Notes on PSI is a write up that covers some of the basic points on Traction Substation and Traction Switching Stations. To view the same in PDF format click the link below :
Posted by Anup Mohan on Friday, November 4, 2011,
In :
Design
The earthing system shall consist of a network of buried conductors forming the earth grid, providing the earthing connections to equipment ground terminals, equipment housings and structures. If the calculated Mesh and Step potentials for this earthing system is less than the attainable mesh and step potentials, then the design is considered to optimum one.
The earth grid shall encompass all of the area of the sub-station within the fencing and also shall extend for approximately one meter o... Continue reading ...