Intelligent component for oil-immersed transformer

A technology of oil-immersed transformers and intelligent components, which is applied to program control, instruments, and measuring devices in sequence/logic controllers. high usability effect

Inactive Publication Date: 2013-07-17
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no intelligent component specially used for condition monitoring of oil-immersed transformers

Method used

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  • Intelligent component for oil-immersed transformer

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with accompanying drawing.

[0026] see figure 1 , the intelligent assembly for the oil-immersed transformer of the present invention, the oil-immersed transformer 1 includes a cooling device control mechanism 101, an on-load switch control mechanism 102, a switch controller 103 on each side of the main transformer, a transformer 104 on each side of the main transformer, Oil temperature sensor 105, oil level sensor 106, gas sensor 107, temperature sensor 108, humidity sensor 109, oil drain valve 110, UHF sensor 111, HFCT sensor 112, AE sensor 113, core ground current sensor 114, vibration sensor 115, Casing end screen sensor 116, optical fiber temperature sensor 117, on-load tap changer vibration sensor 118 and on-load tap changer current sensor 119,

[0027] The intelligent component 2 of the present invention includes: cooling device control IED201, OLTC control IED202, non-power protection unit 203...

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PUM

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Abstract

The invention discloses an intelligent component for an oil-immersed transformer. The intelligent component comprises a cooling device control intelligent electronic device (IED), an on-load tap-changer (OLTC) control IED, a non-electric quantity protection unit, a merging unit, a comprehensive measurement IED, an oil chromatography and micro-water monitoring IED, a local discharge monitoring IED, an iron core grounding current monitoring IED, an acoustic fingerprint monitoring IED, a transformer bushing insulation monitoring IED, a winding temperature monitoring IED, an OLTC monitoring IED, a first communication network, a second communication network and a transformer monitoring master IED. According to the intelligent component, aiming at the particularity of the oil-immersed transformer, comprehensive information acquisition is performed, so that the state of the oil-immersed transformer can be monitored and controlled accurately and quickly.

Description

technical field [0001] The invention relates to an intelligent component for an oil-immersed transformer. Background technique [0002] The definition of an intelligent component is as follows: it is mainly composed of a number of intelligent electronic devices (IEDs), which undertake basic functions such as measurement, control and monitoring of the host device, and each intelligent electronic device undertakes different functions. Smart components are mainly used to monitor and control various power equipment in substations. For example, general transformers can monitor and control their status through existing smart components. However, due to the particularity of oil-immersed transformers, existing smart components can no longer meet the requirements. Oil-immersed transformer refers to the transformer whose iron core and winding are immersed in insulating liquid. Common faults in operation include winding, bushing, tap changer, iron core, oil tank and other accessories....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D21/02G05B19/04
Inventor 张伟王喁斐卢潇妍唐海强陈伟李林戴莉勤孙峻俞瑾华刘兴旺苏少君
Owner STATE GRID CORP OF CHINA
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