System and method for positioning power distribution network terminal failures

Abstract

A system for positioning power distribution network terminal failures comprises a primary transformer, secondary transformers subordinate to the primary transformer, a data acquisition unit, a data processing unit, a central information processing unit and a wireless communication unit. A method for positioning the power distribution network terminal failures includes the specific steps: 1) acquiring voltage and current values of the primary transformer; 2) judging whether fluctuations of the acquired voltage and current values exceed preset threshold values or not; 3) sending alarm information of the primary transformer to a monitoring center computer, wherein the alarm information comprises a physical address of the primary transformer; and 4) positioning failure positions of the secondary transformers subordinate to the primary transformer and branches, and sending the failure positions to the monitoring center computer. Operation states of power distribution network terminals can be monitored timely and effectively and sent to a monitoring center in real time, and thereby the system and the method can be widely applied to increasingly complex power distribution networks to shorten failure time and reduce economic losses caused by the failures.

Description

technical field [0001] The invention relates to the field of electric power, in particular to a system and method for transformer fault location. Background technique [0002] With the rapid development of the national economy, the distribution network terminals have become more and more complex, extending to almost every corner of the distribution network. Distribution network terminals have different conditions, and direct contact with users has a relatively high probability of failure, and the fault cannot be found in time after a failure occurs, resulting in more significant economic losses and adverse effects. Therefore, it is of great significance to realize the online monitoring and fault location of distribution network terminals. [0003] At present, the domestic network has also done some research on distribution network fault monitoring and positioning, and also proposed corresponding methods and developed corresponding devices, such as the "distribution network ...

AI Technical Summary

Problems solved by technology

Although the above two devices and systems can realize the fault detection of the distribution network, they cannot uniformly manage each distribution terminal of the distribution network in real time and intuitively, especially in the case of increasingly complex distribution network terminals, the number of IP addresses Unable to mark every terminal, such devices cannot achieve their intended goals

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