So I've attached my graph and found that the windage/friction losses occur roughly around 230Watts. I just dont know how i further explain the magnetising current I0. I know I0 = input current on no load. So do i assumed from P = √3 x VL x IL x CosФ that CosФ=230/√3*220*6.8= 0.0849 or...
Homework Statement
Uploaded as image 1 I will show my workings for 2 if 1 are in the right direction
I also don't understand what is meant as I/O Designation charts (nowhere in my study notes)
Homework Equations
None
The Attempt at a Solution
Uploaded as image 2 is my attempt.
Homework Statement
Sketch, on a set of common axes, waveforms to represent the transient
response of circuits having transfer functions with the following parameters:
a) ζ = 0.5, ω = 1×10^3 rad s^-1
b) ζ = 0.2, ω = 2×10^3 rad s^-1
c) ζ = 2, ω = 1×10^3 rad s^-1
Homework Equations
wd=wo√(1-ζ^2)...
Homework Statement
a) If the firing angle is set for alpha=(pi/3) estimate the power dissipated in the bulb if it is rated at 100 W and the voltage source is 230 V @ 50 Hz.
b) An anomaly that can occur in controlled rectification is drift of the firing
angle on one half cycle, so causing an...
Homework Statement
Q1. a) In relation to Fourier analysis state the meaning and significance of
4
i) odd and even functions ii) half-wave symmetry {i.e. f(t+π)= −f(t)}.
Illustrate each answer with a suitable waveform sketch.
b) State by inspection (i.e. without performing any formal analysis)...
Homework Statement
A beam of rectangular cross section 200 mm deep and 100 mm wide. If the beam is 3m long, simply supported at either end. And carries point loads R1 to far left, R2 to far right, 1m to left 5kN load, 2m to left 10kN load.
(a) Calculate the maximum bending moment
(b) Calculate...