On-load voltage regulation switch remote control gear shifting device of main transformer

Abstract

An on-load voltage regulation switch remote control gear shifting device of a main transformer is characterized by comprising a control box and a gear shifting mechanism. The control box comprises an MCU, a first wireless receiving and sending module, a command input module and a first display screen, the first wireless receiving and sending module, the command input module and the first display screen are respectively connected with the MCU, the gear shifting mechanism comprises a second wireless receiving and sending module, a gear shifting relay, a digital signal processor and an image collecting device, and the second wireless receiving and sending module, the gear shifting relay, the digital signal processor and the image collecting device are connected. The command input module is used for receiving a control signal, the MCU generates a gear shifting command according to the control signal, the gear shifting command is sent to the second wireless receiving and sending module through the first wireless receiving and sending module, and then transmitted to the gear shifting relay, the gear shifting relay controls a normally-opened or normally-closed connector of the relay according to the gear shifting command so as to control tapping point gear shifting of the main transformer, the image collecting device collects image data of a current gear of a voltage dividing connector of the main transformer and transmits the data to the MCU, and the data are displayed through the first display screen. According to the device, labor resources are saved, man-machine work efficiency is improved, and accuracy and safety of the test are improved.

Description

technical field [0001] The invention relates to the technical field of electric power engineering, in particular to a remote control gear adjustment device for an on-load tap changer of a main transformer. Background technique [0002] Generally, the on-load tap changer of the main transformer has multiple gears. For example, some main transformer on-load tap changers have 17 gears to ensure that the voltage can be adjusted by adjusting the gear when the voltage does not meet the system quality requirements. The voltage meets the system requirements, and when the DC resistance test of the main transformer is required, a DC resistance test is required for each of these gears. [0003] In the traditional test technology, after the DC resistance test is completed for a certain gear, it is generally adjusted to the next gear by manually operating the voltage regulating button on the on-load tap changer, and then proceed to the next gear. test. When performing a DC resistance t...

AI Technical Summary

Problems solved by technology

[0005] Based on this, it is necessary to provide a remote control gear adjustment device for the main transformer on-load tap changer to solve the problem of low man-machine work efficiency in the existing testing technology.

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