CKF高频保护误动分析及整改措施

Analysis of CKF carrier relaying maloperation and rectification

对由ＣＫＦ集成电路保护装置与收发信机构成的方向高频保护误动进行了具体的实例分析， 找出了误动的原因是保护装置出口延时太短和收发信机存在收信间断问题。鉴此， 通过提高保护装置的出口延时和提高收发信机的抗干扰能力， 使问题得以解决。

The maloperation of directional high frequency relay composed of CKF integrated circuit protective device and receiving transmitting unit is analyzed with examples.By lengthening the tripping time of the relay and enhancing the anti interference capability of the R T unit,the problem is solved successfully.