An oil level calibration device and method

Abstract

The embodiment of the invention discloses an oil level calibration device and method. The oil level calibration device comprises: a main body, the top of which is connected to the oil conservator through an oil drain pipe of the oil conservator; a plurality of valves, each valve is installed on the main body different height positions; multiple pressure sensors corresponding to multiple valves one-to-one, the pressure sensor is connected to the main body through the corresponding valve, the position height of the pressure sensor in the main body is the same as the position height of the corresponding valve, and the pressure sensor between the pressure sensors The distance is the same, and the pressure sensor is used to collect the pressure of the oil discharged from the oil conservator; the control module, which is electrically connected to the pressure sensor, is used to receive the pressure collected by the pressure sensor, and according to the pressure and the position and height of each pressure sensor and the oil conservator, Determine the oil level in the oil conservator. The oil level calibration device and method provided by the embodiments of the present invention can improve the reliability of oil level calibration.

Description

technical field [0001] The embodiments of the present invention relate to an oil level calibration technology, and in particular, to an oil level calibration device and method. Background technique [0002] As a place for converting voltage and current, receiving and distributing electrical energy, 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 carrying out When replacing the oil level gauge, replenishing oil, and accepting the transformer in operation, it is necessary to check the oil level of the main transformer. [0003] At present, the existing oil level calibration devices usually use infrared imaging or connector calibration, but the cost of inf...

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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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