Analysis of the Impact of the Development of Hutm Network Expansion in Overcoming Drop Voltage at PLN Binjai
Keywords:
Voltage Drop, HUTM, Distribution Network, Conductor, PLN Binjai.Abstract
This research was carried out in the PLN Binjai area, precisely in the BJ feeder network. 01 Stabat, to analyze the impact of the development of the HUTM (Medium Voltage Air Conduction) network in overcoming the problem of drop voltage. The calculation was carried out using the standard formula of a three-phase system and considered the voltage tolerance limit according to PUIL 2011 and SPLN 72-1987, which is ±5% of the nominal voltage. The measurement results showed that at substation SC 84, the existing voltage dropped to 336.5 V, resulting in a voltage drop of 63.5 V. After analysis of the length of channel 4.95 km with a load current of 214.47 A, the total allowable resistance of 0.2137 Ω was obtained. From the calculations, the minimum cross-section of a copper conductor required to maintain a voltage within the standard limit is about 400 mm², while for aluminum conductors a cross-section of about 650 mm² is required. After the expansion of the new network of 420V using an insert transformer with a power of 50kVA using a cross-section of the distribution network conductor along 4.95 km, and 34 poles as many as 34 rods.
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