Transformer real-time monitoring method and system based on multiple ways and means

Abstract

The invention relates to a transformer real-time monitoring method and system based on multiple ways and means, and the system comprises infrared temperature sensors, an infrared signal collection and processing device, ultrasonic sensors, an ultrasonic signal collection and processing device, a signal remote transmission device, an alarm device, an equipment power supply device, and a remote monitoring platform. The infrared temperature sensors are distributed at surrounding observation points of the transformer, and are used for detecting the temperature changes of the observation points. The infrared signal collection and processing device is used for receiving the data of the infrared temperature sensors, and carrying out the processing and judgment of the data. The ultrasonic sensors are distributed at all signal collection points of the transformer, and are used for collecting the internal ultrasonic signals of the transformer. The ultrasonic signal collection and processing device receives the sound signals transmitted by the ultrasonic sensors, and carries out the processing of the signals. The signal remote transmission device enables the data processed by the infrared signal collection and processing device and the ultrasonic signal collection and processing device to be transmitted to the remote monitoring platform. The system is simple and feasible, can carry out the real-time remote monitoring of the transformer well, facilitates the management, and is good in application prospect.

Description

technical field [0001] The invention belongs to the technical field of substation power equipment detection, and relates to a transformer real-time monitoring method and system based on multiple channels and multiple means. Background technique [0002] With the continuous development of economy, society and science and technology, my country's power grid business is also booming, and further provides services for my country's economic and social development. The power transformer occupies a large proportion in the transmission and substation network, and its importance is self-evident. Once the transformer fails suddenly and cannot be used, not only the economic loss is huge, but also the people's production and life caused by the shutdown and power outage The inconvenience will cause a social loss that cannot be underestimated. On the contrary, if the precursors of serious failures can be detected in advance and planned maintenance and repair measures are taken, the possi...

AI Technical Summary

Problems solved by technology

Practice has shown that the main fatal faults of transformers, such as partial discharge, overheating, etc., can be detected by different technical methods to varying degrees, but the current inspection methods have their own advantages and limitations

[0003] At present, substations below 500KV are unattended. The high-voltage equipment in the substation switchyard often discharges due to insulation aging, contamination, weather and other reasons. The discharge with short cycle and large energy is usually caused by serious damage to the equipment, resulting in Precursor of tripping and short circuit accidents

The current main measures to determine such defects are regular pre-test inspections and inspections, but they can only prevent and discover gradual defects, and cannot detect rapidly developing insulation defects in time

The latest on-line monitoring devices for partial discharge are complicated to install, difficult to maintain, and expensive, making it difficult to widely promote them in various types of substations.

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