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

Real-time monitoring method and device for voltage transformer

A voltage transformer, real-time monitoring technology, applied in the direction of measuring devices, instruments, measuring electricity, etc., can solve the problem of inability to accurately grasp the dynamic safety and stability of the operating state of the power voltage transformer, low efficiency of manual detection of voltage transformers, and voltage transformers. Insufficient detection of equipment, etc., to achieve the effect of high reliability, reduced intervention, and low hidden dangers of equipment failures

Pending Publication Date: 2021-08-03
STATE GRID CHONGQING ELECTRIC POWER CO ELECTRIC POWER RES INST +2
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the invention of the present invention is to: aim at the above existing problems, provide a real-time monitoring method and device for voltage transformers; the present invention solves the problem of low efficiency and large errors in manual detection of voltage transformers; Incomplete problem; solves the problem of not being able to accurately grasp the dynamic safety and stability of the operating state of the power voltage transformer

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
  • Real-time monitoring method and device for voltage transformer
  • Real-time monitoring method and device for voltage transformer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A method for real-time monitoring of voltage transformers, such as figure 1 shown, including:

[0031] S1: Obtain the monitoring data of the voltage transformer in real time.

[0032] In the above steps, the monitoring data includes the voltage value U at the load end of the voltage transformer, the temperature value T of the environment where the voltage transformer is located, the humidity value H of the environment where the voltage transformer is located, and the magnetic field strength value M of the environment where the voltage transformer is located.

[0033] S2: Calculate the voltage deviation percentage value of the voltage transformer through the data, and normalize the percentage value.

[0034] In the above steps, the voltage deviation percentage value ΔU of the voltage transformer is obtained by the following calculation formula: where U 额 is the rated voltage value of the voltage transformer; the voltage deviation percentage value ΔU of the voltage tr...

Embodiment 2

[0048] A real-time monitoring device for voltage transformers, such as figure 2 As shown, it includes: a control unit 1, a computing module 2, a sensor module 3, a storage module 4, a communication module 5, a positioning module 6, a clock module 7 and a power supply module 8; the computing module 2, the positioning module 6, and the communication module 5 , the positioning module 6, the clock module 7 and the power supply module 8 are respectively connected to the control unit 1, and the sensor module 3 is connected to the calculation module 2; the sensor module 3 will collect various data information of the voltage transformer, and then send the data information to the calculation module 2 , the calculation module 2 will normalize the received data and the preset rated value, and then send the calculated normalized value to the control unit 1, and the control unit 1 calculates the voltage transformer according to the received data Running state value, judge the voltage tran...

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 real-time monitoring method and device for a voltage transformer. The method comprises the steps: acquiring monitoring data of the voltage transformer in real time; obtaining a voltage deviation percentage value of the voltage transformer through data, and carrying out normalization processing on the percentage value; carrying out normalization processing on the temperature value of the environment where the voltage transformer is located through the data; carrying out normalization processing on the humidity value of the environment where the voltage transformer is located through the data; carrying out normalization processing on the magnetic field intensity value of the environment where the voltage transformer is located through the data; the operation state value of the voltage transformer is calculated through the normalized values of the voltage, the temperature, the humidity and the electromagnetic intensity; and whether the running state value exceeds a normal value or not is judged. According to the invention, the monitoring data of the voltage transformer is obtained online in real time and analyzed to obtain the operation state of the voltage transformer, manual field inspection is not needed, and the efficiency is high; and meanwhile, manual intervention is reduced, and the phenomenon that equipment which is normally operated originally breaks down due to human reasons is avoided.

Description

technical field [0001] The invention relates to the field of on-line monitoring of substations, in particular to a method and device for real-time monitoring of voltage transformers. Background technique [0002] Potential Transformer (PT for short) is similar to a transformer and is an instrument used to transform voltage. However, the purpose of transforming the voltage of the transformer is to facilitate the transmission of electric energy, so the capacity is very large, and it is generally calculated in kilovolt-ampere or megavolt-ampere; The power supply of the protection device is used to measure the voltage, power and electric energy of the line, or to protect the valuable equipment, motor and transformer in the line when the line fails. Therefore, the capacity of the voltage transformer is very small, generally only a few volts, Dozens of VA, the maximum is no more than 1000 VA. [0003] In order to ensure the normal operation of the voltage transformer and the rel...

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 Applications(China)
IPC IPC(8): G01R31/00G01D21/02
CPCG01R31/00G01D21/02
Inventor 周峰冯凌舒永生郑可李俊杰肖冀张家铭何珉杜杰王雪松周华勇谭时顺
Owner STATE GRID CHONGQING ELECTRIC POWER CO ELECTRIC POWER RES INST
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