ECE-447 Quiz

# ECE-447 Quiz - ECE 447 Quiz Winter 2009 Name(please print 1...

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Unformatted text preview: ECE 447 Quiz Winter 2009 Name (please print) 1. Describe the procedure to connect power at the patch panel to a station. Speciﬁcally, which port (liver’dead) we connect ﬁrst to energize? .-"' cut. I. -' tins vii-cue) as? H :v i n a} "1 is. s. ti in. M,“ cor/l 2. Discuss the procedure to disconnect power at the patch panel. Speciﬁcally, which port (livefdead) we disconnect ﬁrst to de-energize? l/I‘J'lA/m. 1r)? -' we. call _. w e . i ' “v” " ' " “i ll '~ ll. Hi lit-ofﬂil SH! Tail r we: {‘3' .'_ 1 .. I i 5;. '1' 1:1. r": ‘- 3. The CDAS system has “hard channels” and “soft channels" to measure a variety of electrical quantities. Name two quantities that we measure with hard channels, and name two quantities that we measure with soft channels. lam-Lil r; I I}: aﬁsﬁfﬂe— 'I . Ibis-“l 'I“ " 'Hi. 1" I. a. f- . : 4. If we assume voltage as a reference @ 00 in output. What is the phase angle of: A) Pure inductive current? B) Pure capacitive current? If a voltage value is given on a 3-phase machine nameplate, do we assume that it is line—to—line or line-to-neutral? Also, is the voltage value given as peak or RMS or average? If we use Y or a model, what is the relation between line-to-line and line-to-neutral voltage in bothcases? r EVEN/if? J3 A;r/3¢/V;¢=? \ / U E “:4 c} {a W at } hm} __ 71 "' ll'l r. “ha-J W- Us] lot L view “E M i 6. Sketch the voltage in output and calculate Average value: . Uin=1DDSin(t} n ...
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ECE-447 Quiz - ECE 447 Quiz Winter 2009 Name(please print 1...

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