sum of the width of the smallest external rectanglecorresponding to the first clamp and the width of the smallest external rectangle corresponding to the second clamp. According to the clamping extender, by penetrating a to-be-measured guiding wire through the position between the first sigmoid inner core and the second sigmoid inner core, destruction of a guiding wire layout, loosening and poor contact of a guiding wire, interphase short circuitand potential electric shock dangers caused by pulling of the guiding wire are prevented.

Description

technical field [0001] The invention belongs to the technical field of electronic instrument equipment, and more specifically relates to a clamp meter extender, a clamp meter assembly and a current measurement method. Background technique [0002] With the transformation of urban and rural power grids, the metering devices of residents are more centralized, the distance between the meters in the centralized meter box is getting smaller and smaller, and the wiring is getting closer and closer, which increases the difficulty of current measurement of wires. Because the existing clamp meter has a large volume, about 25 cm in length, 8 cm in width, and 4 cm in thickness, it is necessary to pull the wire away for a certain distance when measuring the current of the wire, so that the wire can be placed in the clamp of the clamp meter. , so it is easy to destroy the layout of the wires, and even cause the wires to loosen, resulting in poor contact. If the insulation layer of the t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R1/04G01R1/22G01R15/18
CPCG01R1/0416G01R1/22G01R15/186
Inventor 李清仁李冰剑李子旺李勇军赵庆祥
Owner STATE GRID CORP OF CHINA
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