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This paper investigates the effect of grid cell size on ground flash density (GFD) of distribution powerlines. The study was based on the lightning data provided by local lightning detection systems and the analysis was conducted by overlaying ground flash map to the map of utility distribution network. The study result shows that GFD based on grid cell size with less magnitude has higher correlation...
Macro Demand Spatial Approach (MDSA) is an approach introduced in long time electricity demand forecasting considering location. It will be used at transmission planning and policy decision on electricity infrastructure development in a region. In the model, MDSA combined with principal component analysis (PCA) and qualitative analysis (QA) to determine main development area in region and the variables...
Macro Demand Spatial Approach (MDSA) is an approach introduced in long time electricity demand forecasting considering location. It will be used at transmission planning and policy decision on electricity infrastructure development in a region. In the model, MDSA combined with principal component analysis (PCA) method to determine the variables that affecting electricity demand in industrial area...
PT. Badak NGL is a company that operates the largest LNG Plant in Indonesia with maximum LNG (Liquefied Natural Gas) production capacity 22.5 MTPA and LPG (Liquefied Petroleum Gas) production capacity 1.0 MTPA from eight (8) trains. Lightning is still considered as a potential threat for gas companies operating in tropical region well known with its high isokeraunic level, Its adverse effects could...
Indonesia islands are situated in equatorial region with relative high density of thunderbolt rate. As developing country Indonesia builds many generating plants. During lightning stroke, some spikes occurred in turbine-generator vibration monitoring systems. Electromagnetic compatibility (EMC) problem was happened in the systems. This paper proposes mitigation technique to overcome spikes in vibration...
As the largest archipelago in the world situated along equatorial line, Indonesia exposes to high potential lightning strikes, which are hazardous for operation of geothermal power plants. The severe effect of lightning strikes results in system malfunction leading to interrupted plant operation. This paper presents a novel grounding technique based on skin-effect theory and its implementation for...
In order to guarantee reliable industrial power supply, predictive maintenance for generator becomes highly necessary. This measure is expected to reduce disruptive generator due to degraded insulation of its stator winding. Partial discharge (PD) is responsible for this disadvantage condition. The objective of this paper is present partial discharge (PD) analysis using statistical methods for predictive...
Generator is one of the most important apparatuses highly responsible for production process. Predictive maintainance is necessary for its high availability and reliability. It is reported that about 37% of problems of disruptive generator is caused by stator winding and about 40% of those problems is caused by disruptive insulation, to which partial discharge (PD) contributes. This paper presents...
Indonesia is situated at region with relative high keraunic level in the world. It is often reported that a lot of energy exploration companies in the region suffer from interference effects of the tropical atmospheric electricity as false alarm in companies' instrumentation system leading to malfunction. This paper presents an integrated framework of lightning protection system for instrumentation...
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