Monitoring equipment of intelligent transformer

Abstract

The invention discloses monitoring equipment of an intelligent transformer, comprising an equipment cabinet, a voltage current and bushing insulation measurement improvised explosive device (IED), a basic parameter measurement IED, a cooling device monitoring IED and a power box for IEDs, wherein the equipment cabinet is used for containing equipment and the power box; the voltage current and bushing insulation measurement IED is used for carrying out measurement on effective values of working voltage, load current, bushing tap current, neutral point current, and is in charge of calculation on power factors, dielectric loss, harmonic content, harmonic distortion rate and other electric parameters; the basic parameter measurement IED is used for monitoring light gas and heavy gas, contents of the light gas and heavy gas, a pressure relief valve, tap switch gears, switch oil level, iron core earth current as well as temperature, humidity and other numbers and analog quantity in the equipment cabinet; the cooling device monitoring IED is used for monitoring the status of a cooler, winding temperature, top oil temperature, bottom oil temperature, ambient temperature, humidity and other numbers and analog quantity; and the power box for the IEDs is used for providing + / -5V, + / -12V and + / -24V stabilized voltage supplies for the three IEDs. For the monitoring equipment, the functions are abundant, and a modular design is adopted, thus being simple and easily used; and in addition, the monitoring equipment has strong applicability and good development aspects.

Description

Intelligent Transformer Monitoring Equipment technical field The invention relates to a monitoring device, in particular to a monitoring device with complete monitoring functions, convenient use and modular structure, which can monitor and control the transformer in the power system in real time on-line, and can collect the voltage, current and terminal current of the power transformer. and other waveforms, calculate its effective value, and conduct further signal analysis to obtain parameters such as power factor, dielectric loss, harmonic content, distortion rate, etc. At the same time, it can monitor the main body of the transformer, oil conservator, tap changer, cooling device and other parts An intelligent transformer monitoring device for the working status of the transformer. Background technique In the 60 years since the founding of new China, China's electric power industry has achieved rapid development, with an average annual growth rate of more than 10%. By th...

AI Technical Summary

Problems solved by technology

However, the easing of the tense situation cannot solve many fundamental problems. The level of electricity consumption in our country is still very low.

500kV and higher level ultra-high voltage transmission grids have not yet been formed in most power grids. The security of the grid is poor, the reliability is low, the level of automation is not high, the peak-shaving capacity of the grid is insufficient, the loss is large, and the quality of power supply is poor, which is far from being possible. Adapt to the requirements of the quantity and quality of power supply in the information age of the 21st century

The continuous application of microelectronics and microcontrollers has brought a lot of progress to the measurement and control technology. The traditional detection technology has many disadvantages and cannot meet many current production requirements. Therefore, the online detection technology is the most suitable technology for transformer detection.

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