Instructor by : Tugino   DESCRIPTION A relay is a device which is operated by a variation in its electrical or physical conditions to effect the operation of other devices in an electric circuit. A protective relay

  Instructor By : Tugino, ST , MT 11 – 13 Agustus 2014, New Saphir Hotel Yogyakarta   DESKRIPSI Salah satu komponen penting dalam sistem tenaga listrik adalah sistem pengaman. Energi listrik dapat