Search results

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...

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

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...

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...

Hi there, Does anyone have a better solution for the problem 3 on page 2-26 Chelapati book vol 1 for power exam. The solution in the book does'nt give the details. Thanks

Hi there, Can someone explain the reason for using batteries in series verses parallel in a systemor vice versa. Thanks

Does any one have NEC 2008 for sale?

Hi, I have hard time understand how I get value 111.75 from Mantissa 0.110111111. Please help.

Can some explain how the we get 111.75 from (0.0110111111)? Thanks