the study and design the system 22/115 kV substation..To power in Kasetsart University campus, srirachaInstead of buying 22 kV power supply system By considering the value of the investment payback period and lower electricity bills from electricity rate changed from 22 kV system is 115 kV.instead of buying 22 kV power system.By considering the value of the investment payback period and lower electricity bills from electricity rate changed from 22 kV system is 115 kV.
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