ANALISA KEANDALAN SISTEM DISTRIBUSI 20 kV PADA PENYULANG PT. PLN (PERSERO) ULP TANJUNG MENGGUNAKAN METODE SECTION TECHNIQUE-RIA

Resilience and reliability in distributing electricity is crucial and needs to always be maintained in order to meet consumer needs. Several aspects that indicate the reliability of an electricity distribution system include the continuity of the available energy supply for 24 hours accurately
In evaluating the reliability of distribution networks, several indicators are used. One of them is SAIFI (System Average Interruption Frequency index), which is used as a reliability indicator based on the number of disturbances that occur on average over 12 months.
Then, SAIDI (System Average Interruption Duration Index) becomes an indicator that measures the duration of interruptions experienced by customers during a 12 month period. Meanwhile, CAIDI (Customer Average Interruption Duration Index) is an index that measures the average duration of disruption experienced by consumers over 12 months.
Calculation results using the SECTION TECHNIQUE-RIA method for the SLG 04 feeder, where this index value was obtained using Microsoft Excel software. SAIDI is 0.7 times/customer/year while the SAIFI index value is 1.9 hours/customer/year. Then the CAIDI index value is 1.3. The results obtained through MATLAB are the SAIDI reliability index of 0.9 times/customer/year and SAIFI of 2.0 hours/customer/year, and CAIDI 1.3 hours/customer.