Monitoring alarm device and method for oil leakage of transformer

Abstract

The invention provides a monitoring alarm device and method for the oil leakage of a transformer, and the device comprises a weight measurement platform, a supporting rod, a control box, and a wireless transmitting antenna. The upper surface of the weight measurement platform is a slope, and the weight measurement platform is made of high-hydrophobicity organic polymer materials with high oil absorbency. The interior of the control box is provided with a power supply module, a weight measurement module, an operational module, and a wireless communication module. The weight measurement module comprises a sensor, an amplification circuit, and an A / D conversion module. The senor is connected with the lower surface of the weight measurement platform through the supporting rod. The output end of the sensor is connected to the operational module through the amplification circuit and the A / D conversion module. The operational module is connected with the wireless communication module. The method comprises the following steps: measuring the weight at a moment T1; measuring the weight at a moment T1+T; calculating the added weight H within the time period T; and judging the condition of oil leakage of the transformer according to the H and a set value h. The device and method are low in cost, are convenient to use, and can be used for accurately judging the condition of oil leakage of the transformer.

Description

technical field [0001] The invention relates to transformer safety monitoring technology, in particular to a transformer oil leakage monitoring and alarming device and method. Background technique [0002] Most high-voltage transformers are oil-immersed transformers, that is, the main box of the transformer is filled with transformer oil. The main function of the transformer is the insulation and heat dissipation of the transformer winding, iron core and other components, which play an important role in the safe and reliable operation of the transformer. Oil leakage from transformers in long-term operation is inevitable, and a small amount of oil leakage generally does not affect the operation of the transformer. In order to ensure continuous and reliable power supply, oil leakage in general transformers will not be treated in a power outage, and inspection and monitoring should be strengthened. When oil leakage develops into oil leakage or even a large amount of oil le...

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Problems solved by technology

The gradual increase of oil leakage may develop into oil leakage. The process of oil leakage from oil leakage to oil leakage is unpredictable, and the development time is also unpredictable. It can be as short as a few minutes or as long as several years. If the monitoring is not timely, it may cause Transformer oil leakage endangers operation safety

[0003] The existing solution is to use manual patrol monitoring, which is labor-intensive and consumes a lot of manpower and material resources. On the other hand, manual patrol monitoring is not timely enough, which may cause transformer oil leakage to be undetected and endanger operation safety.

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