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i used just the 8th, didnt get the 9th; i dont think either is worth it.

i learned a lot from the questions posted and the responses. thanks to all esp Flyer and DK. you guys were helpful and the board is great!

what's that?

passed PE. Thanks be to God!!!! Zech 4:6

yes. another error from kaplan. i spent some time figuring this out and could not see why my answer was not there. i was not looking at the Kaplan solution. btw an example is in grainger.

that answer is definitely wrong. cross it out! the question asks for CT ratio of the HV side. CT ratio has nothing to do with the connection of the transformer, it has to do with only the load current. when a transformer is delta-Y, the CT is Y-delta, but that has nothing to do with the CT...

look at it this way. The ratio of line-to-line voltages would give you line to line currents. So forget about the sqrt 3, if you are dealing with line currents on both sides which is the case here. The transformer turns ratio is by definition phase quantity for prim and sec and this creates...