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quiz7 - K it" cw 2 Wed Oct 27 2004 EE 381 é Q9 Quiz 7...

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Unformatted text preview: K; it" cw... 2/ Wed, Oct. 27, 2004 EE 381 . é Q9, . ' Quiz 7 Name:_;W—m__ have so Last First 1. How many pole distances does the rotating field move for a single cycle of current alternation? - _ 1 (MA-fl - bhE-SF-HC'QS M/t 2. What are the different types of rotors? Sf,” ”“13 C929“ '9- / . 3. W11 1i d? W11 th located? ' yares prings use ereare ey A “A“: *0. 03¢”: +4‘a S M: “A55 ewe. off—3' C’o 'm-jc’df" ..--’ L iobrfif’E‘LEE—ii "TM-37 cat-C— llllll .-I . ‘ - I '1‘“ “Na Siwflfi' 31“ one“? ”' «PW "arose" "Wm-s. ’9 mémmat 4. How many slotslpoIe/phase does a concentrated stator winding have? What is kg for such awmdmg‘? i flat/Pal: / ”that 5:4 (231} : 32-4-4". to . ..—.- 9/)” WV" Kdl: n 5041) 5.3m 6:»:in f 5. If a coil has a span of 3A of full pitch, what" 1s kp? ,fif|$o(lr“¥l‘> Lisi / “Fr” 5.." . _ :19: Cafe. (if) 7" (Cf-*2 (Li? "I :4 we, 6. ' A IO-pole, 3-phase induction motor has a synchronous speed of 600 mm and a full load slip of 0.05. Find the following: I DIS¢GODrf~ 55-0-03— (a) Frequency of the supply. . emf. { ._-. M “tw‘t'°'}(‘°‘ Ugo/Ha . N 5 "I i7 “720 irao fle—n—w— Hr“. [45,)” ' . ..-/ N5 (b) Speed of them 1n rpm. _ I'CVLN.‘ f __ 51C fliefij‘xgli'ffi} = 'Z’JH‘e Mm :r- N -- (MS? —" Nah-‘5) 5’ females-s.) =' FM” “fe- (c) Speed' in mechanical radians per second. I" 1'.4. . _ . .4; l", I' ’l; 1‘ {fat tat war _5_ er (d) How many electrical degrees does the stator have? (6) What is the relationship between 9am: and 3mm? ...
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