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

An intelligent blocking device and method for power lines

A power line and intelligent technology, which is applied in the direction of emergency protection circuit devices, improvement of basic electrical components, electrical components, etc., can solve problems such as cumbersome work, low efficiency, and affecting power consumption on the user side, and achieve cumbersome work and low efficiency. Effect

Active Publication Date: 2022-05-17
ZHUHAI LIANDIAN TECH CO LTD
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Voltage transformer (abbreviated as PT) is a very important device on the power line. It is generally divided into metering PT, measurement PT, switching power supply PT, etc. Among them, metering PT has the highest accuracy requirement of 0.2 level; Among them, it is level 0.5; the switching operation power supply class PT has the lowest requirement, which is level 1.5. Due to its characteristics of blocking traffic and direct current, the online PT directly shorts the test DC voltage to the ground, so that the DC instrument cannot be boosted normally for testing. The current method is to disconnect the PT before testing, and then try to send the DC voltage. Not only is the work cumbersome, but the efficiency is extremely low, and it also affects the power consumption on the user side. Therefore, it is urgent to study a PT intelligent blocking device and method for power lines to ensure that there is no need to artificially disconnect the PT during AC / DC detection. Without affecting the normal operation of the line

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
  • An intelligent blocking device and method for power lines
  • An intelligent blocking device and method for power lines
  • An intelligent blocking device and method for power lines

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0051] Example: such as Figure 1-17 As shown, a blocker for power lines is characterized in that: the blocker includes a blocker body, and a capacitive element is arranged in the blocker body, and the capacitance value of the capacitive element is also Different, so the capacitance value of the blocker is also different. The blocker is suitable for metering type PT, measurement type PT and switch operation power supply type PT. The precision value is 0.5, and the precision value required by the power supply PT is 1.5. According to the precision value and actual test, when it is suitable for the metering PT, the capacitance value of the blocker connected in series is 0.63uF~0.72 uF, when it is suitable for measuring PT, the capacitance value of the blocker connected in series should be 0.25uF~0.50uF, and when it is suitable for power type PT, the capacitance value of the blocker connected in series should be 0.08uF~0.25uF;

[0052] The blocker can be used alone or integrated ...

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 PT intelligent blocking device and method for power lines, which belongs to the technical field of blockers, and includes an internal integrated body, a high-voltage relay, and an intelligent control module. The intelligent control module is internally provided with an intelligent control circuit. The intelligent control circuit is composed of a single-chip microcomputer and a high-voltage relay control circuit. The present invention is scientific and reasonable, and is safe and convenient to use. According to theoretical calculations and actual tests, the accuracy values ​​of metering PTs, measurement PTs and power supply PTs are different. The capacitance value of the connected blocker is also different. Therefore, at least three blockers with different capacitance values ​​are required to meet the demand. The PT intelligent blocking device can control the working status of 5 high-voltage relays through a single-chip microcomputer according to different situations. To achieve the required capacitance value, there is no need to produce blockers with different capacitance values ​​according to different situations, so as to ensure that there is no need to artificially disconnect the PT during AC / DC detection, and it will not affect the normal operation of the line.

Description

technical field [0001] The invention relates to the technical field of blockers, in particular to a PT intelligent blocking device and method for power lines. Background technique [0002] Voltage transformer (abbreviated as PT) is a very important device on the power line. It is generally divided into metering PT, measurement PT, switching power supply PT, etc. Among them, metering PT has the highest accuracy requirement of 0.2 level; Among them, it is level 0.5; the switching operation power supply class PT has the lowest requirement, which is level 1.5. Due to its characteristics of blocking traffic and direct current, the online PT directly shorts the test DC voltage to the ground, so that the DC instrument cannot be boosted normally for testing. The current method is to disconnect the PT before testing, and then try to send the DC voltage. Not only is the work cumbersome, but the efficiency is extremely low, and it also affects the power consumption on the user side. T...

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): G01R15/18G01R1/20H02H7/22
CPCG01R15/18G01R1/20H02H7/226Y04S10/52
Inventor 刘秀雄赵法强黎玉庭方道奎谭华章黎想王硕黄琨林婧刘雨琪
Owner ZHUHAI LIANDIAN TECH CO LTD
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