System and method for rapidly detecting transformer fault

Abstract

The invention discloses a system for rapidly detecting a transformer fault. The system comprises a gas guide pipe, a valve, a gas taking device, a precision balance, a thermometer, a barometer and a gravity accelerometer, wherein an upper cavity of transformer oil in a transformer is in fluid communication with a first end of the gas guide pipe; a second end of the gas guide pipe is located at a position outside the transformer and approachable by operating personnel and is provided with the valve. The transformer fault rapidly detecting system also comprises a database, wherein standard density of inner gas in the upper cavity of the transformer oil in the transformer, the determined fault condition of the transformer corresponding to the standard density of the inner gas through a chromatographic detection test, and an overhaul plan adopted by the fault condition are stored in the database. According to the system for rapidly detecting the transformer fault provided by the invention, the detection step of maintenance personnel is saved, the detection efficiency is improved, the maintenance personnel can detect repeatedly every day, and meanwhile, the safety of an electrical power system is improved.

Description

technical field [0001] The invention relates to a system and method for quickly detecting transformer faults. Background technique [0002] In the transformer maintenance work of the power system, the maintenance personnel need to check the changes of the current, voltage and temperature of the transformer, and check the outside of the transformer, listen to whether there is any change in the sound, whether the oil level has dropped, check the explosion-proof tube, bushing, etc. Check if there is no rupture and fuel injection, check whether the pressure release valve is in action, whether the insulation of the DC system is grounded, whether the secondary circuit is faulty, etc. At the same time, check whether there is gas in the gas relay, then identify its color, judge whether it is flammable, and Take gas and oil samples for chromatographic analysis to determine the nature of the transformer fault. A series of work, if you have to check all the detection steps one by one e...

AI Technical Summary

Problems solved by technology

[0002] In the transformer maintenance work of the power system, the maintenance personnel need to check the changes of the current, voltage and temperature of the transformer, and check the outside of the transformer, listen to whether there is any change in the sound, whether the oil level has dropped, check the explosion-proof tube, bushing, etc. Check if there is no rupture and fuel injection, check whether the pressure release valve is in action, whether the insulation of the DC system is grounded, whether the secondary circuit is faulty, etc. At the same time, check whether there is gas in the gas relay, then identify its color, judge whether it is flammable, and Take gas and oil samples for chromatographic analysis to determine the nature of the transformer fault. A series of work, if you have to check all the detection steps one by one every time, it will cost a lot of manpower and material resources, and because the steps are cumbersome, it may not be found in time faults, leading to power system security issues

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