Studi Penempatan Transformator Distribusi Berdasarkan Jatuh Tegangan Pada PT. PLN (Persero) Rayon Medan Kota

Abstract

Distribution system is a system that transmits electricity from generating electrical energy to consumers in mid-scale voltage to low voltage. Where in the distribution of electrical energy required a considerable distance from the GI (sub station) to reach the consumers or customers, coupled with the required current distribution is quite large, so there is a fairly large voltage regulation along the lines until towards the consumer. In fact, there are distribution transformers that were located quite far from the GI (sub station) that resulted in falling voltage (voltage drop) which arrive at the distribution transformer primary side more than the allowable. Therefore necessary rearrangement in terms of long-channel distribution system by regulating the placement of the transformer primary distribution transformer performance for the better. In this final method used is to analyze and calculate the percentage of drop voltage on a feeder, adjusted for the calculation of the allowable voltage drop of PLN. And the analysis results obtained by the calculation of 5 (five), a large percentage of distribution transformer voltage falls on the primary side more than 5%. Namely substation at 6.63% MK 247, MK 290 Relay at 6.93%, Substation at 7.02% MK 282, MK 262 Relay at 8.93%, and 272 MK Sentry at 8.96%. So to get a voltage and a small fall in accordance with the allowable foreign policy, required an appropriate distance in the placement of the distribution transformer.