光纤差动保护的导引线接口装置  

Pilot wires interface of fiber-channel's current differential protection

作　　者：王芊[1] 刘国伟[1] 

机构地区：[1]南京南瑞继保电气有限公司,江苏南京211102

出　　处：《电力系统保护与控制》2009年第12期86-88,共3页Power System Protection and Control

摘　　要：随着光纤电流差动保护的广泛应用,其保护原理、功能也更加完善。作为第一代电流差动保护的传输通道——导引线也彻底被光纤所替代。但在少数地区,由于铺设光缆难度太大,仍在继续使用导引线。如何能使光纤差动保护装置运行在导引线传输通道上,既不改变保护装置的功能,也不需重新铺设光缆,便因此提了出来。针对这一特殊要求,开发了光纤差动保护的导引线接口装置。使用该接口装置后,光纤差动保护不需作任何改动,就可以在导引线通道上运行,且保护的动作特性不受影响,该接口装置同样适用于光纤纵联保护装置、光纤命令传输装置在导引线上的运行。With the widely use of current differential protection, the function and principle of current differential protection becomes more perfect. Pilot wire which is used as the transmission channel of the primal current differential protection, has been fully substituted by fiber. Only in few area, pilot wire is still used due to the difficulty of construction fiber channls. If current differential protection could run on pilot wires without any changes, then no need to construct fiber chaimels. This paper designs a pilot interface to fit this need. Using this interface, current differential protection could run on pilot wires without any changes and the performance do not reduce. This interface also can cooperate with fiber tele-protection, fiber command transmission device running on pilot wires.

关 键 词：电流差动 导引线 误码率 

分 类 号：TM773[电气工程—电力系统及自动化]