Remote online monitoring and state evaluating system used for transformer substation

Abstract

The invention discloses a remote online monitoring and state evaluating system used for a transformer substation, and belongs to the technical field of power grid communication. The system comprises a monitoring sub system, a collection sub system, an evaluation sub system and a publishing sub system. A fault filter of the monitoring sub system is used for recording and collecting monitored data; the fault filter transmits and stores the monitored data collected by the fault filter in a storage server of the collection sub system through a communication server; the evaluation sub system extracts the monitored data and performs comparison and analysis with a pre-predicted key data to determine the state of the transformer substation, and then transmits the determined state evaluation result to a working staff of the transformer substation through the publishing sub system, so that onsite construction can be avoided; the equipment state of the transformer substation is determined through remote evaluation, so that the previous manpower multiple-point and aimless inspection way can be eliminated; and the remote online monitoring and state evaluating system has the characteristics of high automatic degree, high efficiency and high response.

Description

technical field [0001] The invention belongs to the technical field of power grid communication, and in particular relates to a remote on-line monitoring and status evaluation system of a substation. Background technique [0002] The substation is the key link of power transmission, and the transformer and circuit breaker are the most important equipment in the substation. If the transformer and circuit breaker fail to be diagnosed and controlled in time and accurately, it will bring huge losses to the power system and national economic production. Loss. [0003] The biggest hazard of the transformer comes from the short-circuit impact current, which has the characteristics of strong concealment, great destructiveness, and high occurrence rate. When the power system fails, due to the inherent operating time of the circuit breaker and related automatic devices, the fault point cannot be removed at zero time. , the transformer will inevitably be impacted by short-circuit curr...

AI Technical Summary

Problems solved by technology

[0006] At present, the maintenance methods for equipment such as transformers and circuit breakers in substations mainly rely on the means of manually going to the equipment site of the substation for preventive tests, regular safety inspections, and equipment maintenance after accidents. Low cost, high cost, lack of reasonable and effective equipment maintenance optimization guidance plan

When the power grid fails, operators are often faced with a dilemma. On the one hand, in order to prevent the expansion of the accident, the fault point should be removed and isolated in time, and on the other hand, the equipment should not be stopped lightly.

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