You searched for POWER SYSTEM - Page 146 of 168

Stability Control Drives

Stability Control Drives: The concept of stability is very well known. By the term stability one implies the ability of a system to return to its original position or attain…

Polar Plot for Frequency Response

Polar Plot for Frequency Response: One of them is the Polar Plot for Frequency Response representation. The transfer function in the frequency domain is obtained by substituting jω for s…

Closed Loop Control of DC Motor

Closed Loop Control of DC Motor: Closed Loop Control of DC Motor - The dynamic behaviour of a system is described by a set of differential equations. On many occasions…

Introduction Control Techniques in Electric Drives

Introduction Control Techniques in Electric Drives: An electric drive is a well established industrial drive as it has several advantages and special features. Its Control Techniques consists in starting, speed…

Short Time Intermittent Duty

Short Time Intermittent Duty: Another class of duty for normally occurring loads is Short Time Intermittent Duty in which the load requires a constant power for a short interval of…

Electric Motor Cooling and Heating

Electric Motor Cooling and Heating: The geometry of an Electric Motor Cooling is too complex to predict accurately the heat flow and temperature distribution. This is a difficult task. A…

Reversible Drives using Choppers

Reversible Drives using Choppers: Using two quadrant choppers a reversible drive can be achieved, because this combination allows reversal of both current and voltage of the motor terminals. We can…

Reversible Drive using Dual Converter

Reversible Drive using Dual Converter: It is possible to reverse both voltage and current of the load using a dual converter. The current reversal is very fast in this case…