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Substation Riddle No.5 - Earth mat design
Calulation  and design of Earth mat in  400 kV substations.
Author : soman - From: India
 
#1
Thu, October 4th, 2012 - 12:58
You must know the following information and refer to IEEE 80 or their familiar softwares.
• Length of Area Occupied by Earthing Grid
• Width of Area Occupied by Earthing Grid
• Fault level at Incoming Bus
• Incoming Voltage
• Outgoing Voltage
• Soil Resistivity
• Resistance of Main Earthing Mat
• Resistance of surface Material (Crushed Rock )
• Thickness of Surface Material (Crushed Rock)
• Depth of Earthing Grid Conductor
• Diameter of Earthing Grid Conductor
• Reference Depth of Grid
• Spacing between Parallel Conductor of Grid
 
Author : Hamid - From: Iran
 
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