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.
Q. Show Maximum Power Transfer? In order to investigate the power transfer between a practical source and a load connected to it, let us consider Figure , in which a constant v
Q. Derive the equations of the self bias circuit? A circuit which is used to establish a stable operating point is the self biasing configuration. The circuit is shown in Fig
Q. Show Step-motor control system? Figure illustrates a system in which the prime mover used in the disk-drive system is a step motor driven by pulse commands. In response to e
distillation
Submit a brief report on the selection of two commercially available sensors for the following: • Research and recommend a sensor for a real full size conveyor system of approxima
A 440v 4-pole dc generator takes an armature current of 50A when rotating at 626 rpm. the armature circuit resistance is 0.25 ohms. determine the generated emf?
Explain graphic adapter and monitor. Video card changes digital output from the computer in an analog video signal and sends the signal by a cable to the monitor also termed a
The frequency domain representation of a signal is shown below: i. What are the fundamental frequency and the corresponding period of this signal (shown in Figure )? ii. Pl
Mode1 When the positive pulse from PWM is applied to the transistor Q shown in figure it gets turned on. In this condition current flows through transistor Q and.
Q. Explain Charge-to-Charge Amplifier A circuit is shown in Figure in which there is a capacitor C1 in the - input line and a capacitor Cf in the feedback loop. KCL at node X g
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