Straight-through current transformer for measuring voltage by penetrating wire wrapper

A current transformer and core-through technology, which is applied in the field of transformers, can solve the problems of easy electricity theft and low efficiency, and achieve the effects of avoiding electricity theft, simple use, convenient use and management

Active Publication Date: 2008-10-15
HUBEI SHENGJIA ELECTRIC EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems of complex operation, low efficiency, easy electricity stealing and large space occupation in the current method of peeling and obtaining voltage, the present invention provides a current transformer, which can conveniently obtain voltage by innovatively designing the structure of the current transformer signal, and it perfectly solves the problem of easy power theft and low efficiency in the current way of taking voltage

Method used

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  • Straight-through current transformer for measuring voltage by penetrating wire wrapper
  • Straight-through current transformer for measuring voltage by penetrating wire wrapper
  • Straight-through current transformer for measuring voltage by penetrating wire wrapper

Examples

Experimental program
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Effect test

Embodiment 1

[0040] A core-through current transformer that utilizes a puncture method to obtain voltage from the sheathed wire, referring to Figures 1 to 5, it includes a transformer body 1 with a core-through hole 1-1, and the transformer body 1 is respectively provided with The voltage line terminal 2 and the voltage-taking component 3 are electrically connected, and this connection includes any electrical connection in the prior art. The voltage taking part 3 in this embodiment has a sharp front end, and the transformer of this structure can be applied on the wire 10 covered with insulation, and the front end of the spike can pierce the insulation skin of the wire 10, so that the voltage taking The component 3 is electrically connected with the metal wire in the insulating skin so as to realize the extraction of the voltage signal of the wire.

[0041] Specifically, the spiked front end of the voltage-taking component is a group of front ends with needle-like or saw-tooth structures. I...

Embodiment 2

[0048] For the situation where the voltage is taken by the metal stud 4 as a conductor, a more preferred structure is to fix the metal insert 1-2 on the transformer body 1, and the metal insert 1-2 is connected to the voltage line terminal 2 Electrical connection; the metal stud 4 is threadedly connected with the metal insert 1-2, and the metal stud 4 can move radially along the through hole.

[0049] A more preferred structure is that on the transformer body 1, two metal inserts 1-2 are set around the through-hole 1-1, refer to Figure 7 , all metal inserts 1-2 are electrically connected through conductor 15, refer to Figure 8 , the conductor 15 in this embodiment is a metal sheet, of course, wires can also be used for electrical connection. All metal inserts 1-2 are threadedly connected with metal studs 4, like this, the voltage-taking parts in two directions simultaneously pierce the tip into the busbar, making the electrical connection more stable and accurate, thereby be...

Embodiment 3

[0054] The difference from the existing structure is that the No. 1 anti-stealing mask 5 described in this embodiment is connected to the surface of the transformer body 1 in a non-detachable manner. It can be seen that the anti-stealing mask defined in this embodiment is fixed. On the body of the transformer, in this way, the transformer can be used in any position and not limited to the box. The mask is connected to the transformer body in a non-detachable way, that is to say, after the metering department fixes the anti-stealing mask to the transformer, the mask cannot be removed from the transformer without destroying it. Those who can't hide the eyes and ears to steal electricity can greatly increase the degree of protection against electricity theft.

[0055] refer to Figure 9 to Figure 11 , this non-detachable connection structure is that the No. 1 anti-stealing mask 5 located on one side of the transformer is a whole, and the No. 1 anti-stealing mask 5 is provided wi...

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PUM

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Abstract

The invention provides a feed through current transformer which uses a puncturing method to get voltage from a wrapped wire, and relates to a transformer; aiming at the problems of complex operation, easy electricity-theft under the low efficiency and larger occupy space in the existing mode of getting voltage by peeling the sheath, the invention provides a feed through current transformer which uses a puncturing method to get voltage from a wrapped wire, and comprises a transformer body (1), which is provided with a wiring terminal (2) of a voltage wire and a part (3) for getting the voltage which have connection relation; the part (3) for getting the voltage has a sharp front end which can pierce the insulated sheath of a bus conveniently and contact with a metal core, thus realizing the purpose of getting voltage. The current transformer of the invention has simple structure, small occupy space, low cost and fast mode of getting voltage, and can greatly improve the working efficiency; at the same time, the connection of the part for getting voltage and the bus is stable, getting voltage is precise and reliable and the condition of electricity-theft is avoided effectively, thereby being beneficial to promotion and application.

Description

technical field [0001] The invention relates to a transformer. Background technique [0002] In many feed-through current transformers currently used, the voltage signal is obtained from the exposed busbar. For the busbar with insulation, the voltage needs to be obtained by peeling off the busbar insulation. This voltage acquisition method exists The disadvantages of complex operation and low efficiency, and electricity thieves often take the method of removing or cutting the wires, so that the voltage signal cannot enter the energy meter. Or insert insulating objects at the junction of the connection point and the bus bar to reduce the voltage metering to achieve electricity stealing. In addition, electricity stealers also use loads connected in series before the connection point to achieve electricity stealing and control voltage reduction. Therefore, practical applications In order to prevent criminals from stealing electricity through the above means, the metering depar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F38/24H01F38/26H01R4/24
Inventor 万家盛
Owner HUBEI SHENGJIA ELECTRIC EQUIP
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