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ee-342-2008-T2-midterm

# ee-342-2008-T2-midterm - University of Saskatchewan College...

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Unformatted text preview: University of Saskatchewan College of Engineering EE 342: Power Systems I Mid-term Examination A formula sheet is allowed Instructor: S.O. Faried October 2008 Duration: 2 hours 1. A 60-Hz, 500-kV, 3-phase transmission line is 320 km long. The distributed line parameters are: r =0.01864 Q/km, x, = j0.3728 Q/km, y =j4.4739 yS/km. The transmission line delivers 700 MW at 500 kV with 90% power factor lagging. Find: (a) The sending-end voltage and current. (b) The transmission line efﬁciency. (c) The voltage regulation. (d) It is required to compensate the line by a series capacitor bank. The degree of series compensation is 70%. Find the value of the capacitance per phase of the series capacitor bank. 2. The conﬁguration of a double circuit, bundle conductors, three-phase, 60-Hz, 500 kV, 400 km, transposed line is shown in Fig. l. The bundle spacing is 45 cm. aloo com o g o 0 Fig. 1 Each conductor of the bundle is Bluebird with an outside diameter of 1.762 in, a GMR of 0.0586 ﬂ and a resistance of 0.034 ohm/km. Find: a) The inductive reactance and shunt admittance of the line per phase per km. b) The surge impedance loading. c) The wavelength of the line. d) The disruptive corona voltage in kV for air temperature of 27° C, a barometric pressure of 740 mm and irregularity factor of 0.85. m Q} {520 KM do‘evmg; 700 MW R: £13945?)an 500w ‘ XL:J.5T2§ 52,34!“ 1% (1056;ij Y JH .H‘} 3‘1/MU/km ‘ Fm D A {3(1) PASIAMEzt%z 7&2 scrub ;(R7ﬂ {)1 #0619 <“2/km ja’zzm} jkmymolm) 1W : 02.723177. um" 31 Y : (301mm v W” U “mm m .00 um woe “U A53; (0?th ‘ ,WEﬂ 7L 671° : 118.5230) LLOQMO ‘32 [-63 K 43(10 ‘/ C, ” s‘mNXV 72; C-,0033°2 m6 ”' wwi, 30001%”.(QLUX3‘13JW'M2SM Mysprﬁf ”w ‘1‘ qua 5“,“?DWLQZ-ﬁé V A A 7 ‘ 7 V3 f yﬁph: 3H 12%? 4i§37°32°u H i if 2 7 13: (. 003%,,ng \$13M A (a. L: 7H1 5999M H2% 5&3? A . a7, #2272?» \ ‘1 700mm "a % % § M. "‘1 %‘ r 7. \I 71;“ LP. & )éjcc"1( "1 {3" u y LM 3 (MLQELQQJ7 ‘ / (9‘: ,10.5.!‘ﬁgi‘ggﬂiiibﬂ 1 < ° \ \I 77 W79 ,7‘ "m 7 I I ' f 15’- 3 \1 L00 R‘; Q "U” W Vé‘{/\’Clz)r\)gph* U5 Djwig I JR W3. ROMA ((351%) , , ,, ,, K 7, :19: \$13 ‘09” [QM 0(3)qu 1V5 Avﬂph ”C371. \Iafm f BERTDBVEJ R m 7, ,V W , i 1._f3)<4£vu9y3 f. DJZQiA Vggxq tifﬂ g ‘st “ ,, ,,,,, ‘ Y 7 7. 3 , , 7 7 7 ,3 , 7 4C) , Ell 7351,90559‘1‘2701’78Q m, _ 7 7 7, 7 7 77 7. , 7,77 :_,,011D§m1_” W769m3fgti‘,.m€’37’iff ,7 7 7 ,7 7 7 7 ,_ 7 ,7, . 77 ‘ 2 7.1101030 77,, 7 7 7, ,_ 7 ,7 7. 7 _, , 7 ,7 77 7 )7ex3cnvmf‘3um ‘7'?“ ’§L¢=bm”m72ﬁﬂa L1”) i W‘Im/ "3L, 37 3 3773;353:319 7H [77373733 3 7 , 7 3:333 >73; 37,: 4211332433717, ...
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ee-342-2008-T2-midterm - University of Saskatchewan College...

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