Investigation of Wireless Measure and Control Methodology for High Voltage Circuit Breaker I. INTRODUCTION The high voltage circuit breaker is the most important device for protection and control in power systems and its safety operation has always been an important requirement to be guaranteed. The working state of high voltage circuit breaker can be evaluating by the condition monitoring and fault diagnosis technology. If the data provided by the condition monitoring proved to be normal‚ the
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A hybrid nanomemristor/transistor logic circuit capable of self-programming Julien Borghetti‚ Zhiyong Li‚ Joseph Straznicky‚ Xuema Li‚ Douglas A. A. Ohlberg‚ Wei Wu‚ Duncan R. Stewart‚ and R. Stanley Williams1 Information and Quantum Systems Lab‚ Hewlett-Packard Laboratories‚ 1501 Page Mill Road‚ Palo Alto‚ CA 94304 Edited by Konstantin Likharev‚ State University of New York‚ Stony Brook University‚ and accepted by the Editorial Board December 19‚ 2008 (received for review July 9‚ 2008) Memristor
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that the voltage found across a piece of material is proportional to the current. If the temperature remains constant therefore the resistance is found to remain constant. Stefan-Boltzmann law states that when the temperature if above an average of 1000K‚ then the relationship of voltage and current should be found to be consistent with the formula AT4. The experimental data found in this‚ Physics of a Light Bulb‚ experiment both correlates and verifies the Stefan-Boltzmann law. The voltage and current
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with different stimulus voltages?No Activity 2: Identifying the Threshold Voltage 1. What do you see in the Active Force display?I saw a very slight peak at .8 2. What is the threshold voltage? .8 V 3. How does the graph generated at the threshold voltage differ from the graphs generated at voltages below the threshold?There was no movement below the threshold. Activity 3: Effect of Increases in Stimulus Intensity 1. How did the increases in voltage affect the peaks in the
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A SUMMER TRAINING REPORT ON OPERATION AND MAINTANANCE OF SUBSTATION UPCL BY SMITA DOBHAL - (07090105048) Submitted to the Department of Electrical Engineering In partial fulfillment of requirements for the award of Degree of Bachelor of Technology In Electrical Engineering Department of Electrical Engineering GOVIND BALLABH PANT ENGINEERING COLLEGE UTTARAKHAND TECHNICAL UNIVERSITY GHURDAURI‚PAURI GARHWAL UTTARAKHAND
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This charger will charge any 12V lead acid battery including flooded‚ gel and AGM. It is fully automatic and will charge at a rate up to about 4A until the battery voltage reaches a preset point at which it will switch to a very low current float charge. If the battery voltage drops again the charger will begin charging until the voltage once again reaches the cut off point. In this way it can be left connected to a battery indefinitely to maintain full charge without causing damage. An LED indicates
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PHYS 101-2 STUDY GUIDE 1. The study of stationary or resting charges. ____________________________ 2. ________________________ is a connection made to Earth. 3. ________________________ is the process by which electrons are added or removed from a body. 4. List the three modes of electrification. __________________________________________________________________________________________________________________________________________________________________________________________
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experiment. Some of the most common devices and meters to be used is described below. 1) RESISTORS Resistors are devices used to give a desired value of resistance. They are inserted into a circuit in order to lower the current of to produce a desired voltage drop. There are two kinds of resistors: a) the Fix Resistor and‚ b) the Variable Resistor. The fix resistor has a specific value of resistance which cannot be changed‚ while the variable resistor may have a any value of resistance within a specified
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both in SPICE and physical implementation. The results need to be reported from both the SPICE and physical measurements. 1 Current voltage characteristics of diodes 1. Design a circuit to measure the forward-bias current voltage characteristics of diode as shown in Fig 3 using Circuitlab. Figure 1: A SPICE circuit for plotting current voltage characteristics of diodes. 2. Obtain the characteristics of D1N4148 by SPICE simulation. 3.1. Simulate the power diode using
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Department of Industrial Electronic University of Minho‚ Campus of Azurém‚ 4800-058 Guimarães‚ Portugal delfimpedrosa@gmail.com‚ sena@dei.uminho.pt Abstract. Spinning a wire loop within a uniform magnetic field in a convenient fashion induces a voltage between the loop terminals. This effect can be used to build an electric power generator‚ such as the one described in this paper. A coil attached to a shaft spins within the magnetic field of a "U" shaped magnet. Three conveniently designed
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