Intelligent component for oil-immersed transformer

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....

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