Introduction: This Electrical Measurements Lab is designed to give students an introduction to talking measurements from a breadboard. Students have two available methods for taking voltage‚ current‚ and resistor measurements. One of which‚ is to use a standard multimeter to take measurements. However‚ all measurements in this lab report come from the digital NI ElVIS board. A. Resistance: Given three resistors of different color codes‚ the theoretical resistance can be found by apply the standard
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current while achieving unity power factor at the rectifier input terminals. The operating constraints of the Vienna Rectifier with the carrierbased modulation strategy are examined carefully‚ and the proposed control algorithm ensures that appropriate voltage/current directional constraints are met. A promising cost-reduction opportunity can be seen with the elimination of input current sensing to operate the Vienna Rectifier. The control algorithm is verified via Saber simulation and experimental results
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Guan‚ Ming-Ta Yang‚ Jhy-Cherng Gu‚ Hsin-Hung Chang‚ and Chin-Lung Huang Abstract—Voltage flicker problems have long existed in several of the distribution areas served by the Taiwan Power Company. In the past‚ those research results indicating that the estimated ΔV10 value based on the conventional method is significantly smaller than the survey value. This paper is used to study the relationship between the voltage flicker problems and harmonic power variation for the power system with electric
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why it is important to have on a vehicle. Topic order 1. Distributor Spark plugs High voltage coil lead 2. Ignition module Ignition coil Distributor cam 3. Crank sensor Cam sensor rotor Ignition systems The ignition system includes components and wiring necessary to create and distribute a high voltage and send spark on time. Across a gap with a high voltage arc occurs across the spark plug inside the chamber. Air and fuel mixture temperature rises from
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| | | Voltage gain | | | | | Overall voltage gain | | | | | Output resistance | | | | summary | Very high input resistanceModerately high voltage gainRelatively high output resistance | Input resistance is relatively low.Large voltage gainOutput resistance is relatively high.Inverting amplifierLarge current gainFrequency response is rather poor. | CG/CB | Circuit | | | | Equivalent circuit | | | | characteristics | Input resistance | | | | | Voltage gain | |
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CURRENT PROTECTION FUNCTIONS ANSI 50/51 – Phase over-current ANSI 50N/51N or 50G/51G – Earth fault or sensitive earth fault ANSI 50BF – Breaker failure ANSI 46 -Negative sequence / unbalance ANSI 49RMS – Thermal overload CURRENT PROTECTION FUNCTIONS ANSI 50/51 – PHASE OVERCURRENT Three-phase protection against overloads and phase-to-phase short-circuits. ANSI 50N/51N OR 50G/51G – EARTH FAULT Earth fault protection based on measured or calculated residual current values: ANSI 50N/51N:
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1. Introduction Automatic Street Light Control System is a simple and powerful concept‚ which uses transistor as a switch to switch ON and OFF the street light automatically. By using this system manual works are removed. It automatically switches ON lights when the sunlight goes below the visible region of our eyes. It automatically switches OFF lights under illumination by sunlight. This is done by a sensor called Light Dependant Resistor (LDR) which senses the
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energy-efficient lighting‚ led to a complete change of electric loads nature. These loads are simultaneously the major causers and the major victims of power quality problems. Due to their non-linearity‚ all these loads cause disturbances in the voltage waveform. Along with technology advance‚ the organization of the worldwide economy has evolved towards globalisation and the profit margins of many activities tend to decrease. The increased sensitivity of the vast majority of processes (industrial
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the Department Date: Place: Mookkannoor ABSTRACT The development of HVDC (High Voltage Direct Current) transmission system dates back to the 1930s when mercury arc rectifiers were invented. Since the 1960s‚ HVDC transmission system is now a mature technology and has played a vital part in both long distance transmission and in the interconnection of systems. Transmitting power at high voltage and in DC form instead of AC is a new technology proven to be economic and simple in operation
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1. List the components of the x-ray generating system and the primary functions of each. a. Line compensator- measures the voltage provided to the x-ray imaging system and adjust that voltage to precisely 220 V. input voltage can vary up to 5%. b. Autotransformer- is designed to supply precise voltage to the primary side of high voltage transformer and to the filament circuit. c. kVp controls- by selecting the major or minor kVp controls‚ a more precise kilovolt peak is provided. kVp
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