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Manganese-copper sampler capable of resisting power frequency interference

A power frequency interference and sampler technology, which is applied in the field of anti-power frequency interference manganese copper sampler, can solve the problems such as the inability to meet power frequency interference, achieve suppression of power frequency magnetic field interference, reduce the area of ​​the envelope coil, and reduce the magnetic field The effect of induced current

Active Publication Date: 2015-04-15
JIANGSU KAOUEARN ELECTRICAL APP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Purpose of the invention: The purpose of the present invention is to provide a manganese copper sampler that suppresses power frequency magnetic field interference in view of the problem that the prior art cannot meet the requirements of power frequency interference

Method used

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  • Manganese-copper sampler capable of resisting power frequency interference
  • Manganese-copper sampler capable of resisting power frequency interference
  • Manganese-copper sampler capable of resisting power frequency interference

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Embodiment Construction

[0011] The present invention will be described in detail with reference to the accompanying drawings:

[0012] Such as figure 2 As shown, the present invention first changes the welding method of the current sampling wire in the manganin sampler, changing the welding direction of the sampling welding wire 3 to opposite welding, and the two sections of the sampling welding wire 3 form an acute angle with one side of the manganin connecting piece 4.

[0013] Then change the position between the plane where the two sampling welding wires 3 are located and the plane where the manganese-copper connecting piece 4 is located, and now the angle between the two surfaces is controlled at 135°±5°, so that the induced current formed by the power frequency signal The induced current formed by the circuit board cancels each other out, enhancing the ability to resist power frequency interference.

[0014] The present invention increases the number of twisted turns of the current sampling wire. Ev...

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Abstract

The invention provides a manganese-copper sampler capable of resisting power frequency interference, which comprises a voltage sampling wire, current sampling wires, sampling weld wires, a manganese-copper connection piece and a casing, wherein the voltage sampling wire is welded on the manganese-copper connection piece; the two current sampling wires are twisted to form a current sampling twisted wire, one end of each current sampling wire is welded on the manganese-copper connection piece through each of the two sampling weld wires; an acute angle is formed between each of the two sampling weld wires and one side of the manganese-copper connection piece; an obtuse angle is formed between a plane where the two sampling weld wires are located, and a plane where the manganese-copper connection piece is located; and the manganese-copper connection piece is connected with a current path in the casing. According to the sampler, envelope coil areas of the sampling wires, and directions of coils of envelope wires of the sampling wires are reduced, magnetic field induced current is reduced, and the power frequency magnetic field interference is effectively suppressed.

Description

Technical field [0001] The invention relates to the technical field of electronic instruments, in particular to an anti-power frequency interference manganese copper sampler. Background technique [0002] At present, the design of the manganese copper sampler of domestic electric meters is still designed in accordance with the power frequency magnetic field requirements in the original electric energy meter standards, such as figure 1 As shown, the original welding line is welded upwards along the same direction of the manganin connecting piece, and the two welding lines are parallel. But now with the gradual increase in user power consumption, the continuous increase in current specifications, and the increase in substation area, power frequency magnetic field interference is becoming more and more obvious. In response to this phenomenon, the State Grid proposed power frequency magnetic field creeping requirements. After actual tests, the design of the existing manganese copper ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R22/06G01R19/00
Inventor 邹继东蒋志峰刘辉万自信李鑫杰张玉娇罗恒娟
Owner JIANGSU KAOUEARN ELECTRICAL APP
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