Power Factor and improvement



Capacitance
Xc=106/2 fC = V/I
Capacitor current = kVAr x 1000 / V
The opposition to current in a capacitor is termed as capacitive reactance. The current in a purely capacitive circuit will lead the voltage by 90.


Effect of low power factor
kW capacity of the transformer is decreased
Cross-sectional area of the busbars and the switchgear must be increased
The kVA capacity of the alternator is more



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1.1 Introduction:
Energy is required in various forms to do useful works, continuous improvement in the standard of living in any society. Energy sources therefore have to be explored, developed and managed to enhance industrial progress, National security and financial stability of nation. The electrical energy is exclusively generated, transmitted and distributed in the form of alternating current. Most of the burden are inductive in nature and hence, have low lagging power factor. This low power factor is highly ....etc

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AUTOMATION IN POWER FACTOR IMPROVEMENT USING PROGRAMMABLE INTERFACE CONTROLLER
INTRODUCING THE TOPIC
Definition of power factor.
Definition of power factor correction.
Leading and lagging power factors.
Importance of power factor to be unity.
OBJECTIVES OF THIS PROJECT
To counteract the undesirable effects of electric loads that create a power factor that is less than one.
To improve the stability and efficiency of transmission network.
Monitoring the power factor changes using PIC and LCD in real ....etc

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Power factor improvement of single phase ac voltage controller employing extinction angle control technique ppt wants
Full details about Power factor improvement of single phase ac voltage controller employing extinction angle control technique ppt ....etc

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power factor,its consequences.and improvement
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