Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Power in Balanced Three-Phase Circuits
The total power delivered by a three-phase source, or consumed by a three-phase load, is found simply by adding the power in each of the three phases. In a balanced circuit, however, this is the same as multiplying the average power in any one phase by 3, since the average power is the same for all phases. Thus one has
P = 3 VphIph cos φ
where Vph and Iph are the magnitudes of any phase voltage and phase current, cosφ is the load power factor, and φ is the power factor angle between the phase voltage ¯Vph and the phase current ¯ Iph corresponding to any phase. In view of the relationships between the line and phase quantities for balanced wye- or delta-connected loads, Equation can be rewritten in terms of the line-to-line voltage and the line current for either wye- or delta-connected balanced loading as follows:P = √3 VLILcos φ
where VL and IL are the magnitudes of the line-to-line voltage and the line current. φ is still the load power factor angle as in Equation, namely, the angle between the phase voltage and the corresponding phase current.
Background of Energy Conservation As a thumb rule, the energy needs of a country are about 1.5 times its GDP or the economic growth rate. India's projected growth rate up to
Define the Signals in Time Domain? The time domain is the type of visualization that most people are familiar with. This method shows variations of a signal with time. The most
a) Diagram FMS layout configurations with labeling. b) what are the basic components of FMS?Discuss in briefly. c) Describe the function of material handling system.
WHOLE COIL WINDING
What is tunnel effect? Discuss the Alpha decay as an example of tunnel effect. Prove that tunneling increases on decreasing the height and width of the barrier. Explain what do you
Consider the optical cavity shown below. (a) Compute the photon lifetime. (b) Compute the cavity Q (assume that the wavelength region of interest is 500nm). (c) Su
Q. Show how the conservation of power is satisfied by the circuit of Figure.
Explain the terms: valence band, conduction band, valence electrons, and energy gap with the help of suitable diagrams. Valence Electrons: The electrons in the outermost orbi
the covers of electrical machine are made of
Q. Determine the Laplace transform for each of the following functions from the basic de?nition of Equation. (a) f 1 (t) = u(t) (b) f 2 (t) = e-at (c) f 3 (t) = df (t) dt,
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd