High-and Extra-High-Voltage Substation Design and Economic Comparisons

Analytical techniques for comparing high-and extra-high-voltage substation schemes for 161 kv, 230 kv, 345 kv, and 500 kv are evaluated, not only between voltages, but also between a series of layouts at any given voltage. Detailed cost data voltages are listed. Analyses showing the effects on costs of varying one or several en gineering parameters provide additional guides for such substation comparisons.