Berdasarkan pengukuran dan persentase pembebanan trafo yang terjadi serta drop tegangan pada pelanggan ujung di gardu MA 4 dan MA 20P penyulang viona di PT.PLN ( Persero ) Area Teluk Naga di dapat pengukuran dan persentase pembebanan tegangan pelayanan yang tidak sesuai dengan standar ketentuan yang ditetapkan SPLN No 1/1995 dimana tegangan minimum +5 % dan -10% terhadap tegangan nominal pelayanan. Sebelum adanya penambahan gardu sisip gardu MA 4 dan MA 20P mengalami persentasa beban mencapai 80%. Dengan ada pemambahan gardu sisip diharapkan persentase beban over load yang dialami gardu MA 4 dan MA 20P dapat menjadi normal kembali atau bahkan kurang dari 80 %. Setelah adanya penambahan gardu sisip MA 20C tegangan terima pada ujung jariangan menjadi stabil dan persentase beban over load MA 4 dan MA 20P menjadi berkurang. jenis pemasangan gardu sisip menggunakan jenis konstruksi gardu portal pasangan luar.

Based on the measurement and percentage of the transformer loading and voltage drop at the end customer in the substation MA 4 and MA 20P viona repeater in PT.PLN (Persero) Teluk Naga Area in the measurement and percentage of service voltage loading not in accordance with the standard provisions set SPLN No. 1/1995 where the minimum voltage is +5% and -10% to the nominal voltage of service. Prior to the addition of substation substations 4 and MA 20P substation substrates experienced a load percentage of 80%. With the addition of substations, the expected percentage of overload load experienced by substations MA 4 and MA 20P can be normal again or even less than 80%. After the addition of MA 20C substation the received voltage at the tip of the finger becomes stable and the percentage of load over MA 4 and MA 20P becomes reduced. type of installation of the substation of the insert using the type of construction of outdoor partner portal.