Protective Angle and Protective Zone of Ground Wires

Protective Angle and Protective Zone of ground Wires


[caption id="attachment_1193" align="alignnone" width="3552"]Protective Angle and Protective Zone of ground Wires Protective Angle and Protective Zone of ground Wires[/caption]

The protective angle of a ground wire is defined as the “angle between a vertical plane through a ground wire and a slanting plane connecting the ground wire with the other most conductor.


Experience with various line indicates that an angle of (20°) gives satisfactory protection. Some line with shielding angle as high as (45°) is in use. The performance of the lines is rather poor. However, some utilities have adopted (30°) to be the angle of shielding with good results.


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Cascaded Transformer