Power transformer running state real-time monitoring method based on power consumption detection

Abstract

The invention discloses a power transformer running state real-time monitoring method based on power consumption detection, and belongs to the technical field of power transformer safety running. The method of the invention is characterized by comprising a monitoring system and including a step 1001 of obtaining current and voltage signals of a power transformer; a step 1002 of obtaining input end active power and output end output power; a step 1003 of obtaining a normal power consumption value; a step 1004 of obtaining a power deviation percentage; a step 1005 of executing a step 1006 if being in a serious state, and executing a step 1007 otherwise; the step 1006 of sending out a tripping command; the step 1007 of executing a step 1009 if being in an abnormal state, and executing a step 1008 otherwise; the step 1008 of executing the step 1009 if running in a critical state, and executing a step 1010 otherwise; the step 1009 of sending out an alarm signal; and the step 1010 of continuing running. The power transformer can be evaluated in the actual running, and the reliability is substantially improved.

Description

technical field [0001] The invention discloses a real-time monitoring method for power transformer operation state based on power loss detection, belonging to the technical field of power transformer safe operation. Background technique [0002] The power transformer is the main equipment running in the power system. It is used in the power system to practice the power grid, transform the voltage, transmit and distribute electric energy and other functions. The power transformer itself needs to produce active power loss and reactive power loss during the working process. The active power and reactive power loss of the power transformer are related to the technical characteristics of the transformer, and produce nonlinear changes with the change of the load; the power transformer The active power consumed is mainly manifested in the form of heat, and the higher the consumed power, the higher the operating temperature of the power transformer. [0003] Good electrical insulat...

AI Technical Summary

Problems solved by technology

Since it is necessary to measure the corresponding parameters after the power is cut off, it will have a certain impact on the working state of the power system. More importantly, the power transformer cannot truly reflect its operating state after the power is cut off. Many parameters and actual operation will exist. Therefore, the reliability of the measurement results is greatly reduced, and even some defects that are not easy to be found during operation will be covered up, which will become a greater hidden danger of accidents.

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