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Analisis Deskriptif Inovasi Sistem Relay Proteksi untuk Mencegah Kerusakan EMCP pada Unit Genset di PT PPA Jobsite MIP Triraharjo, Joko; Kurniawan, Fika; Saputra, M. Ferry; Dendang, Adrianto; Nugroho, Edi Setyawan; S, Aryo Adi; L, Bagus Budhi Bowo
COMSERVA : Jurnal Penelitian dan Pengabdian Masyarakat Vol. 5 No. 2 (2025): COMSERVA: Jurnal Penelitian dan Pengabdian Masyarakat
Publisher : Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59141/comserva.v5i2.3186

Disruption of electricity supply is one of the main factors hampering industrial productivity, especially in the mining sector that relies on independent power plants such as generators. PT Putra Perkasa Abadi (PPA) experienced repeated problems related to damage to the Electric Module Control Panel (EMCP) in the Caterpillar 400 KVA generator set due to a sudden surge in current. This study aims to describe the process of implementing an additional protection system in the form of a protection relay and evaluate its effectiveness in preventing EMCP damage. This research uses a descriptive qualitative approach by collecting data through observation, interviews, and studies of the company's internal documentation. The results showed that the protection relay system was able to eliminate the frequency of EMCP damage to zero incidents, reduce downtime from 7 days to 30 minutes, and reduce replacement costs from Rp34,000,000 to Rp100,000 per incident. This innovation also has a positive impact on the aspects of Quality, Cost, Delivery, Safety, and Morale (QCDSM). This study suggests the application of protection relays as a safety system standard in mining industry generators and the need for further studies with a technical-quantitative approach to measure system performance more accurately.

Lifetime-Based Tire Rotation Strategy to Minimize Premature Failure Cost Loss at Critical Position Dump Truck HD785-7 Saputra, M. Ferry; Fajrin, Laode Nuzul; Kusnandar, Kusnandar; Arrosyid, M. Jailani; Kurniawan, Fika
Journal of Social Research Vol. 4 No. 10 (2025): Journal of Social Research
Publisher : International Journal Labs

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55324/josr.v4i10.2843

The coal mining industry faces significant challenges in managing operational costs, particularly those related to the maintenance of dump truck tires, which contribute 25–30% of total hauling operational expenses. This study examines a lifetime-based tire rotation strategy to minimize cost losses due to premature tire failures in positions 3 and 4 of HD785-7 dump trucks at the MIP mining site. The research method employs the Quality Control Circle (QCC) approach, consisting of eight systematic steps: problem identification, cause-and-effect analysis, solution determination, improvement implementation, result evaluation, and standardization. The implementation of the strategic tire rotation—by assigning tires with a lifetime of more than 8,000 hours to the 3rd and 4th positions, along with scheduled road patrols and optimized spare tire stock management—was carried out between April and August 2025. The results showed an 87% reduction in the loss cost for the left position (from IDR 291,947,858 to IDR 38,506,461) and a 65% reduction in the total loss cost for 27.00R49 tires (from IDR 404,792,592 to IDR 143,907,833), with the average lifetime progress of positions 3 and 4 increasing to 116% of the target. The scrap ratio changed from 5:3 (left:right) to 8:3, indicating the effectiveness of the rotation strategy in extending tire life at critical positions. This research makes a practical contribution to the mining industry by optimizing tire management through a predictive approach based on lifetime data and a comprehensive understanding of vehicle structural load distribution.

Analisis Deskriptif Inovasi Sistem Relay Proteksi untuk Mencegah Kerusakan EMCP pada Unit Genset di PT PPA Jobsite MIP Triraharjo, Joko; Kurniawan, Fika; Saputra, M. Ferry; Dendang, Adrianto; Nugroho, Edi Setyawan; S, Aryo Adi; L, Bagus Budhi Bowo
COMSERVA : Jurnal Penelitian dan Pengabdian Masyarakat Vol. 5 No. 2 (2025): COMSERVA: Jurnal Penelitian dan Pengabdian Masyarakat
Publisher : Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59141/comserva.v5i2.3186

Disruption of electricity supply is one of the main factors hampering industrial productivity, especially in the mining sector that relies on independent power plants such as generators. PT Putra Perkasa Abadi (PPA) experienced repeated problems related to damage to the Electric Module Control Panel (EMCP) in the Caterpillar 400 KVA generator set due to a sudden surge in current. This study aims to describe the process of implementing an additional protection system in the form of a protection relay and evaluate its effectiveness in preventing EMCP damage. This research uses a descriptive qualitative approach by collecting data through observation, interviews, and studies of the company's internal documentation. The results showed that the protection relay system was able to eliminate the frequency of EMCP damage to zero incidents, reduce downtime from 7 days to 30 minutes, and reduce replacement costs from Rp34,000,000 to Rp100,000 per incident. This innovation also has a positive impact on the aspects of Quality, Cost, Delivery, Safety, and Morale (QCDSM). This study suggests the application of protection relays as a safety system standard in mining industry generators and the need for further studies with a technical-quantitative approach to measure system performance more accurately.

Implementation of Pre-Cleaner as An Effort to Preventive Engine Lacks Power Bulldozer D85ess-2 Support Area Rom PT Putra Perkasa Abadi Site Mip Lahat Jatmiko, Fauzi; Hidayat, Panca Nur; Triraharjo, Joko; Kurniawan, Fika; Saputra, M. Ferry
Jurnal Indonesia Sosial Teknologi Vol. 6 No. 1 (2025): Jurnal Indonesia Sosial Teknologi
Publisher : Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59141/jist.v6i1.8919

Bulldozer D85ESS-2 operating in the ROM Support Area of PT Putra Perkasa Abadi Site MIP Lahat often experiences engine lacks power problem, which disrupts productivity and increases maintenance costs. This problem is generally caused by air contamination entering the engine system, resulting in decreased combustion efficiency and component damage. This study aims to analyse the effectiveness of pre-cleaner implementation as a preventive measure in overcoming this problem. The method used was a quantitative approach with the collection and analysis of operational data from the D85ESS-2 bulldozer before and after the installation of the pre-cleaner. The data analysed included the frequency of occurrence of the engine lacks power problem, downtime duration, and fuel usage. The results showed that the implementation of a pre-cleaner on the D85ESS-2 bulldozer at PT Putra Perkasa Abadi successfully resolved the problem of engine lacks power by reducing the accumulation of coal dust in the air cleaner. The test results show significant improvements in engine performance, with most parameters meeting the set standards. Thus, the use of a pre-cleaner improves combustion efficiency, reduces maintenance costs, and extends engine life.

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