Unlock instant, AI-driven research and patent intelligence for your innovation.

Test method for internal temperature field of power switch cabinet

A technology for internal temperature and power switches, applied in thermometers, thermometers using directly heat-sensitive electric/magnetic elements, and parts of thermometers, can solve problems such as high research costs and incomplete measurement data, and achieve simple operation , Strong anti-interference ability, stable measurement effect

Active Publication Date: 2020-06-02
ANHUI UNIVERSITY OF TECHNOLOGY
View PDF9 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the problems of high cost and incomplete measurement data of the temperature field distribution of the power switchgear under different factors in the prior art, and to provide a test method for the internal temperature field of the power switchgear, which is helpful for comprehensive Effectively measure the internal temperature field distribution of the power switch cabinet under different factors in the power switch cabinet, and can also provide an optimal design idea for heat dissipation for the development of the power switch cabinet

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
  • Test method for internal temperature field of power switch cabinet
  • Test method for internal temperature field of power switch cabinet
  • Test method for internal temperature field of power switch cabinet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] A test method for testing the internal temperature field of a power switch cabinet in this embodiment is specifically carried out by using the temperature field comprehensive testing device of this embodiment, such as Figure 1-Figure 7 As shown, the temperature field comprehensive test device includes a cabinet surrounded by panels that are movable around, wherein the cabinet is specifically composed of a lower panel 210, a front panel 211, a left panel 212, an upper panel 213, a rear panel 214 and a right panel 215. It consists of six insulating panels, and each panel is prefabricated with different sizes and specifications, so that the size of the cabinet can be adjusted and changed; there are multiple rows of busbars 230 connected to each other insulated and connected in the cabinet, specifically busbar copper bars, and each row of busbars 230 SMD thermocouple bundles 231 are arranged along the length direction, and multiple rows of busbars 230 are distributed in par...

Embodiment 2

[0111] A test method for testing the internal temperature field of a power switch cabinet in this embodiment is basically the same as in embodiment 1. Specifically, in this embodiment, according to the distribution of the temperature field in the power switch cabinet under different current conditions, the distribution law of the power switch cabinet is obtained. And convective heat transfer coefficient and radiation heat transfer coefficient table.

Embodiment 3

[0113] A test method for testing the internal temperature field of a power switch cabinet in this embodiment is basically the same as in Embodiment 1. Further, in this embodiment, different numbers of vents on the six side panels are blocked to explore the effect of the number and position of the vents on the power switch. The temperature field in the cabinet is affected, and the corresponding convective heat transfer coefficient and radiation heat transfer coefficient table are obtained, which is convenient for providing a ventilating scheme with good heat dissipation for the power switch cabinet.

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 test method for an internal temperature field of a power switch cabinet, and belongs to the field of power temperature detection. The method comprises the following steps ofS1, selecting a panel; S2, mounting a left panel and a right panel; S3, installing a bus in a cabinet body; S4, mounting a patch type thermocouple bundle on the surface of the bus, and mounting a meshthermocouple unit in the cabinet body; S5, installing the front and rear panels; S6, placing a temperature controller and an electric heating plate outside the cabinet body, and arranging the temperature sensors between the panels; S7, connecting the patch type thermocouple bundle and the net-shaped thermocouple unit to a computer; and S8, calculating to obtain a convective heat transfer coefficient and radiation heat transfer coefficient table by utilizing the temperature data detected under the variable condition. According to the invention, the defects of high temperature field distribution research cost and incomplete measurement data of the power switch cabinet under different factors in the prior art are overcome, the measurement of internal temperature field distribution in the power switch cabinet under different factor conditions is facilitated, and reference opinions are provided for the later design and researchers.

Description

technical field [0001] The invention relates to the technical field of temperature detection in the electric power industry, and more specifically relates to a test method for testing the temperature field inside a power switch cabinet. Background technique [0002] The power switchgear is the basic component of the power system. It is mainly composed of isolating switches, fuses, circuit breakers and busbars. Its function is to transmit and distribute current. Its safe and stable operation is the key to ensuring the safety of electricity consumption and continuous and stable transmission. , due to the existence of the busbar resistance, the busbar generates heat. At the same time, the busbar transmits the heat to the power switch cabinet through convection and radiation, and then the power switch cabinet body transmits it to the external environment. However, if the heat generated by the busbar cannot be discharged in time, it will It will seriously damage the service life ...

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): G01K3/14G01K7/02G01K1/14
CPCG01K3/14G01K7/02G01K1/14
Inventor 陆彪汤凯王索军王俊杰刘莹惠陈德敏张雨姜苏王腾腾
Owner ANHUI UNIVERSITY OF TECHNOLOGY