This engineering project. With the objective to study and design the system 22/115 kV substation.To power in Kasetsart University sriracha campus. instead of 22 kV power system By considering the value investment, payback period. And the lower electricity bills from the tariff change from the system 22 kV is 115 kV. To guide the decision to continue construction projects on 22/115 kV substation.
Study results showed that. Kasetsart University sriracha campus. The maximum power consumption of the year 2013 is over 2.5 MW/year. Will have to pay for electricity at 34.5 Million bath per year, but when changing from 22 kV electrical system is 115 kV. Will have to pay for electricity at 32.7 Million bath per year Transformers are suitable for all load equal to 17 MVA 115 kV. consists of civil structure, electrical equipment and commissioning. As well as money 37 million bath and Have a payback period of the project is that 10 years.