i want to get details about digital object counter with burglar alarm within one day. I have my presentation. SO plz, hurry up ....etc

[:=Read Full Message Here=:]

Presented By:
Rahul Ranjan
Rahul Srivastava
Ravi Shankar Patel
Rishu Raj Singh
Shashi Bhushan


AUTOMATIC POWER FACTOR CONTROLLER CUM RECTIFIER
Project Aim
This project discusses the need for power factor correction and provided a suitable do-it-yourself (DIY) solution that could be used for small-scale industries and establishments.
In small industrial units where the load is contributed by a number of inductive appliances, it is cumbersome to switch in capacitor banks at the power entry poin ....etc

[:=Read Full Message Here=:]

Digital Microprocessor Power Factor Controller
Evaluation of the reactive load is achieved by taking instantaneous
measurements in all four quadrants of voltage and current. Then the the active and reactive components of the power are obtained by digitalized the values in the microprocessor and continuously
evaluating the components. cos phi ie the power factor is calculated from these two values.If the load deviates from the target power factor, then a 'trial switching' will be made on the as yet 'unknown Capacitor Step Values'. the ....etc

[:=Read Full Message Here=:]

3-Phase Power Factor Correction, Using Vienna Rectifier Approach and Modular Construction for Improved Overall Performance, Efficiency and Reliability
1.0 Abstract:
While applications for 1-Phase PFC are now familiar and prevalent, the same is not the
case with 3-Phase PFC. Many equipments using kilowatts of power from 3-Phase mains
should be candidates of 3-Phase power factor correction, because several advantages
ensue, both to the user of the equipment and to the utility. The Vienna Rectifier approach
to achieve 3-Phase ....etc

[:=Read Full Message Here=:]

sir,
i need a detailed description on water cooler with water heater with air conditioning ....etc

[:=Read Full Message Here=:]

i required abstract, block diagram, circuit diagram and some detail of tele industrial fault detection and automation. ....etc

[:=Read Full Message Here=:]

An Integrated Silicon Carbide (SiC) Based Single Phase Rectifier with Power Factor Correction



I. INTRODUCTION
Power supplies are one of the most crucial building
blocks of a modern society, converting high-voltage AC
into low-voltage DC for use in electronic circuitry in office
equipment, telecommunication, and consumer electronics.
Over 2.5 billion AC/DC power supplies are currently in use
in the United States alone, about 6 to 10 billion are in use
....etc

[:=Read Full Message Here=:]

A Single-Phase High Power Factor Rectifier,
Based on a Two-Quadrant Shunt Active Filter



Abstract

This paper presents a new technique to improve the
input power factor of a single-phase rectifier followed by an
inductive filter. It consists in the employment of a two-quadrant
active power filter, based on a conventional bidirectional DC-DC
converter, connected to the output side of the diode bridge. This
technique allows the extension of this rectifier range operation in
the continuous conduction ....etc

[:=Read Full Message Here=:]

Abstract”
This paper presents a simplified sinusoidal uninterruptible power supply (UPS) system. The proposed scheme includes features such as high power factor, low total harmonic distortion and good dynamic response at the ac output voltage. In addition, the scheme has the desirable characteristics of high efficiency, simple circuit and low cost compared with a traditional standalone multiple stages UPS with power factor correction. The paper also presents the circuit operation, the analysis and, experimental results of the proposed U ....etc

[:=Read Full Message Here=:]

Abstract
This work describes a novel method in improving the
input current total harmonic distortion (THD) as well as the power
factor of a three-phase suppressed-link rectifier-inverter circuit.
This proposed method makes use of only three bi-directional low
power static switches with a relatively simple gating circuit. This
paper illustrates how the proposed method is superior in reducing
the input current THD of a rectifier-inverter set to about 5%,
which is in line with the requirements of IEEE standard 519–1992.
This is a ....etc

[:=Read Full Message Here=:]