SYNCMTR1 Synchronous Motor Characteristics Copyright 2004 Kilowatt Classroom‚ LLC. Synchronous Motors are three-phase AC motors which run at synchronous speed‚ without slip. (In an induction motor the rotor must have some “slip”. The rotor speed must be less than‚ or lag behind‚ that of the rotating stator flux in order for current to be induced into the rotor. If an induction motor rotor were to achieve synchronous speed‚ no lines of force would cut through the rotor‚ so no current would
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accelerate them‚ and protect them. Starters are made from two building blocks‚ contactors and overload protection: • Contactors control the electric current to the motor. Their function is to repeatedly establish and interrupt an electrical power circuit. • Overload Protection protects motors from drawing too much current and overheating‚ from literally “burning out.” = STARTER + CONTROLLER OVERLOAD PROTECTION FIGURE 1. A STARTER IS MADE UP OF A CONTROLLER (MOST OFTEN A CONTACTOR) AND OVERLOAD
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hardware development. Also‚ it includes two circuits that need to be designed and developed‚ specifically analogue and digital part. Hence‚ to prove the circuit works‚ the simulation of the output need to be shown. This heat sensor consists of auto cooling fan and also water pump system. When heat is applied to the sensor‚ the sensor will detect the heat by electrical characteristic which is the resistance that produced by sensor. The signal conditioning circuit and the water pump and cooling fan will
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1. INTRODUCTION The project “Automated Electricity Meter” aims to move away from the traditional method of manual reading of electricity meters in which an individual has to physically record the reading. Instead the project proposes to successfully be able to take the meter reading automatically without having a person be physically present while taking the reading‚ thereby reducing manpower requirement. This system helps the users by alerting them about the peak loads (max energy consumption)
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QUESTION 1a Block L will be powered by a single phase 100A distribution board. Power One ring circuit will provide power for the generator/switch room and substation room and will be protected by a 32A type C BS EN 60898 RCBO. An RCBO will be used because equipment could be plugged in and taken outside and it will be type C because inductive loads could be plugged in. The other ring circuit will provide power for the workshop and restroom and will also be protected by a 32A type C BS EN 60898
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Treatment Plant INTRODUCTION The primary function of protective devices in a power system is to detect short circuits and isolate the fault by activating the appropriate circuit interrupting devices‚ which increases the reliability and safety of the electrical system. The relay co-ordination study is required to select the protective devices and necessary settings so that circuit interrupter closest to the fault opens before other devices. SCOPE OF WORK Perform protective device co-ordination
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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. Using
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What is Magnetism? Properties of Magnets: Magnet: any material that attracts iron and materials that contain iron Magnets attract iron and materials that contain iron. magnets attract or repel other magnets. In addition‚ one part of a magnet will always point north when allowed to swing freely. Magnetic Poles: Magnetic Pole: any magnet with 2 ends‚ each is called a magnetic pole. Magnetic poles that are unlike attract each other and magnetic poles that are alike repel each other. Magnetic
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INTERART FINAL BILL - 500 sqft Annexure A- Civil & Electrical SR.NO. 1 1.1 ITEM CIVIL WORK Doors P / F Glass Door - 1000x2100‚ 12mm thk. Toughened glass (Trutuf / Gurind) door with patch fittings ‚ door spring ( DORMA) comprising of locking arrangement and SS handles 900mm long‚ 25 mm dia. Of Dorset make‚ including mirror edge polishing etc com P / F Flush Door - 750x2100‚ 35mm thk. flush door‚ of make Kitply/Greenply or equivalent‚ with Merino Vertiline 21065 & 21069 laminates on both sides as
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Fuzzy Logic Technique for Smart Grid Fault Detection Dr. S G Srivani1 (IEEE Member)‚ Abhishek Kumar2‚ Abhinav U Patil3‚ Praveen G4 Abstract—this paper introduces the general aspects of smart grid‚ which is the combination of many latest technologies for effective energy distribution and usage. Fault occurrence in power grid is one event which is completely unexpected. Out of many Computational Intelligence methods to deal with such an event Fuzzy Logic techniques
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