www.ietdl.org Published in IET Power Electronics Received on 30th September 2013 Revised on 17th December 2013 Accepted on 18th January 2014 doi: 10.1049/iet-pel.2013.0751 ISSN 1755-4535 Three-phase interleaved high-step-up converter with coupled-inductor-based voltage quadrupler Yihua Hu‚ Weidong Xiao‚ Wuhua Li‚ Xiangning He College of Electrical Engineering‚ Zhejiang University‚ Hangzhou 310027‚ People’s Republic of China E-mail: woohualee@zju.edu.cn Abstract: This paper proposes
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Market Uncertainties Advisor: Dr. Abolfazl Pirayesh Neghab 2000-2004 B.Sc. Electrical Engineering‚ AmirKabir University (Tehran Polytechnic) - Iran GPA: 13.4/20 Thesis: Determination of Distribution Function of Inrush Current in Three Phase Transformer Using Monte Carlo Method Advisor: Dr. Georg Gharapetyan Research Interests System services in deregulated markets Planning and operation of power systems under market conditions Lightning and electromagnetic transients Renewable energy
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no load in three phase induction motor. APPARATUS REQUIRED Sl. No. 1 2 3 4 5 6 Apparatus Ammeter Voltmeter Wattmeter Tachometer Auto Transformer T.P.S.T. switch Type Range Quantity FORMULAE USED: 1. Input Power = W1 +W2 2. Copper Loss = 3 Iph2 Rac 3. Rac = 1.06 R‚ Where R is the Stator Resistance CIRCUIT DIAGRAM 3 - Φ Auto Transformer R FUSE 415 V 50 Hz 3-Φ AC Y 415 V 50 Hz 3-Φ AC 3- Φ Induction Motor A M C L V R Rotor V T P S FUSE T S C M L V B Y
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Functional Equipments a) Bus Bar b) Transformers c) Earthing System Purpose To carry Power feeding To transmit Power from one voltage to other To ensure effective grounding for safety & Protective operation. Isolate feeding equipments from source of supply (Potential ) Breaking the Current (Power flow) for normal maintenance; and for isolation of faulty section) To prevent damage to equipment from direct stroke of lightning. Protecting the transformer from the impact of surges. Back up Protection
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will supplied directly from Transmission Main Intakes (PMU)‚ Main Distribution Sub –station (PPU) or Main Switch Sub – station (SSU). Electrical substation is the place where all electrical equipments such as high voltage switching‚ three phase transformer‚ high voltage cables‚ low voltage cables‚ low voltage feeder pillar‚ battery charging and etc which are used for electrical supplying in power system and to make sure the safety of the system by the protection scheme. Basically‚ electrical system
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ELECTRICAL MAGAZINE: The Structure Of The Power System III En.wikipedia.org (2011) Electrical grid - Wikipedia‚ the free encyclopedia. [online] Available at: http://en.wikipedia.org/wiki/Electrical_grid [Accessed: 19 Jun 2012]. Most.gov.mm (2011) Transformer Operation and system voltage control. [online] Available at: http://www.most.gov.mm/techuni/media /EP_04018_2.pdf [Accessed: 17.06.12]. Sivanagaraju‚ S. and satyanarayana‚ S. (2009) Electrical Power Transmission and Distribution. New Delhi: Pearson
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relay provides the equipment complete protection against undesired voltage condition. The over voltage and under voltage relay is one of the important protective relays which is used in the practical application at industries to protect motors transformers and other electronic and electrical equipment and power system. DESIGN PRINCIPLE: The over voltage and under voltage relay is designed using potential
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Location Layout Plan Electrical Power Distribution Design Details of Design 3.1 3.2 3.3 Load Estimation & Lux Determination Propose & Design Electrical and Power Services Schematic Diagram for DB‚ SSB‚ &MSB 4.0 Maintenance Strategy 4.1 4.2 Transformer Switch GearandBackup Power System 5.0 6.0 7.0 Conclusion Reference Appendix 1.0 Layout Plan & Design 1.1 Location Location is an important aspect in electrical design besides determining the market value of a condominium. We have selected
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[pic] Question: Use Porters Five Forces Model to analyse your industry. Answer: Threat of new entrants In most industries‚ and especially in the Electrical Transformer industry‚ a new company cannot enter the market at an equal level with those of already established companies due to the number of barriers that exist‚ that will prevent them entering on equal grounds‚ some of these are as follows‚ · The cost of a new company staring up would be so large due to the large amount of new
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on/off controls as door opens/closes Control panels are UL Listed‚ labeled and constructed to meet the UL 508 standard. The pre-wired panel is complete with‚ but not limited to; magnetic contactor‚ overload protection‚ terminal strips‚ control transformer‚ control fusing‚ HOA selector switch and NEMA 1‚ UL Listed indoor enclosure. Optional outdoor enclosure and other NEMA rated enclosures available. Specify if CSA certifiaction required. APPLICATION UL Listed motor control panels provide easy
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