On-line monitoring device for power distribution transformer performance and monitoring method thereof

Abstract

The invention discloses an on-line monitoring device for power distribution transformer performance and a monitoring method thereof. The monitoring device comprises transformer monitoring units and a data management unit which are in communication with each other, and the data management unit is used to predict transformer health conditions through statistics analyses according to monitoring data obtained by the transformer monitoring units; and each transformer monitoring unit comprises an embedded microprocessor circuit, multiple paths of signal conditioning circuits, a dial switch circuit, a keyboard circuit, a power supply circuit, a clock circuit, a liquid crystal display circuit, multiple paths of control output circuits, a communication interface circuit and an SD card storage circuit, and the multiple paths of the signal conditioning circuits, the dial switch circuit, the keyboard circuit, the power supply circuit, the clock circuit, the liquid crystal display circuit, the multiple paths of the control output circuits, the communication interface circuit and the SD card storage circuit are connected with the corresponding embedded microprocessor circuit. The monitoring device and the monitoring method are advantageous in that, through utilization of sensors, respectively connected with the multiple paths of the signal conditioning circuits, for monitoring data acquisition, a monitoring scope can be greatly extended; and real-time on-line monitoring for the transformer performance is achieved, comprehensive judgments of the transformer health conditions are achieved through combinations with the transformer monitoring data, and then safe operation of transformers can beensured.

Description

technical field [0001] The invention relates to a monitoring device, in particular to an on-line monitoring device for distribution transformer performance and a monitoring method thereof, belonging to the technical field of transformer safety operation monitoring. Background technique [0002] The distribution transformer is an important power equipment in the distribution network. Its operating data is the basis and important data of the distribution network. The distribution transformer monitoring terminal is an important part of the distribution automation system. The analog and state quantities are collected in the system. And perform functions such as remote control operation, realize the functions of remote measurement, remote signaling, and remote control of distribution transformers, and can ensure the reliable operation of the distribution system. [0003] At present, the monitoring range of the distribution transformer monitoring terminal is still small, the real-...

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Problems solved by technology

[0003] At present, the monitoring range of the distribution transformer monitoring terminal is still small, the real-time performance of monitoring is still poor, and the defects of low monitoring effect are common; for this reason, it is necessary to design an online monitoring device for distribution transformer performance to realize real-time online monitoring , so as to detect transformer faults early

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