Current transformer secondary winding terminals of the first set to be a ground line, indicating the name of the windings, a ground line can not be connected to different windings of the same ground point.
The second winding ground wire of the current transformer should be set of terminal headers, indicating the name of the winding, and the ground wire of different windings shall not be connected to the same ground point.
The grounding wire of the secondary winding of current transformer shall be sleeved with terminal head, indicating the winding name. The grounding wires of different windings shall not be connected at the same ground point.