Three-phase current transformer
A three-phase current, transformer technology, applied in the direction of inductor, transformer/inductor shell, transformer/inductor coil/winding/connection, etc., can solve the problems of instrument damage, many wiring, poor space utilization, etc. The effect of preventing damage and reducing the number of wires
Inactive Publication Date: 2016-05-11
济南铂晶电子科技股份有限公司
View PDF11 Cites 4 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0002] The wiring of three-phase four-wire watt-hour meters with current transformers is a very rigorous work for electricians, and there are often safety hazards such as damage to various instruments and human injury caused by wrong wiring.
The traditional wiring me
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0023] In order to better understand the technical solution of the present invention, the present invention will be further described below in conjunction with the accompanying drawings.
[0024] Such as Figure 1-6 As shown, a three-phase current transformer includes: a housing 1, three supporting columns 41 are arranged in the housing, and an iron core 51 is installed on each supporting column, and a winding 3 is wound on the iron core, A first insulating layer is provided between the winding and the iron core, a second insulating layer is provided on the outer surface of the iron core wound with the winding, and a shielding sheet 53 is arranged on the outside of the second insulating layer, and the shielding sheet The first and last ends of the winding are not in direct contact, and the shell is provided with five terminals 2: IN, G, IA, IB and IC; the input ends of the winding are all connected to the terminals IN, and the shielding sheet is connected with Lead wire 54, t...
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
Login to View More Abstract
A three-phase current transformer comprises a shell. Three supporting columns are arranged in the shell. Each supporting column is provided with an iron core. Each iron core is wound by a winding. A first insulation layer is arranged between each winding and the corresponding iron core. A second insulation layer is arranged on the outer surface of each iron core wound by the winding. A shielding piece is arranged on the outer side of each second insulation layer. The head ends and the tail ends of the shielding pieces do not make contact directly. Five wiring terminals IN, G, IA, IB and IC are arranged on the shell. The input ends of the windings are connected to the wiring terminal IN. A lead is connected to each shielding piece. The leads are connected to the wiring terminal G. The output ends of the windings are connected with the wiring terminal IA or IB or IC. A resistor is connected between the input end and the output end of each winding. The three-phase current transformer further comprises a pouring sealant for sealing the whole transformer. Wiring of a three-phase watt hour meter is optimized, the space utilization rate is increased, the yield is improved, the universality is good, and the three-phase current transformer is suitable for large-scale production.
Description
technical field [0001] The invention relates to the field of electrical equipment, in particular to a three-phase current transformer. Background technique [0002] The wiring of three-phase four-wire watt-hour meters with current transformers is a very rigorous work for electricians. Wrong wiring often leads to safety hazards such as damage to various instruments and human injury. The traditional wiring method is that one phase of three-phase electricity is connected to a single current transformer. This wiring method is not only scattered and numerous, which will easily cause wiring errors, but also has poor space utilization and high cost. Contents of the invention [0003] In order to solve the above technical problems, the present invention proposes a three-phase current transformer, which optimizes the wiring of three-phase watt-hour meters, improves space utilization, reduces finished products, has good versatility, and is suitable for large-scale production. [00...
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
Login to View More IPC IPC(8): H01F38/38H01F27/04H01F27/32H01F27/36H01F27/40H01F27/02
CPCH01F27/022H01F27/04H01F27/324H01F27/36H01F27/40H01F38/38
Inventor 季红雨李威良宋蓬勃
Owner 济南铂晶电子科技股份有限公司