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Intelligent oil level indicating device

A technology for indicating devices and oil levels, applied to circuit devices, displaying liquid level indicators through pressure measurement, electrical components, etc., can solve the problems of no real-time monitoring and remote online monitoring, accelerating the deterioration of insulating oil, and reducing the life of transformers, etc. , to achieve real-time monitoring, remote online monitoring, intuitive and accurate oil level display, and intuitive oil level display

Inactive Publication Date: 2013-09-25
STATE GRID CORP OF CHINA +1
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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.

Method used

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Embodiment Construction

[0019] Such as figure 1 and figure 2 Shown: the intelligent oil level indicating device, including the existing oil conservator, capsule, oil level gauge and oil conservator filling and discharging pipe; also includes the liquid level gauge 5 and the liquid level indicator 6; the liquid level gauge 5 includes the diffused silicon pressure sensor 501 and IC Sensors circuit 502, the diffused silicon pressure sensor and IC Sensors circuit are finished products purchased from commercial channels, the oil conservator filling and discharging pipe 4 is connected to the diffused silicon pressure sensor 501 through the flange 8, and the diffused silicon pressure sensor 501 is connected to the sensor cable 503 It is connected with the IC Sensors circuit 502 , and the IC Sensors circuit 502 is connected with the liquid level indicator 6 through the output terminal 9 . The liquid level gauge 5 and the liquid level indicator 6 are easy to install and can be installed on the transformer b...

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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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F27/14G01F23/14H02J13/00
Inventor 马立明杨德志周静龙王磊屈传宁刘志强刘培民刘佳赵小强王建文李莉周青于涛
Owner STATE GRID CORP OF CHINA
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