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 phase - voltage and power:
A balanced star connected load is supplied from a symmetrical 3-phase 440 Volt system. The current in each of the phase is 40 Amp and lags 30o behind the phase voltage. Determine
1. phase voltage,
2. power,
3. reactive power drawn by a the load, and
4. phase impedance.
Solution
For three phase star connected load voltage applied VL = 440 Volt
(a) V ph = 440/ √3 = 254.03 Volt
Power current = I ph = 40 ∠ - 30o Amp = I L
(b) Power P3φ =3 VL I L cos φ = 3 × 440 × 40 cos 30o
= 26400 Watt = 26.4 kW
(c) Reactive power drawn by the load:
Q3φ = √3 VL I L sin φ
= √3 × 440 × 40 sin 30o
= 15242.047 Var = 15.24 kVAr
(e) Phase impedance Z ph = V ph I ph
=254.03 ∠ 0o / 40 ∠- 30o = 6.35 ∠ 30o Ω
Q. Use (a) mesh analysis and (b) nodal analysis to determine the current through the 4-resistor of the circuit of Figure.
Describe the effect of following parameters on working rate and accuracy of material removal in AJM. (i) Grain size (ii) Stand off distance (iii) Jet velocity. Draw sch
i am going to make a sinusoidal inverter as my final year project kindly help me in this regard.How can i make this project?
The one line diagram of a simple power system is shown below. The data of the system are given in the table below. (a) Draw the impedance diagram of the system and mark all impe
Q. For the capacitor shown in Figure connected to a voltage source, sketch i(t) and w(t).
Address Bus The address bus is the group of 16 lines. It is used to carry the address of memory location and addresses of input and output ports as shown. It is a unid
three reasons why a chamfer shouldn''t be considered an unimportant dimension
thus secondary winding of transformer consists of neutral line or not?
explain the operation principle
Q. Classify switching systems. In what way is stored program control superior to hard wired control? Ans: Classifications of switching systems are givenin block diagram belo
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