Question

QUESTION 5 In a Y-connected, 3-phase, 4-wire p.p.s load, a current of 45.9L -36 A is flowing in the neutral. The positive and negative symmetrical components of the current in line b are: 1b2 = 18.6 L-15 A 1b1 = 21.3 L 64 A The voltage drops across the phases of the load are: Vc = 184 L 52 V Vo=226 L 60 V Va= 204 L-85 V 5.1 Calculate the impedances of the load [14] 5.2 Calculate the total complex, active and reactive power in the load using symmetrical components of the voltage and current [10]

Answer 1

4-wire pops load. Y - connected 3-phase 45.9 (-36 In = neutral cussent -5 4 18, 6 = 4 = 11.3 / و ي قرقعي 36ے دیا تهمكلارك تو مترا عدال1= F الهلاله || 1] : وید + مود + ب = ولت - ممهL + " وعدت 124 قوله : " لههر = = = = = ، وه 123° عمدا توو 13م ، ور+ 84 العاده + و یا تل ف هومیشهای323 عمل I + x ²1, + & Iqr. I = کاور + 2 الهيات كس في العام 36-لهیات هکله هنا روژه 7 + : 1 کو 2 - 8 ل ولا +3236 هیات A 48 .3 2 - 2 و 31 . 05 -

Now voltage chrops across load phases are given as ا وراء - لهم عدونا 15/581 : A- A food to somspoday سه 24 - २०५/-ड و 631597 . 98 ر 32. 27-12 2 92 : ه در دههها ک و3 و 2کے 15، م 4- 2 کرد =4422 لویه درد 23 . 80 سے ، 8 737275 . 8 Complex powes se Vet* + 15* + VI* الملح لا اله ل بولاق دو اور دیا،23 به ب الا به د اور 4 و24 ع هده مهارتها های 11وبعثات f*tiktur Je + [202,426 42 224 Lite + 194.22.) = 126.12.2014

put the values of Inor te, 29 as a war in equation 4 se 3[4.2van de transmet (sa complet pore) =34_123:37/23-29).(15:3/26) +422.972 J11042)/243.184) _ +(126.62/-378) 10.6.195) 7 4:37140d. solfas-19 +2832.414394048 +235543773727 244.042/35.50 A:s/ Real powes P=2144,043xCos(55.50) = 1214.091 w n Reactive power Q=2144.043 x sin (55:50) = .176.7.179YAR J Ans