Blocking (cross block) plus harmonic restraint. – Sel is using two functions at the same time. If the value of the current sense by the relay is more than the set point, the relay generates the tripping command? – If there be a fault during the charging, only the setting of high set elements HS1 and HS2 were there. You can also have our free files and see our training packages at the link below: To join our protection relay WhatsApp or Telegram groups (Click)īy joining our WhatsApp and Telegram groups, you can share your problems with electrical engineers and help out each other.
