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 Impedance in each branch - delta connection:
A delta connected balanced 3-phase load is supplied from a 3-phase 400 V supply. The line current is 30 Amp and the power taken by the load is 10 kW. Determine
1. impedance in each branch,
2. the phase current,
3. power factor, and
4. Power consumed if the same load is connected in star.
Solution
Delta Connection Load
Line current IL = 30 Amp
Phase current I ph = 30/√ 3 = 17.32 Amp
(a) Phase impedance Z ph = V ph / I ph = 400 V/17.32 Amp
= 23.095 Ω
(b) Phase current Iph = 30 Amp (already calculated)
(c) Total 3-phase power = 10 kW
But 3-phase power = √3 VL I L cos φ
∴ cos φ= P/ √3 VL I L = 10 × 1000 /√3 × 400 × 30
= 0.4811
(d) The same power shall be consumed if load is delta connected i.e. 10 kW.
Q. Compare MOSFET with JFET? a. In enhancement and depletion types of MOSFET,the transverse electric field induced across an insulating layer deposited on the semiconductor ma
Q. With suitable diagram explains the working of a sweep frequency generator. Sol. A sweep frequency generator or sweeper is a special type of signal generator in which the o
Q. Show an arrangement for multiplexing 64-to-1 by using four 16-to-1 multiplexers and one 4-to-1 multiplexer.
Forward Voltage Triggering If V a is increased the collector to emitter voltages of both transistor are also increased. Hence the leakage current at J 2 increase. This
Development tool for SDR i.e software defined radio
Develop a PSpice program and use PROBE to obtain Bode plots of the magnitude and phase of the transfer function ¯V out / ¯V in for the high-pass ?lter circuit shown in Figure (a)
Q. What do you mean by Sensors or Transducers? In almost all engineering applications there arises a need tomeasure some physical quantities, such as positions, displacements,
Explain temperature dependence of electrical resistivity and conductivity in semiconductors. The electrical conductivity of the semiconductors changes considerably with temper
Develop and execute a PSpice program to solve for the current I 2 in Figure.
(a) The key elements of a protocol are the syntax, semantics and timing. Give a brief explanation of each of these key elements. (b) A file contains 4 million bytes. Compare
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