Open AccessPENGARUH PEMBEBANAN TERHADAP NILAI RESISTANSI PENTANAHAN TRANSFORMATOR 250 KVA PADA GARDU BA 0005 PT. PLN (PERSERO) UP3 BENGKULU ULP TELUK SEGARA
Author(s) -
Dian Eka Putra,
Iswadi Idris
Publication year - 2021
Publication title -
jurnal surya energy
Language(s) - English
Resource type - Journals
eISSN - 2615-871X
pISSN - 2528-7400
DOI - 10.32502/jse.v5i1.2767
Subject(s) - ground , transformer , electrical engineering , distribution transformer , engineering , voltage , delta wye transformer
A distribution transformer as an electromagnetic device that converts and transfers electrical energy to the primary and secondary electrical distribution networks, is directly related to the ever changing load center. As a result of high loading and unbalance will cause an increase in neutral induced currents, of course, to anticipate changes in load that cause neutral phase currents in distribution transformers required grounding resistance values or low grounding in the neutral phase.The resistance value or grounding resistance according to the General Electrical Installation Requirements (PUIL) 2000 and SPLN3-1978 Regarding PLN Low Voltage Network Grounding and Installation Grounding does not exceed 5 ? or a maximum of 5 ?. The calculation results obtained the value of the grounding resistance in the neutral phase and the transformer body 250 KVA BA 0005 Distribution Substation, namely 4.11 ?. From these results it is necessary to have a comparative study of the resistance value from the calculation results with the value of the direct measurement results in the neutral phase grounding system and the 250 KVA transformer body BA 0005 Distribution Substation. From the results of direct measurements between 14.00 to 15.00 WIB with 50 percent loading on The transformer has the largest value of resistance in the neutral phase of 8.1 ? and on the transformer body of 8.3 ?. Keywords: 250 KVA Transformer, Grounding Resistance, Neutral Phase, Body Transformer