AUDIT ENERGI PADA SISTEM TRANSFORMATOR DAN LVMDP UNTUK OPTIMASI EFISIENSI ENERGI DAN KONSERVASI DI PT. TRIKARYA UTAMA CENDANA

SIMANJUNTAK, SUGANDA P (2025) AUDIT ENERGI PADA SISTEM TRANSFORMATOR DAN LVMDP UNTUK OPTIMASI EFISIENSI ENERGI DAN KONSERVASI DI PT. TRIKARYA UTAMA CENDANA. S2 thesis, Universitas Kristen Indonesia.

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Abstract

Transformator dan Low Voltage Main Distribution Panel (LVMDP) merupakan komponen vital dalam sistem distribusi listrik industri. Namun, kerugian daya (losses) akibat ketidakseimbangan beban dan kurangnya sistem monitoring efisien masih menjadi tantangan utama. PT. Trikarya Utama Cendana menghadapi masalah ini, yang berdampak pada peningkatan biaya operasional dan inefisiensi energi. Penelitian ini bertujuan untuk mengevaluasi efisiensi energi dan mengidentifikasi potensi konservasi energi melalui audit sistem transformator dan Low Voltage Main Distribution Panel (LVMDP) di PT. Trikarya Utama Cendana. Rumusan masalah meliputi analisis tingkat efisiensi sistem kelistrikan, identifikasi potensi losses dan penyebabnya, serta strategi optimasi yang dapat diterapkan. Audit dilakukan dengan pengumpulan data primer dari pengukuran lapangan serta data sekunder dari dokumen operasional perusahaan. Hasil audit menunjukkan bahwa konsumsi energi aktual secara konsisten melebihi target efisiensi yang ditetapkan, dengan nilai pencapaian kinerja energi (EnPI) selalu di atas 100%. Analisis regresi menghasilkan nilai R² sebesar 0,90 yang menunjukkan bahwa variabel operasional memiliki kontribusi besar terhadap konsumsi energi, meskipun model belum signifikan secara statistik akibat keterbatasan jumlah data. Pengukuran pada panel LVMDP menunjukkan adanya ketidakseimbangan beban antar fasa, arus netral tinggi, serta harmonisa arus (THD) yang melebihi standar, berpotensi menyebabkan kerugian daya dan penurunan efisiensi sistem. Sebagai solusi, disarankan penerapan strategi efisiensi seperti penyeimbangan beban, pemantauan energi secara real-time, dan penggunaan filter harmonik aktif untuk mengurangi distorsi arus. Selain itu, penggantian transformator dan peralatan distribusi dengan perangkat berstandar efisiensi tinggi dapat dipertimbangkan. Keseluruhan temuan ini mendukung perlunya peningkatan manajemen energi dan konservasi yang berkelanjutan demi operasional yang lebih efisien di PT. Trikarya Utama Cendana. Kata kunci: Audit energi, transformator, LVMDP, efisiensi energi, harmonisa, konservasi energi, filter harmonik. / Transformers and Low Voltage Main Distribution Panels (LVMDPs) are vital components in industrial electrical distribution systems. However, power losses due to load imbalance and the lack of efficient monitoring systems remain major challenges. PT. Trikarya Utama Cendana faces these issues, resulting in increased operational costs and energy inefficiency. This study aims to evaluate energy efficiency and identify potential energy conservation opportunities through an audit of the transformer and LVMDP systems at PT. Trikarya Utama Cendana. The research questions include analyzing the efficiency level of the electrical system, identifying potential losses and their causes, and determining applicable optimization strategies. The audit was conducted using primary data from field measurements and secondary data from the company’s operational documents. The results show that actual energy consumption consistently exceeded the established efficiency targets, with Energy Performance Indicator (EnPI) values always above 100%. Regression analysis yielded an R² value of 0.90, indicating that operational variables have a significant impact on energy consumption, although the model was not statistically significant due to limited data. Measurements on the LVMDP panel revealed load imbalance across phases, high neutral currents, and current harmonics (THD) exceeding the standard, all of which contribute to power losses and reduced system efficiency. As solutions, the study recommends implementing efficiency strategies such as load balancing, real-time energy monitoring, and the use of active harmonic filters to reduce current distortion. In addition, replacing transformers and distribution equipment with high-efficiency standard devices may be considered. These findings highlight the need for improved energy management and sustainable conservation efforts to support more efficient operations at PT. Trikarya Utama Cendana. Keywords: Energy audit, transformer, LVMDP, energy efficiency, harmonics, energy conservation, harmonic filter.

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