Recent content by Shima

57/80 failed

Thanks for the respond. You are correct the frequency for a full wave rectifier is twice the line frequency. I just not sure about the first question. If the voltage is line to line, then the max output voltage is also line to line. IN this case in capacitor formula, the max voltage needs to...

Hi there, I appritiate if anyone can give me the respond to the two questions I have in the problem below. Design a full wave rectifier power supply that has an input of 120 vrms, 60 HZ, and requires a max voltage output of 17V and min output voltage of 12V. The power supply will provide...

It makes sense. Thank you.

Hi I am working on problem 129 from NCEES book. There are 4 wires in the conduit ( 3 phase 4 wires). In the calculation the fourth wire is compeletly ignored and the problem is solved as a 3 phase 3 wire problem. Does any one know why? Thanks

You are right, the NCEES questions are the old exam questions. I wish they would have retired more sample questions. Thanks

That makes sense. Thanks for the respond.

Hi there, I have a quetions. Problem below is from PPI Sample exam book: A Synchronous genrator is rate for 3MVA, 11kv, and has a power factor of 0.8. What is most nearly the magnitude of the rated current. Since the problem does not mention three phase, I used " I = S/V. The solution in...

Thanks Intern for the email address

I did create an account and was able to download his old samples but the new one does not have the answers. He mentioned in his website that he has the answers but I can not find his email to ask him.

Hi there, His website is moved and I can not find his email address in his new website http://klkaiser.com/pe-preparation.html. I would like to get the answers for the pe questions. do you have his email address? Thanks

Hi everone, I was gone for few days and just got back. I am very impress with all the responds I have got. It is great. Thank you so much all of you and thank you imagery complex for the helpfull videos and the discount for the books. I will order some of your books tonight. I hope they...

Hi there, Has anyone seen the power review video from the website below. I recommend you all to check the videos. They are free and very helpful to understand the material. My quetion is if any one ordered their practice books. I like to get one. They are kind of expensive. I like to at...

that is true. I just don't know how he got the Rth. If you know how he got the Rth. Could you please send me the details. Thanks

Thanks peele1 for the details explanation and the example.