MESSAI.iO

AI summary

75% confidence

Following damage to a 125HP motor driving an LDO pump at PT Kilang Pertamina Internasional Complex II, the unit was upgraded to a 150HP induction motor exceeding original specifications. Efficiency testing based on literature reviews and national/international standards confirmed that the higher-rated motor offers superior performance with lower power losses.

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Literature priors

Distribution

Reported parameters

The author’s reported value (▼) sits on top of the literature distribution from MESS-Parameters. Values outside the band are flagged as outliers.

Coulombic efficiency93.63%

No 3D model is mapped to this paper yet. Parameter ranges above still place reported values on the literature distribution.

Abstract

Induction motors are electrical machines that operate based on electromagnetic principles to convert electrical energy into mechanical energy. In the oil and gas industry, electric motors are widely used for operational processes. This accounts for a large portion of operational costs. At the Fuel Oil Complex II operating unit, the 011P-109B drive motor for the LDO product pump was damaged, so the motor was replaced with one that exceeded the existing specifications, namely from 125HP to 150HP, 111.855 kW, 2 poles, and a frequency of 50 Hz. Research was conducted to test the efficiency of the motor. The method used in this test was a literature review of several publications that comply with national and international standards. Based on efficiency calculations, the 150HP induction motor has superior operational efficiency compared to the 125HP motor, with an average efficiency of 93.63% compared to 93.15%, as well as lower power loss of 4.8kW compared to the 125HP motor, which has a power loss of 5.01kW. The comparison results with the IEC 60034-30-1:2014 standard show that both motors are technically classified in the IE2 (High Efficiency) to IE2+ (Borderline IE3) category.

Key findings

  • The 150HP motor demonstrated an average efficiency of 93.63%, surpassing the 93.15% efficiency of the original 125HP motor.
  • Power loss in the upgraded 150HP motor was reduced to 4.8kW compared to 5.01kW for the 125HP motor.
  • Both motors are classified under the IEC 60034-30-1:2014 standard as IE2 (High Efficiency) or borderline IE3.

Keywords

Automotive engineeringElectric motorMotor oilInduction motorVariable-frequency driveOil pump

Identifiers

DOI
10.58432/aptd3z37
Journal
Algebra : Jurnal Pendidikan, Sosial dan Sains
Year
2026