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Monitoring energy consumption and diagnosing abnormal behavior will enable utilities to introduce strategies to improve system resiliency, stability, and to meet energy efficiency targets. The deployment of advanced metering infrastructure (AMI) enables utilities to collect various raw data from its customers and networks. This paper presents contextual anomaly detection algorithm to detect irregular...
Since the Kyoto agreement on global greenhouse-gas emissions has been ratified by nearly all nations, individual countries pledged to reduce conventional fossil fuel-based generation and integrating more renewable energy sources within the electricity grids. With such enthusiasm, researchers have identified several challenges in achieving this goal. These challenges include extensive mix of utility,...
Partial discharge (PD) in power transformer degrades the dielectric insulation and results in insulation failure and breakdown after a long period. In fact, a partial discharge detector can gather signals from two or more PD sources which increase the difficulty on pattern recognition and insulation state assessment. How to separate multiple PD signals is meaningful to subsequent data processing....
In the present work, thermal ageing of oil impregnated pressboard material in mineral oil and nanofluid was carried out and fundamental characteristics viz surface discharge inception voltage under high frequency AC voltages and with harmonic voltages with different THDs are studied. It is observed that SDIV increases with increase in supply voltage frequency. Also, on thermal ageing, reduction in...
Partial Discharge (PD) is one of symptom that occur due to defect on the high voltage insulation system. PD measurement is needed to monitor the condition of equipment and avoid the failure. This paper deals with PD measurement by using Transient Earth Voltage (TEV) sensor. Applying a given voltage around 2 to 6 kV to artificial defects placed in a metal box produces PD. PD occurring inside the metal...
Dissolved gas analysis (DGA) is often use by theutility companies to monitor the health and to detect any faults of their transformers. The concentration and proportion of various gases dissolved in the oil are used to indicate whether there is an electrical or thermal fault within the transformer. A lot of data have been published in the literature on DGA levels for a mineral oil. However, the data...
This paper discusses about noise measurement in the high voltage laboratory by using high frequency current transformer (HFCT) and loop antenna. This paper explains how to measure the noise characteristics by using two sensors: HFCT and loop antenna. The measurement of noise characteristics was based on the measurement of background noise when the power source of the experiment system is off. The...
Dissolved Gases and Oil Characteristics are widely available data for detecting faults and evaluating condition of oil-impregnated power transformers. This paper presents the statistical insights of the effect of transformer paper deterioration to oil insulation. The oil characteristics, dissolved gases, and 2FAL data of 108 Indonesian transformers are collected. 2FAL is used as paper condition parameter...
Cross linked polyethylene (XLPE) is a polymeric material that has been used as insulator and it is widely used for underground cable nowadays. The underground cable may contain defects such as void and impurities due to imperfect manufacturing processes, and exposed to the moisture, which eventually could initiate to the occurrence of water tree under high voltage application. The occurrence of water...
Ceramic insulator is a kind of insulator that is used most widely especially in Indonesia. It has good property in both electrical and mechanical strength but has hydrophilic behavior that susceptible for leakage current flowed on the surface of insulator. Based on previous research, leakage current can be a good indicator to diagnose insulator surface condition. This paper presents leakage current...
This manuscript presents a various configuration of High Voltage Circuit Breaker (HVCB) operating mechanisms. As need of electrical power transmission system increases the use of circuit breakers (CB) also increased with high breaking capacity. With this context, this paper deals about operating mechanism (OM) in HVCB, opening and closing operation with control action. Moreover this review extensively...
Diesel Power Plant (PLTD) is one of power plants that commonly impact to the environment as well as it's expensive fuel. Diesel Power Plant is still inefficient because of high operation costs i.e. 89,31% depleted to fuel costs [7]. The combustion process on diesel engine does not produce a perfect combustion thereby require any changes. One of technology changes that more environmentally friendly...
Cibatu34-Mandirancan is one of the most important subsystem in Jawa Bali system. Peak Load of this subsystem is about 1.700 MW, several industrial costumers are also located here. On 13th March 2014 disturbance occured on Indramayu-Kosambibaru. This disturbance was followed by tripping of two transmission lines and all generators in Indramayu Power Plant. Disturbance Fault Recorder (DFR) data showed...
This paper briefly introduces the charging and discharging characteristics of electric vehicles, and calculates the charging and discharging load of electric vehicles by Monte Carlo simulation method. A dynamic scene analysis method is used to deal with the stochastic uncertainty of electric vehicles charging and discharging, and the dynamic neural network is used to predict the load. The paper uses...
Today, electrical innovation is the most needed both for own use and for industry. Therefore, researchers create various innovations to improve efficiency. There are so many innovations being developed that the efficiency of the power plant can be improved. One such innovation is the use of turning gear operations in generation to rejuvenate generator turbines and improve efficiency. The purpose of...
Circuit Breakers (CB) are widely used protection devices in High Voltage (HV) AC circuit. This condition makes the CB as one the fundamental HV apparatus. This situation encourages HV apparatus manufacturers to produce CB in different kinds of voltage level with different capability and performance. In this research paper, we proposed a modeling method which can be used to select appropriate commercially...
Rejuvenation and updating of a power generation technology is to make it more efficient, more reliable, and more environmentally friendly. Those conditions encourage the rejuvenation of Pesanggaran Bali power plant. Currently the power plant uses a diesel engine which emit a 978,448 ton of CO2 annually. The plan is to replace the diesel engine with gas engine with capacity of200 MW to generate electricity...
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