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!
Determine the active - reactive and apparent power:
In the given circuit, determine the active, reactive and apparent power.
Figure
Solution
The inductive reactance, XL = 2π fL
= 2π × 60 × 0.2
= 75.408 Ω
Impedance, Z = 15 + j 75.408 Ω
In polar form = 76.885 ∠ 78.749o Ω
Current in the Circuit
i = v/ Z = 220 ∠ 0o / 76.885 ∠78.749o
= 2.861 ∠ - 78.749o Amp (lagging)
Power factor cos φ = cos 78.749o
= 0.195 (lag)
and sin φ = sin 78.749o = 0.98
Active Power
P = VI cos φ
= 220 × 2.861 × 0.195
= 122.7 Watts
or P = I 2 R
Reactive Power
Q = VI sin φ
= 220 × 2.861 × 0.98
= 616.83 volt-Amp reactive or
Q = I 2 X
= 617.1 VA
Apparent Power
S = VI
= 220 × 2.861
= 629.42 Volt-amp
or
= 629.2 Volt-amp.
1. Introduction : Theory: Phase angle is defined as the number of degrees separating two sine waves of the same frequency. The Phase shift is defined as any change t
Energy conservation: NEP envisages a voluntary approach initially for promoting energy conservation along with emphasis on labelling of appliances. Gradually as awareness incr
what is the application of simple harmonic motion in electrical engineering?
Ask question (c) Reduce each of the given signal transmission situations to a source, coupling path(s), and receptor: (i) AM radio transmission to the human ear. (ii) TV transmis
INR (Increment ) Instruction This instruction is used to increment the contents of any register or memory location by one. There are two format.
A color television receiver is shown in Figure in block diagram form, indicating only the basic functions. The early part forms a straightforward superheterodyne receiver, except f
You are required to implement below shift system in MATLAB, t0 is the amount of shift towards left or right. y(t)= x(t-t0) Implement MATLAB code, where shift should be taken as
Sign flag Since D 7 bit in the results is 0sign flag is reset. This also shown that the results is positive.
Q. A dc series motor operates at 750 r/min with a line current of 100 A from the 250-V mains. Its armature-circuit resistance is 0.15 and its series-field resistance is 0.1 . As
Explain Polymers and their applications. Polymeric materials or plastics contain a large group of organo or organic metallic high molecules compound. The common properties of s
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