Combined transformer for power system

A technology combining transformers and power systems, applied in inductors, circuits, voltage dividers, etc., can solve problems such as voltage part must be calibrated on site, secondary signal processing loop is complex, and cannot be plug-and-play.

Active Publication Date: 2013-07-03
传奇电气(沈阳)有限公司
View PDF7 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the processing circuit of the secondary signal is complicated, and the output signal is accompanied by white noise. When there is no primary current, due to the interference of white noise, the combined transformer will also output the secondary signa

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
  • Combined transformer for power system
  • Combined transformer for power system
  • Combined transformer for power system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0055] In order to have a clearer understanding of the technical features, objectives and effects of the invention, the specific embodiments of the invention will now be described with reference to the drawings. The same reference numerals in each figure indicate the same or similar parts with the same function.

[0056] In order to make the drawings concise, the drawings only schematically show the parts related to the present invention, and they do not represent the actual structure of the product. In addition, in order to make the drawings concise and easy to understand, in some drawings, only one of the components with the same structure or function is schematically shown, or only one of them is marked.

[0057] In this article, "a" not only means "only this one", but can also mean "more than one". In this article, "parallel" between two objects does not mean absolute parallelism in the geometric sense, but can include the allowable deviation during assembly processing.

[0058]...

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

No PUM Login to view more

Abstract

The invention provides a combined transformer for a power system. The combined transformer comprises a casing (10), a base (2) and an insulator (30). A current transformer (12) is arranged in the casing and can detect the current in a primary conductor (40) in the power system. A voltage transformer (32) is arranged in the insulator and comprises a resistance voltage division circuit (34), a capacitor voltage division circuit (36), a secondary voltage division resistor (37) and an output branch circuit (38), wherein one end of the resistance voltage division circuit is electrically connected with the primary conductor, and the other end is electrically connected with a secondary voltage division potential point of the capacitor voltage division circuit; and the capacitor voltage division circuit is realized by multiple layers of capacitive screens. The combined transformer for the power system, provided by the invention, can be used without error calibration after site installation, and can realize instant use after being plugged..

Description

Technical field [0001] The invention relates to a combined transformer used in a power system, in particular to an independent electronic combined transformer. Background technique [0002] The power system needs to use transformers to measure high voltage, high current and high voltage to realize the protection, control and electric energy measurement of the power system. In this process, the primary high voltage and the secondary low voltage need to be electrically isolated. The combined transformer is a device that has both current and voltage measurement functions and can simultaneously electrically isolate primary high voltage and secondary low voltage. [0003] In the traditional combined transformer, the current and voltage measurement adopt the electromagnetic transformer technology with iron core based on the principle of Faraday electromagnetic induction. At present, this combined transformer is widely used in power systems all over the world. Since the voltage transfo...

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
IPC IPC(8): H01F38/34G01R15/06H01F38/36
Inventor 林芳敏
Owner 传奇电气(沈阳)有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap