Analysis Of Unequal Grid Spacing In Grounding Grid Design By Two Novel Techniques And Comparison Of Both

*Soni M, Dr. Abraham George

Main objectives of a grounding system are to safeguard the life of the sub-station personnel and to protect the sub-station equipment by providing a low resistance discharge path for fault currents to ground. A low grounding resistance ensures touch, step and mesh voltages within tolerable limits, hence ensuring safety under fault condition. Performance of a grounding grid depends on soil structure and grid configuration. Ground grid can have equally or unequally spaced conductors with or without ground rods. Soil model may be uniform, two layer or multilayer.

Volume 11 | 02-Special Issue

Pages: 78-87