•This instrument is suitable for the measurement of direct and alternating current, voltage and power. •The deflecting torque in dynamometer is relies by the interaction of magnetic field produced by a pair of fixed air cored coils and a third air cored coil capable of angular ... إقراء المزيد

POWER FACTOR The cosine of angle between voltage and current in an a.c. circuit is known as power factor. In an a.c. circuit, there is generally a phase difference φ between voltage and current. The term cos φ is called the power factor of the circuit. ... إقراء المزيد

The term electric power quality (PQ) is generally used to assess and to maintain the good quality of power at the level of generation, transmission, distribution, and utilization of AC electrical power. Since the pollution of electric power supply systems is much severe at the utilization ... إقراء المزيد

POWER QUALITY There are different definitions for power quality.  According to Utility, power quality is reliability.  According to load aspect, it is defined as the power supplied for satisfactory performance of all equipment i.e., all sensitive equipment.  This depends upon the end user. ... إقراء المزيد

Electric Motors and Drives Fundamentals, Types and Applications Third edition Austin Hughes Senior Fellow, School of Electronic and Electrical Engineering, University of Leeds The aim throughout is to provide the reader with an understanding of how each motor and drive system works, in the belief that ... إقراء المزيد

In the current state of the art in the supply of electrical energy, there is an increasing need to make the overall electrical systems in residential building, large commercial buildings and in industrial sites etc -  more energy efficient, with better energy management;  safer ... إقراء المزيد

In the current state of the art in the supply of electrical energy, there is an increasing need to make the overall electrical systems in residential building, large commercial buildings and in industrial sites etc -  more energy efficient, with better energy management;  safer ... إقراء المزيد