Oil level checking device and method

Abstract

The embodiment of the invention discloses an oil level checking device and method. The oil level checking device comprises a main body, wherein and the top end of the main body is communicated with an oil conservator through an oil discharging pipe of the oil conservator; a plurality of valves mounted at different height positions of the main body; a plurality of pressure sensors which are in one-to-one correspondence with the plurality of valves, wherein the pressure sensors are communicated with the main body through the corresponding valves, the position height of the pressure sensors on the main body is the same as the position height of the corresponding valves, the distances between the pressure sensors are the same, and the pressure sensors are used for collecting the pressure of oil discharged by the oil conservator; and a control module which is electrically connected with the pressure intensity sensors and used for receiving the pressure intensity collected by the pressure intensity sensors and determining the oil level of oil in the oil conservator according to the pressure intensity and the position heights of the pressure intensity sensors and the oil conservator. According to the oil level checking device and method provided by the embodiment of the invention, the reliability of oil level checking can be improved.

Description

technical field [0001] The embodiments of the present invention relate to oil level verification technology, in particular to an oil level verification device and method. Background technique [0002] As a place for converting voltage and current, receiving electric energy and distributing electric energy, the substation is an indispensable part of the power system. In substations such as 110kV ~ 500kV substations, the main transformer mainly adopts an oil-immersed structure, and the insulating oil in the oil conservator is the main insulation and heat dissipation medium of the transformer. In order to ensure the safe and reliable operation of the main transformer, the staff is checking it When replacing the oil level gauge, replenishing oil, and checking and accepting the transformer for operation, etc., the oil level of the main transformer needs to be checked. [0003] At present, the existing oil level calibration devices usually use infrared imaging or connector calibr...

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Problems solved by technology

[0003] At present, the existing oil level calibration devices usually use infrared imaging or connector calibration, but the cost of infrared temperature measurement equipment is high, and due to the influence of the environment and angle, the oil level calibration error is large; for connector calibration Human factors are greatly affected during the working process. Generally, the main transformer is required to be powered off, otherwise it is easy to cause equipment damage, electric shock and falling from heights.

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