A portable test tool for low-voltage power supply current transformers
A technology of current transformer and low-voltage power supply, which is applied in the field of portable test tools for low-voltage power-supply current transformers, can solve the problems affecting the accuracy of test data, wasted construction period of materials, time-consuming and labor-intensive testing, etc., so as to shorten the work process time and facilitate operation. , make simple effects
Active Publication Date: 2019-04-23
天津市百利纽泰克电气科技有限公司
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- Description
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Problems solved by technology
This test method has the following disadvantages: it is very difficult to fix the copper wire on the product terminal, it is not only time-consuming but also the contact is not firm, and the accuracy of the test data is directly affected due to poor contact
In order to test the accuracy, the test personnel need to test repeatedly, the test is time-consuming and laborious, and once there is a misjudgment, it will lead to waste of materials and even delays in the construction period
Method used
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Embodiment Construction
[0025] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples, and detailed descriptions are as follows with accompanying drawings:
[0026] See Figure 1 to Figure 6 , A portable test tool for a low-voltage power supply current transformer, comprising: a first component I connected to the first terminal 12, a second component II connected to the second terminal 13, the low-voltage power supply type in the preferred embodiment The current transformer 11 includes a first connection terminal 12 and a second connection terminal 13; the first component I includes a first insulating body 2 and two signal input lines 1; the first insulating body 2 is input by a embedded signal The main pole for line 1 and the vertical wall at one end of the main pole form a "T"-shaped structure; the other end of the main pole is provided with a first right plug-in terminal 5 and a first left plug-in terminal 6; The two...
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The invention discloses a portable test tool for low-voltage power supply current transformers. The portable test tool at least comprises a first part connected with a first wiring terminal and a second part connected with a second wiring terminal. The first part comprises a first insulating body and two signal input lines. The first insulating body is of a 'T'-type structure which is composed of a main rod and a vertical wall at one end of the main rod. A first right plug terminal and a first left plug terminal are arranged at the other end of the main rod. The two signal input lines are plugged into the vertical wall, and then passes through the main rod to be electrically connected with the first right plug terminal and the first left plug terminal. The second part includes a second insulating body and two signal output lines. The second insulating body is of a strip structure. A second left plug terminal and a second right plug terminal are arranged at one end of the second insulating body. The two signal output lines are plugged into the other end of the second insulating body, and then pass through the second insulating body to be electrically connected with the second left plug terminal and the second right plug terminal.
Description
Technical field [0001] The invention relates to the technical field of current transformers, in particular to a portable test tool for low-voltage power supply current transformers. Background technique [0002] As we all know, the principle of current transformer is based on the principle of electromagnetic induction. The current transformer is composed of a closed core and windings. Its primary winding has a few turns, which is stringed in the line of the current that needs to be measured. Therefore, it often has all the current flowing through the line. The secondary winding has a large number of turns. It is serially connected to the measuring instrument and the protection circuit, and the current mutual inductance When the transformer is working, its secondary loop is always closed, so the impedance of the series coil of the measuring instrument and the protection loop is very small, and the working state of the current transformer is close to short circuit. The function o...
Claims
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IPC IPC(8): G01R1/04
CPCG01R1/0416
Inventor 孙世元蔚浩王玉李娟宋颖硕
Owner 天津市百利纽泰克电气科技有限公司