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Anyone here from Hawaii that got their FE results? I'm waiting on PE and it would make me happier knowing if anyone in Hawaii got their FE (then that mean's PE is on it's way)!

You can tell I've been working through the Kaplan problems again as it gets down to the wire. Attached is Afternoon problem 14 along with the solution. In the solution it mentions that P/(sin delta) is constant (if P goes up, sin delta goes up). Then it goes on to say (sin delta...

2 single phase transformers are connected in parallel with their primaries connected to a 25kV supply. Transformer 1 is rated at 600kVA, 25,000/600V and transformer 2 is rated at 500kVA, 25,000/610V. The equivalent impedance are 0.02+j0.05pu and 0.02 +j0.06 pu, respectively, based on 600kVA...

Hello, another NEC Kaplan question... The problem is asking for the full load current of the motor. Here are the specs: 3 phase, 100HP, 460V, 0.8 pf lagging, synchronous motor with normal torque characteristics. Looking at 2008 NEC Table 430.250 I found 101A as the full load current listed...

Hi Everyone, I'm not very familiar with NEC so hopefully someone can help me. Kaplan Problem 10 states: Given: A commercial building with an electrical power system that includes a significant number of 120V AC and 208V AC three phase loads (4 wire, wye connected). Computed, total load of...