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Hello all, I am working on a desing of a new substation for a client and when discussing whether to use electronic vaccuum circuit breakers or fused switches the discussion of snubber cirucits come up. From what I have gathered so far, snubbers are required when using vaccum circuit breakers...

Just wanted to extend a big Thank You to everyone in this forum for helping me prep for my exam (which i passed!) Couldn't have done it without the input from everyone here on practice exams and personal questions as well.. Thanks!

It appears the state met last friday November 30th to discuss the exams (unless I misinterpretted the meeting agenda posted on the NYS Board of Professions website). Hopefully the results will come sooner than expected.

Are there actual problems like this on the exam? I'm not a fan of these practice problems as they seem to leave alot of information out (i.e the initial state of the relays or bulbs).

Why do they ignore the phase angle in the solution? They just do 1.5 - 1.0 divided by 1.0. Shouldn't the phase angle affect the voltage regulation?

I'm reviewing through the latest version of the EPRM and came across something strange relating to positive phase sequence (ABC). On page 34-4: VCA=Vp /_0 VAB=Vp /_-120 VBC=Vp /_-240 In all my other studies and text I've always seen it written: VAB=Vp /_0 VBC=Vp /_-120 VCA=Vp /_-240 Is...

Going thruogh some sample questions in the Camara "Power practice problems for the electrical and computer PE exam" review book, I've noticed that certain problems require you to use radians, while others you only get the correct answer when using degrees. My questions is, how do I know when to...

EDIT: Posted in wrong forum, please move to Electrical PE exam section. Good morning all. I am new to the boards and wanted to thank you all in advance for your help. On to my first question... From what I've read here and on other boards, the Power PE exam uses the 2011 NEC. I have a 2008...