Winding thermometer copper oil temperature difference simulation test device

A simulation test and thermometer technology, applied in thermometer testing/calibration, thermometers, measuring devices, etc., can solve problems affecting power supply reliability, high cost of testers, and long time consumption, so as to shorten operation time and improve power supply reliability Sexuality and the effect of cost reduction

Inactive Publication Date: 2018-08-03
GUANGDONG POWER GRID CO LTD +1
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the field maintenance experience of the existing winding temperature gauge, when testing the temperature rise characteristics of the winding thermometer by providing a thermal simulation test current on site, it is necessary to short-circuit the secondary side of the transformer winding CT. There is a significant risk that the secondary side

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
  • Winding thermometer copper oil temperature difference simulation test device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0013] Such as figure 1 As shown, the present invention includes a leakage protection module 1, an overload protection module 2, a current boost module 3, a 24V DC power supply output module 4, a winding thermometer detection module 6 and a temperature detection module 5, and the power input terminal of the leakage protection module 1 Connect to a 220V AC input power supply, the input end of the overload protection module 2 is connected to the output end of the leakage protection module 1, the input end of the current boosting module 3 is connected to the output end of the overload protection module 2, and the 24V DC power supply The input end of the output module 4 is connected to the output end of the overload protection module 2, and the 24V DC power supply output module 4 is connected in parallel with the current boosting module 3, wherein:

[0014] The ...

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 winding thermometer copper oil temperature difference simulation test device. The device comprises a leakage protection module, an overload protection module, a current rising module, a 24V direct-current power supply output module, a winding thermometer detection module and a temperature detection module, wherein the power input end of the electric leakage protection module is connected with a 220V alternating-current input power supply; the input end of the overload protection module is connected with the output end of the electric leakage protection module; the input end of the current rising module is connected with the output end of the overload protection module; the input end of the 24V direct-current power supply output module is connected with the outputend of the overload protection module; the winding thermometer detection module is connected to a secondary current output loop of the current rising module. The device has the advantages that the thermal simulation characteristic of a winding thermometer can be tested in advance, the operation risk of the operation and maintenance process is effectively reduced, the power supply reliability is improved, the operation time is greatly shortened, and the cost for re-purchasing new equipment is reduced.

Description

technical field [0001] The invention relates to a copper oil temperature difference simulation test device for a winding thermometer. Background technique [0002] The temperature gauge of the main transformer winding in the substation is the oil temperature on the top layer of the transformer, which causes the corresponding angular displacement of the elastic bellows in the instrument, and superimposes the angular displacement produced by the heating element in the instrument, thus indicating the temperature of the transformer winding. The heating element compensates for the different copper oil temperature differences through the change of the secondary side load of the matching device and the transformer CT. As an important device for monitoring the coil winding temperature during transformer operation, the winding thermometer must ensure its good thermal simulation characteristics, which requires accurate measurement of the thermal simulation characteristics of the windi...

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): G01K15/00
CPCG01K15/005G01K15/007
Inventor 何新辉李焕明袁思成许建明钟伟洪李志文廖浩翔欧凤娴林艳萍何浈桢
Owner GUANGDONG POWER GRID CO LTD
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