Recent content by Connorm1

Hi @anorlunda , So i know from the graph windage/friction losses constitute the power lost when the stator voltage=0V. I have actually reworked this question and got something I am more happy with. I've actually said the windage/friction loss is 220W from extending the graph to 0V. I know that...

So I've attached my graph and found that the windage/friction losses occur roughly around 230Watts. I just don't 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...

Attempt as above. image attached of Bytronic ICT3

Thank you, if No.1 is looking okay, i'll plod onto number 2 and get the rest answered for confirmation, thank you scott :)

Yeah you are correct, i meant IND 3 for rung 5 (N/O contactor 3/2). Also could you relink it, nothing there :) thanks!

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.

@rude man so after searching through second order system responses I have a graph that looks like this. How does it look?

Apologies I think I've gotten myself confused... I think I am looking too deep into it. I'll be back when i have some form of graph! Thanks for your help @rude man

This is what I'm unsure of, if it mentioned one of the above i could work through it via my notes... I've only encountered step change input for second order systems. Thus i understand which ones are under-damped (a/b) and which are over-damped c if this is the case. But how do i draw this? only...

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)...

@jim hardy I'm still unsure on this question... sorry.

Apologies i didn't add the image. So are you saying to integrate the sine wave between T/4 & T? Sorry only thing i found in my notes was very little other than the statement above.

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...

Okay think i got it now :) thanks for your help.

Oh yeah! So by shifting it to the right by T/2 you would get a regular square wave? and thus making it have only sine terms. With regards to to whether they have symmetry I actually cannot tell now, it doesn't look symmetrial about the y-axis so it's not an even function but it doesn't have...