变压器消防控制回路异常的分析与处理

Analysis and Processing on Abnormal Phenomena of Control Circuit of Fire-fighting Facilities for Transformer

摘要:

变压器是发电厂和变电站中的主要配电设备，其价格昂贵，带电故障引起燃烧或爆炸时，不仅设备损失巨大，而且可能引起人身或电网事故，大型变压器按要求都要配置相应的消防设施。文章以某一实际变电站为例，阐述了该变电站变压器消防设施的选型、原理、试验方法和该设施投运时的具体情况。对某一次变压器的停送电操作中发现的消防控制回路异常问题进行了分析、对回路进行了测试，最终找出问题所在，处理该问题后，控制回路恢复正常，避免了一起可能的消防设施误喷事件。文章最后提出了对此类消防设施的一些使用、操作和管理建议，可以为运行值班人员对此类消防设施的运行操作提供一定参考。

Abstract:

Transformer is an important part of power system with high prices, which may cause a hug loss of both equipment and life or power grid due to the burning and explosion damage, so large transformers are required to be equipped with the corresponding fire-fighting facilities. Taking a substation of Hangzhou for example, type selection, principle and testing method of fire fighting facilities for transformer are introduced as well as their specific conditions when being put into operation. According to the abnormal phenomena of control circuit in a practical operation, the control circuit of fire-fighting facilities is analyzed and tested, and finally the reasons of the abnormal phenomena are found out. The control circuit returns to normal with the solution of technical issues, which avoids a misoperation of fire-fighting facilities. Also, the corresponding suggestions are put forward. Analysis and practice for the control circuit provide a reference for the construction and manipulation of fire-fighting facilities.