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Hello, I have been trying to log inot my NCEES account to check my exam grade but I have been unable. I get a message that says "Your results are currently unavailable......" Is anyone else getting this message?

Hello, I'm looking to switch career paths from designing electrical systems for the healthcare industry to substation/transmission lines engineering. I was hoping I could get opinions from engineers who work with medium and high voltage. I want to know what you think the future of the...

A found white paper that goes over relay schemes. I thought it would be a good idea to share it with this forum. It may come in handy during the PE exam.Grounding and Ground Fault Protection of Multiple Generators.pdf Enjoy.

A 3-pahse, 3-wire, ungrounded, 13.2kV (phase-to-phase) wye-connected source is connected to a balanced delta load that is grounded on corner A. The voltage measured between corner B and ground is most nearly: The answer to the problem is 13.2kV. but what I want to know is, what would be the...

I'm strugguling to understand why the current in this problem is I = 1pu. The problem is as follows: An electric generator is rated for 20MVA, 13.8KV. It is a diesel engine driven, three phase, four-wire system. The generator is sailent pole with dampers. The manufacturer's data for...

Does anyone know of a short white paper that goes over the basics of SPDs and some of the schemes used? Thanks in advance

Perhaps this is not the place to post this type of question but I will giv it a try. I was wondering if some of you could comment on your experience in working in the "Power Delivery" industry. You can comment on the type of work and calculations you have dealt with and that sort of thing. I...

Hello, Can someone verify the statement below for me: Any step-up or step-down transformer with delta-to-wye or wye-to-delta trasformer will introduce a 30 degree phase shift for positive sequence voltages and currents SUCH THAT THE HIGHER VOLTAGE SIDE LEAD THE CORRESPONDING VALUES ON THE...

The question goes as follows: A 208V wye-connected, ungrounded sytem suffers a ground at pahse A. Waht is most nearly the line voltage at phase B? The answer to the question is 208*SQRT(3) = 360V however I tought that for a wye connected transformer: VB= VBN - VCN The explanation in the...

A 208V wye-connected, ungrounded system suffers a ground at phase A. What is most nearly the line voltage at phase B? The correct answer is: SQRT(3)*208V = 360V Can someone shed some light into this problem please? I could probably memorise this, but I want to uderstand why this is the...

Hello, I'm looking for a good source I can use as reference and also I can do some excercises from. The topics I want to cover are things such as power flow analysis and short circuit carculations in a one-line format. I had been using Electrical, Machines, Drives, and Power Systems by Wildi...

Why are the copper losses multiplied by 4 and not by 2 in the solution to this problem? The question is as follows: A power transformer has the following test data at rated voltage: % of Nameplate kVA Total Losses (W) 0 460 50 2,370 The...

I do not understand why the answer is (D). If the circuit is functioning as a single phase full wave rectifier, the output current would be similar to that of the voltage output waveform; which is, waveforms with only positive values as shown below. For anyone who is wondering where the...

Does somebody knwo what the subscripts 3, and 1 onf relays 50/51 and 50N/51N mean? I can't seem to fin any literature that uses this notation. I use a GE Relay application guide; however the notation on this guide is different than the one used on the problem. Thanks

Will the April exam be using the 2012 edition of the NEC Code?