Unlock instant, AI-driven research and patent intelligence for your innovation.

Wide temperature miniature combined current transformer

A current transformer, combined technology, applied in the direction of inductor, transformer/inductor core, transformer/inductor coil/winding/connection, etc., can solve the magnetic field interference of multiple coils and the poor high and low temperature stability of current transformer. And other issues

Active Publication Date: 2021-05-11
河北申科电力股份有限公司 +5
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention provides a wide-temperature micro-combined current transformer to solve the problems of poor high and low temperature stability of current transformers in the prior art, magnetic field interference among multiple coils, etc.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Wide temperature miniature combined current transformer
  • Wide temperature miniature combined current transformer
  • Wide temperature miniature combined current transformer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A wide temperature miniature combined current transformer provided in this embodiment, according to the attached figure 1 To attach figure 2 As shown, it includes outer box 1, upper cover 2, pin header 3, primary CT cable 4, injection CT coil 5, gasket one 6, measurement CT coil 7, gasket two 8, and detection CT coil 9.

[0031] The outer box 1 of this embodiment is a rectangular box body, and the inside of the outer box 1 is arranged in parallel with an injection CT coil 5 , a gasket one 6 , a measurement CT coil 7 , a gasket two 8 , and a detection CT coil 9 . Insert the primary CT cable 4 on one side of the outer box 1, and the primary CT cable 4 passes through the injection CT coil 5, washer 1 6, measurement CT coil 7, washer 2 8, and detection CT coil 9 in sequence, and then from the same side of the outer box 1 lead out. Both ends of the primary CT cable 4 are respectively provided with connection terminals 41 .

[0032] The upper cover 2 of this embodiment is...

Embodiment 2

[0046] When the current transformer in the present invention is used as the transformer module of the CT secondary circuit state inspection instrument, the injection CT coil 5, the measurement CT coil 7, and the detection CT coil 9 inside the current transformer are connected to the inspection instrument through the needle row 3. connected to the circuit board in which the processor is installed.

[0047] When using the inspection instrument to detect the metering circuit, the terminal 41 at one end of the primary CT cable 4 is used to connect the current sensor in the metering circuit, and the terminal 41 at the other end of the primary CT cable 4 is connected to the electric energy meter, that is, the inspection instrument string into the metering circuit.

[0048] The specific working principle is: when the inspection instrument is working, the processor will inject a medium and low frequency signal into the CT coil 5, and a feedback signal will be generated in the detectio...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
electrical resistanceaaaaaaaaaa
electrical resistanceaaaaaaaaaa
electrical resistanceaaaaaaaaaa
Login to View More

Abstract

The invention relates to a wide-temperature micro-combined current transformer, which includes an outer box and an upper cover arranged on the outer box, and is characterized in that: an injection CT coil, a gasket 1, a measuring CT coil, and a gasket 2 are sequentially arranged in parallel inside the outer box 1. Detecting the CT coil, one side of the outer box penetrates a primary CT cable and leads out from the same side of the outer box after passing through the above-mentioned components in sequence, the two ends of the primary CT cable are respectively provided with terminals, and the injected CT coil The windings of the measuring CT coil and the detecting CT coil are respectively connected to the pin headers arranged on the surface of the upper cover. The invention solves the problems of poor high and low temperature stability of the current transformer in the prior art, magnetic field interference among multiple coils, and the like.

Description

technical field [0001] The invention relates to the technical field of current transformers, in particular to a wide-temperature micro combined current transformer. Background technique [0002] With the rapid development of the national economy, electricity consumption continues to increase, and electricity prices continue to rise. There is no lack of commercial ports, enterprises and individuals to reduce electricity costs by stealing electricity, and the means of stealing electricity presents the characteristics of high technological content and strong concealment. In order to realize the intelligent diagnosis and comprehensive analysis of the overall electric energy metering device, and improve the ability to solve problems such as faults and electricity theft, CT secondary circuit status inspection instrument came into being. This secondary circuit state inspection instrument includes a power module, a current transformer CT circuit state monitoring unit, a processor a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01F38/30H01F27/30H01F27/29H01F27/24H01F27/38
CPCH01F27/24H01F27/292H01F27/306H01F27/38H01F38/30H01F2038/305
Inventor 韩丹丹王力崇刘中华刘光跃裴兆鹏
Owner 河北申科电力股份有限公司