基于光纤测温的干式电抗器非电量保护设计

Design of Non-electric Protection for the Dry Reactors Based on Optical Fiber Temperature Measurement

干式电抗器运行过程中存在一些特殊的缺陷,其故障特征无法明显反应到电气量上,从而导致干式电抗器电气量保护无法正常动作,严重时会造成干式电抗器过热、自燃。为此,提出了一种基于分布式光纤测温系统的新型干式电抗器非电量保护设计,详细介绍了干式电抗器非电量保护的主要原理、硬件构成、保护逻辑以及出口方式等,阐述了该型干式电抗器非电量保护的技术特点及应用前景。

There are some special defects in dry-type reactors that can not be clearly reflected in the electric quantity,resulting in the failure operation of electric protection of dry reactors,which would cause overheating and spontaneous combustion of dry reactors in serious cases.In view of this situation,a new non-electric protection design dry reactors based on a distributed optical fiber temperature measurement system is proposed.The main principle,hardware composition,protection logic and outgoing mode of non-electric protection for dry reactors,etc.are introduced in detail.The technical characteristics and broad application prospect of non-electric protection of such a type of dry reactors are described.