基于布拉格光栅的隔离开关触头在线测温方法测评

摘要:

对基于光纤布拉格光栅的隔离开关触头测温方法的准确性、安全性和实效性进行了测评，证实基于光纤布拉 格光栅的隔离开关触头测温系统具有体积小、结构简单、抗干扰性好以及可用于分布式测量的优势，能有效监测整个 变电站隔离开关触头的温度情况，提高变电站安全水平。但该方法用于隔离开关触头测温缺乏相应标准和应用经 验，并且现行结构对电场分布产生畸变影响等问题，需要在以后的系统中进行完善和改进。

Abstract:

The accuracy，safety and effectiveness of online temperature measurement method for isolating switch contactor based on optical fiber Bragg raster are evaluated． The results show that the proposed online temperature measurement system has the advantages of small size，simple structure and good anti － interference performance，and can be used for the distributed measurement to improve the level of substation security． However，the method lacks the appropriate standards and application experiences for online temperature measurement of isolating switch contactor． Besides，the electric field distortion caused by the existing structure must be refined and improved in the future system．