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Power transformer temperature rise monitoring device and monitoring method

A technology of power transformers and monitoring devices, applied in the field of transformers, can solve problems such as no official reports, and achieve the effects of avoiding device crashes, lowering oil temperature, and accurate data processing capabilities

Inactive Publication Date: 2011-11-30
ANSTEEL GRP MINING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, there is no official report on the power transformer temperature rise monitoring device and monitoring method, as well as the temperature rise comprehensive data analysis system.

Method used

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  • Power transformer temperature rise monitoring device and monitoring method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0020] Such as figure 1 As shown, the single-chip microcomputer 1 is a W77E58 single-chip microcomputer, and the single-chip microcomputer W77E58 is provided with a temperature rise comprehensive data analysis library system, an alarm circuit, and a remote transmission circuit.

[0021] The communication interface circuit 2 is a 12-bit high-precision RS485 communication interface circuit.

[0022] The power transformer oil temperature sensor is an on-site power transformer oil temperature sensor PT100.

[0023] Such as figure 1 As shown, the input voltage of the high-efficiency micro-switching power supply 8 is AC220V, and the output voltage is DC15V, DC5V. The multiplex switch 9 is provided with 6 interfaces.

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Abstract

The invention relates to a power transformer temperature rise monitoring device and monitoring method, comprising a high-strength aluminum alloy shell, a high-speed and stable single-chip microcomputer, an A / D analog-to-digital conversion circuit, a large-capacity switch output, a reference voltage input device, and a communication interface circuit , CPU operation monitoring circuit, large-screen Chinese touch screen interface, high-efficiency micro-switching power supply, multiple selection switch connected with this A / D analog-to-digital conversion circuit, power transformer oil temperature sensor connected with this multiple selection switch. The invention utilizes the fast and accurate data processing capability and reliable communication function of the high-performance single-chip microcomputer to exchange data in real time through the RS485 communication interface circuit and the RS485 interface of the upper computer. The data obtained by real-time communication is compared with the standard curve of the database to determine whether the temperature rise of the transformer is abnormal, and at the same time compared with the stored set value, so as to control the start and stop of the transformer fan. It has the functions of temperature rise comprehensive data analysis, alarm, remote transmission and so on.

Description

technical field [0001] The invention relates to the technical field of transformers, in particular to a power transformer temperature rise monitoring device and monitoring method. Background technique [0002] At present, there is no official report on the temperature rise monitoring device and monitoring method of power transformers and the temperature rise comprehensive data analysis system. Contents of the invention [0003] The purpose of the present invention is to provide a simple and reliable power transformer temperature rise monitoring device. [0004] Another object of the present invention is to provide a monitoring method using a power transformer temperature rise monitoring device. [0005] The purpose of the present invention is achieved through the following technical solutions: [0006] The power transformer temperature rise monitoring device of the present invention comprises a high-strength aluminum alloy casing, a high-speed and stable single-chip micr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/048G01K7/18
Inventor 吕钢
Owner ANSTEEL GRP MINING CO LTD