Explain the Power Chart

The phasor diagram shown in Figure with the x and y axes added, as shown. This diagram may be converted to a 'power chart' by multiplying each phasor in the diagram by V_R / Z, as shown in Figure, where Z is the impedance of the line.  This shifts the diagram by the element impedance angle (ψ) and changes the units to (volts)² / (ohms), i.e. to VA units. The 'x' and 'y' axes are then scaled directly in Watts and VAr's respectively.

For a constant V_R the scale of the diagram remains fixed and the sending end voltage (V_S) and load angle (δ) are readily estimated for various power and VAr flow conditions.

Posted Date: 6/5/2013 1:39:50 AM | Location : United States

Ask an Expert

Related Discussions:- Explain the power chart, Assignment Help, Ask Question on Explain the power chart, Get Answer, Expert's Help, Explain the power chart Discussions

Write discussion on Explain the power chart
Your posts are moderated

Write your message here..

Related Questions

Analog communication systems, Q. Analog communication systems? An analo... Q. Analog communication systems? An analog message is a continuum of possible amplitudes at any given time, and analog signals are continuous in time and in amplitude, such as

Find the minimum number of bits per byte, Q. If it is desired to store Eng... Q. If it is desired to store English-language writing with 1 byte representing each letter, find the minimum number of bits per byte that could be used. Ans. For the 26 le

Nicol prism, how much and what to write it is of 30 marks how much and what to write it is of 30 marks

Gunawan, conclusion about electrical engireng?? conclusion about electrical engireng??

Electrical machines, what is park transformation what is park transformation

Illustrate gas power plant, With the help of schematic diagram illustrate G... With the help of schematic diagram illustrate Gas Power Plant. Describe the effect of reheating, regeneration and inter cooling with the help of suitable T-S diagrams. Give the

Two quadrant type a chopper or class c chopper or reversible, Two Quadrant ... Two Quadrant Type A Chopper or Class C Chopper or Reversible Chopper The  quadrant type A Chopper  is also  known as reversible chopper   because  the polarity of the load cur

Working of r digital to analog converter, 2 n -R D/A CONVERTER An n-bit... 2 n -R D/A CONVERTER An n-bit 2 n -R D/A converter needs 2 n resistors of equal value R and (2 n+1 -2) analog switches. A 3-bit 2 n -R D/A converter is shown in Figure, which

Simulation of a standard ic linear regulator, 1.    Introduction The ob... 1.    Introduction The objective of this assignment is to design and evaluate a stabilised discrete linear power supply. The power supply requires to be designed according to t

What is accelerator key, A keyboard shortcut for a command. For example, Ct... A keyboard shortcut for a command. For example, Ctrl + Alt + Delete are an accelerator key for the task manager in Windows 95.