Intelligent oil level indicating device

Abstract

An intelligent oil level indicating device comprises an oil conservator feeding and discharging oil pipe, a liquid level instrument and a liquid level display instrument. The liquid level instrument comprises a diffused silicon pressure sensor and an ICSensors circuit, the oil conservator feeding and discharging oil pipe is connected with the diffused silicon pressure sensor, the diffused silicon pressure sensor is connected with the ICSensors circuit through a sensing cable, and the ICSensors circuit is connected with the liquid level display instrument through an output terminal. The liquid level display instrument is connected with a background monitoring computer in a wired manner, a remote monitoring effect is achieved, and automation degree is improved. The intelligent oil level indicating device is convenient in field installation, high in automation degree, visual and accurate in oil level display, fine in stability, high in accuracy and reliability and long in service life, can be used for oil level check and maintenance for a 220KV-750KV transformer and an electric reactor, is more applicable to an unattended and high-automation transformer substation, and can be used for timely discovering false oil level caused by capsule breakage.

Description

technical field [0001] The invention relates to an intelligent oil level indicating device, in particular to an intelligent oil level indicating device for a transformer of 220 kV or above. Background technique [0002] At present, the capsule type transformer oil conservator used in China still uses the oil standard or pointer type oil level gauge, which has no real-time monitoring and remote online monitoring functions, and cannot timely judge the defects caused by the false oil level of the transformer and the rupture of the skin bag. In the past, the capsule type oil conservator transformers we used often had skin ruptures, resulting in direct contact between the insulating oil and the air, accelerating the deterioration of the insulating oil, affecting the insulation of the transformer, and reducing the life of the transformer. However, the operation and maintenance personnel cannot make timely and correct judgments, causing hidden dangers to safe operation. Contents ...

AI Technical Summary

Problems solved by technology

[0002] At present, the capsule type transformer oil conservator used in China still uses the oil standard or pointer type oil level gauge, which has no real-time monitoring and remote online monitoring functions, and cannot timely judge the defects caused by the false oil level of the transformer and the rupture of the skin bag.

In the past, the capsule type oil conservator transformers we used often had skin ruptures, resulting in direct contact between the insulating oil and the air, accelerating the deterioration of the insulating oil, affecting the insulation of the transformer, and reducing the life of the transformer. However, the operation and maintenance personnel cannot make timely and correct judgments, which will cause hidden dangers to safe operation.

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