Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A reactive power compensation type capacitor step-down power-taking device and working method

A technology of capacitive step-down and power-taking device, which is applied in the field of power supply, can solve problems such as power supply of power grid monitoring devices, and achieve the effects of increasing output power, high power-taking efficiency, and increasing power-taking power

Active Publication Date: 2021-07-13
XI AN JIAOTONG UNIV
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a reactive power compensation type capacitive step-down power-taking device to solve the power supply problem of the grid monitoring device

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
  • A reactive power compensation type capacitor step-down power-taking device and working method
  • A reactive power compensation type capacitor step-down power-taking device and working method
  • A reactive power compensation type capacitor step-down power-taking device and working method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] The 10kV transmission line power taking device is installed between the 10kV line and the ground, and is used to supply power to monitors, DTU devices and other loads after the 10kV transmission line takes power.

[0058] The high-voltage power-taking capacitor is a high-voltage capacitor of 2000pF;

[0059] The compensation capacitor is a high-voltage capacitor of 48nF;

[0060] The effective value of the primary side voltage of the transformer is 680V;

[0061] The varistor voltage of the varistor is 3 times of the primary side voltage of the transformer, and the flow current is 1kA;

[0062] The transformer is 720V / 5V, and the excitation inductance is 200H.

Embodiment 2

[0064] The 10kV transmission line power taking device is installed between the 10kV transmission line and the ground.

[0065] The high-voltage power-taking capacitor is a high-voltage capacitor of 7000pF;

[0066] The compensation capacitor is a high-voltage capacitor of 6nF;

[0067] The effective value of the primary side voltage of the transformer is 4000V;

[0068] The varistor voltage of the varistor is 5 times of the primary side voltage of the transformer, and the flow current is 5kA;

[0069] The transformer is 4200V / 380V, and the excitation inductance is 700H.

Embodiment 3

[0071] The 35kV transmission line power taking device is installed between the 35kV transmission line and the ground.

[0072] The high-voltage power-taking capacitor is a high-voltage capacitor of 1000pF;

[0073] The compensation capacitor is a high-voltage capacitor of 49nF;

[0074] The effective value of the primary side voltage of the transformer is 480V;

[0075] The varistor voltage of the varistor is three times the primary voltage of the transformer, and the flow current is 3kA;

[0076] The transformer is 500V / 5V, and the excitation inductance is 200H.

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 discloses a reactive power compensation type capacitor step-down power-taking device. The high-voltage power-taking capacitor is used to obtain a stable AC current from the high-voltage side AC voltage; the compensation capacitor is used to compensate the excitation current of the transformer; It is used to absorb the inrush current and limit the voltage of the power-taking circuit; the transformer is used to increase the AC current, increase the power of the power, and output the obtained AC power. The invention can obtain high-power and stable electric energy at high-potential points such as high-voltage lines, can cope with various overvoltages that may occur on the high-voltage side, and can provide power for various monitoring devices and the like.

Description

technical field [0001] The invention belongs to the technical field of power supplies, and in particular relates to a reactive power compensation capacitor step-down power-taking device. Background technique [0002] With the construction of the ubiquitous power Internet of Things, the demand for various smart terminals continues to expand. At present, 540 million smart meters and other monitoring devices in the power Internet of Things have been connected, and billions of smart terminals will be equipped in the power grid in the future. Monitoring devices such as smart terminals in the power Internet of Things are mainly used to monitor the operating status of the power system and various electrical equipment, and upload operating data to the system in real time. Both the monitoring and communication of smart terminals need to be driven by power. Based on the base number of monitoring devices such as smart terminals and the wide range of installation locations, battery powe...

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): H02J3/00H02M5/12
CPCH02J3/00H02M5/12
Inventor 杨兰均史宇昊
Owner XI AN JIAOTONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com