Transformer insulating sleeve temperature online monitoring system

Abstract

The invention discloses a transformer insulating sleeve temperature online monitoring system. The end of a transformer insulating sleeve of the system is clamped with a sleeve inserting plate through a sleeve prismatic table. The connecting portion of the transformer insulating sleeve and the sleeve inserting plate is sealed and wrapped by a voltage-sharing cover. A temperature measuring data collecting module and a wireless communication signal transmitting module are fixed into a closed shell which is fixed into the voltage-sharing cover. A temperature sensor is fixed on the sleeve prismatic table and connected with the temperature measuring data collecting module. The temperature measuring data collecting module is connected with the wireless communication signal transmitting module. The wireless communication signal transmitting module is in wireless communicating connection with an antenna receiver through a sending end antenna. The antenna receiver is connected with a remote terminal. The system can accurately monitor the operation temperature of the transformer sleeve in real time.

Description

technical field [0001] The invention relates to the technical field of power transmission and transformation in the electric power industry, in particular to an online monitoring system for the temperature of a transformer insulating bushing. Background technique [0002] With the development of the power system in the direction of ultra-high voltage and large capacity, in order to ensure the safe and stable operation of high-voltage electrical equipment, equipment condition monitoring is particularly important. Equipment temperature is one of the important parameters reflecting the operation status of equipment, so online monitoring of equipment temperature is of great significance. [0003] The transformer bushing is the main insulation device outside the transformer box. Each lead-out wire of the transformer winding must pass through the insulating sleeve. The insulating sleeve insulates each lead-out wire and between the lead-out wire and the transformer shell, and at th...

AI Technical Summary

Problems solved by technology

[0004] Nowadays, for the temperature measurement of the bushing, the main method is infrared online inspection. Since the infrared online inspection is a non-contact temperature measurement, the error is relatively large, and it can only detect the temperature outside the casing, which cannot be detected accurately. The temperature of the oil in the equalizing cover at the joint between the insulating bushing and the bushing insert

In addition, the existing infrared on-line inspection cannot achieve real-time monitoring, and it is easy to cause missed fault reports. Therefore, it is particularly important to develop an online monitoring system that can accurately monitor the temperature status of the running casing in real time.

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