Transformer oil level measuring device

Abstract

The invention discloses a transformer oil level measuring device, which is characterized in that a mounting base is fixedly mounted at the bottom of a transformer oil tank, an ultrasonic probe and a leveling mechanism are mounted on the mounting base jointly in a matched manner, the leveling mechanism adjusts the mounting angle of the ultrasonic probe, and the ultrasonic probe detects the oil level in the transformer oil tank, an electronic display screen and a control unit are further installed on the mounting base, the ultrasonic probe is in signal connection with the control unit, and the control unit is used for recording the time when the ultrasonic probe transmits ultrasonic signals to the transformer oil tank and the time when the ultrasonic signals are reflected to the ultrasonic probe and calculating the oil liquid height, the control unit is in data connection with the electronic display screen and used for displaying the detected oil liquid height. The transformer oil level measuring device can efficiently perform disassembly and assembly work, improves the accuracy of oil level height detection, realizes remote monitoring of the oil level in each transformer oil tank, and improves the safety, reliability and sensitivity of products.

Description

technical field [0001] The invention relates to the technical field of transformer supporting equipment, in particular to a transformer oil level measuring device. Background technique [0002] The insulating oil inside the transformer has a much higher dielectric strength than air, has a good cooling effect, is a good arc-extinguishing medium, and at the same time plays a role in maintenance and anti-corrosion of insulating materials. It can be seen that insulating oil is very important for distribution transformers. [0003] Oil level is one of the important monitoring parameters of power transformers. It is of great significance to timely find out that the oil level is too low or too high and take corresponding measures to ensure the safe operation of power transformers. When the oil level is too high, it may cause the internal oil pressure of the transformer to increase, and also cause oil overflow. When the oil level is too low, the oil level will be further reduced w...

AI Technical Summary

Problems solved by technology

However, the traditional measurement method based on the oil level gauge is not only inconvenient for digital acquisition, but also can cause inaccurate measurement due to blockage and other reasons.

[0004] There are various technical problems in the existing transformer oil level detection technology: (1) capacitive type: easy to be affected by pollution and produce errors; (2) resistive type: mechanical measurement, with large errors and hysteresis, and the sensor has long-term contact with the oil Contact, easy to be corroded, polluted, affecting measurement accuracy, and the fuel tank must be drilled during installation; (3) Flowmeter type: need to cut off the oil pipe, can not measure the amount of fuel, intelligent measurement of usage, inconvenient metering management; (4) Float Type: It can only be used for fuzzy indication of oil volume, not for oil volume measurement, the degree of oil pollution of film resistors, power supply voltage, mechanical structure, lubricity and other product reasons have a great impact on the long-term stability of the output value

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