the types of electric meter continuously operate to measure the instantaneous voltage and current and calculating the product of these to give out the instantaneous electrical power. The electric power is then integrated against time to give energy used. 1.1 Types of electric meters There are basically two kinds of electric meter categories‚ the electromechanical and solid state meters. 1.1.1 Electromechanical Meter The most common electric meter type is the Thomson electric meter which falls
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Real Time HVDC Simulator for both operator Training and Researching in the Cheju-Haenam HVDC System is proposed and its performance is studied by means of RTDS (Real Time Digital Simulator)‚ EMTDC (Electro-Magnetic Transients system for DC)‚ PSS/E (Power System Simulator for Engineering)‚ and experienced scenarios. The objective of this paper is to represent the strategy in development for KEPCO’s hybrid HVDC simulator for the Cheju-Haenam HVDC system. This simulator consists of two DC stations‚ DC
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analysis with and without Unified Power Flow Controller (UPFC) for six buses‚ three phase transmission line under L-L-L-G fault in simulation model. Unified Power Flow Controller (UPFC) is a typical Flexible AC Transmission System (FACTS) device playing a vital role as a stability aid for large transient disturbances in an interconnected power system. The main objective of this paper is to improve transient stability of the six bus system. Here active and reactive power on load bus of the system considered
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ABSTRACT In this paper we look into the recent trends in power transmission engineering‚ FACTS and HVDC. The first part of our presentation starts with a quick idea of FACTS. FACTS is defined as a power electronic based system and other static equipment that provide control of one or more AC transmission system parameters to enhance controllability and increase the power transfer capability. This paper also deals with the basic concept involved in the usage of FACT controllers which are capable
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for Enhancing Power Quality Belkacem Mahdad1‚ Tarek Bouktir2 ‚ Kamel Srairi1 1 Laboratory of Energy Systems Modeling (LESM)‚ Department of Electrical Engineering University of Biskra‚ BP 145‚ Biskra 07000‚ Algeria. Phone/Fax: + 213 33 74 91 54‚ Email: electrobelk@yahoo.fr‚ ksrairi@yahoo.fr 2 Department of Electrical Engineering‚ University of Oum El Bouaghi‚ 04000‚ Oum El Bouaghi‚ Algeria. Email: tbouktir@lycos.com Abstract—In practical installation of FACTS in the power system‚ there
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Contents 1. INTRODUCTION – HARMONIC LAOD FLOW ANALYSIS SOFTWARE 3 2. POWER SYSTEM HARMONICS 4 2.1 Concept of Power System Harmonics 4 2.1.1Fourier Series and Harmonics 4 2.1.2 Distortion Indices 6 2.1.3 Characteristics of Harmonics in Power Systems 7 2.2 HARMONIC SOURCES 8 2.3 EFFECT OF HARMONICS 9 2.3.1 Thermal losses in harmonic environment 10 2.3.2 Effects on power system equipment 10 2.3.3 Capacitor banks 10 2.3.4 Transformers 11 2.3.5 Rotating machines 11 3. HARMONIC LOAD FLOW
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Purpose: The purpose of these experiments[1] was to measure the exciting current and determine the core losses in a transformer using the open circuit test (experiment # 2) and to determine the equivalent circuit of a transformer by using the short circuit method (experiment # 3). Introduction: In order to determine the equivalent circuit parameters of a transformer two simple tests are used‚ namely the open-circuit test (experiment #2) and the short-circuit test (experiment #3). By performing
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1. Introductions In this assignment‚ a software package named ‘ERACS’ is used for diagram building of a power system‚ Load flow analysis‚ Balanced and Unbalanced Short Circuit analysis. Calculate the short circuit level (in MVA) in balanced‚ the current fed into the fault and the voltages of the healthy at bus 4 of the unbalanced circuit. Analyze and compare these two results which got by theory and analytical procedures with the system performance. 2. Procedures and Comments I.
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------------------------------------------------- EECS DEPARTMENT ------------------------------------------------- ------------------------------------------------- ASSIGNMENT 3 ------------------------------------------------- “PGCB is a single power supplier” ------------------------------------------------- Prepared For ------------------------------------------------- Dr. M. Abdul Awal ------------------------------------------------- ETE 451.1 -------------------------------------------------
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Dr Schofield Experiment: 3-Phase power system investigations Aims • • • To introduce 3-phase power systems as a common method to transmit electrical power over long and short distances. To investigate the effects of 3-phase loads on electrical power systems To investigate the differences between DELTA and STAR connections Introduction to 3-Phase Power Systems 3-phase power systems are a common form of transmitting electrical power (energy) from generation to load centres
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