Three-Phase Circuits (Y-Y and Delta-Delta), Lab Reports of Electrical Engineering

Download Three-Phase Circuits (Y-Y and Delta-Delta) and more Lab Reports Electrical Engineering in PDF only on Docsity! VII. EXPERIMENT: Balanced 3-Phase Y-Y Connected Circuits PRELIMINARY STUDY: 1. F is 2000 Hz for the 3-phase circuit given in the figure. Determine the line and phase voltage and current for the load (as amplitude and phase). 2. Find average power that each load used up. Find the average power that load used up. 3. Find the total average power that load used up by using 2-wattmeter method. Compare the result with you found in step 2. 4. Find the percent ratio of average power that got lost in the transmitting line (single phase) to the power generated by source (single phase). EXPERIMENT: 1. F is 2000 Hz for the 3-phase circuit given in the figure. Determine the line and phase voltage and current for the load (as amplitude and phase). 2. Measure the power that each phase load used up (According to the ground). Measure the total average power that load used up. 3. Find the total power that load used up by using 2-wattmeter method. Compare the result with you found in step 2. 4. Measure the average power lost in the transmitting line (single phase) and power generated by source (single phase). Find the loss ratio. PURPOSE: The purpose of this experiment is to investigate voltage, current and power analysis for 3-phase Y-Y connected circuits experimentally and theoretically Schematic Circuit in Y-Y Connection Cur"'1/\+ 2 ½O ) o 0 -:::: (._ f,b J -+ 1, r.,,J t-6 Sj -r Ô,2.i!>h,.,, -,-0,8c1,M -t t't ohın) �A- 2.. 0 o 1.2° -=- ( &) -tbôJ ı rCA. ,q · ı'-tcd-;.( /Do� )ZttA �• ,ı = 2., � d!:U: A,-,,, s j t r b 6 ";ı. ,ı., J 83 0 ':! 0 /!ı '"' 5 \ jL..C.::; '.),½ )-15',�� ArM� j Lıf\Sl. �"ci p1,,ı.._� ıJo\.\:ı� ' \(lO =-- VJ.. 1 --:. V().� -= 'IQ.rı ---.fbo -= 14 O - l- ı o �lOT .as,i ) -= %0 + 2o+,S53 --;:..'115,bCf )'�0 r - ok�\\� = VJ.., � ıJJ ✓eı..rı CIJ ::. VL:Jj 2�0 ,ao \-=- '-f Is , c 9 Jj.O V(l.rflj � Vı.1::. 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(o� ( 1 '- , &b J :: O ı t"l..' f'3 '.:; L-ı �J t:.ı!J�t; � ( 5, +6 x Cfb) Ç05 C:!fı, /b } � 2.._ If we calculate these power W1 W2 Conclusion and Comment we observed balanced 3 phase Y-Y circuits , We've seen different methods of Finding Power and We have seen that Phase current is equal to line current in Y-Y connection. We saw the 3-phase effect of SINGLE Phase VIII. EXPERIMENT: Balanced 3-Phase Delta -Delta Connected Circuits PRELIMINARY STUDY: For the 3-phase circuit in the figure f is 2000 Hz 1. Determine the currents IAB, IBC, ICA, IaA, IbB, IcC, Iba, Icb, Iac . 2. Find the voltages VAB, VBC, VCA . 3. Calculate the power in each phase of the load. EXPERIMENT: 1. Measure the currents IAB, IBC, ICA, IaA, IbB, IcC, Iba, Icb, Iac . 2. Measure voltages VAB, VBC, VCA . 3. Measure the power in each phase of the load. CONCLUSION and COMMENTS 1. Report all the procedures and measurements done in the experiment section. Add your comments. 2. Compare the theorical and measurement values of the circuit. I added resistors on the source side for the simulation to work correctly. � VLll\L -::c '-'f\;ıC>.� • ,.. J� � � -r\ia!.t..(I, '1>) o ıJ':ı. 1 � q_ O 00 }_Q ,, , o .... .!....v s {-= b � ooo .J_;;!a.9- o v :::/� = 6 'f (:)(JJ 1!.ıP \/5,-= Vııt � � Veı. \.ı ✓ Yl. -:: \Jt<- = ../'o<.. i:f-'\/ Al. ::. -../o...c. . :c�� � v,aıg ı.oJ.) ::_ ıı tı ::-�-ı..�-::e..3-=- 6ı:QO.+L,� o ı. 1 -=�:::.�3 � ".f-9) 1�,�1 :C. A � = 6cıooo .1..Q. _ 9 ı ı-3"� Arın-\ "1-50 �o - -:;> X.e<--:: 69ooo� ==�ı·· ��,� .� 150 / 'Ji,, 81- - ,:;:::: •• _., I.c. A- =- 6 q ()00 J..!2=? = q 2-/ "83, ıt/' , - q60 J"!h,r.1- :::? --::;: :rı:trJ fi,, 1-=]0 -: -r. B (_-- h 1:::1.0 -= Ie..A E 2-1.o _ 12 .,!-Y,.sı fı .L:]O ::-f s,. '3� J 4, sı.j =- q 2. )-!%. Bb0 JT J..='30 := I SC/, 3t, /-18'>�0 � -:= qı }<J3,'tı� G ,L9_0 -= /SY,3� ) 5,3,ıtı � • ..ı.b"'- = 1.tJ5 '-Is , -= \/ A� -::'\lo..'o = 6<i�ool..Jf_ - 1 :ı� (_ ::.. T.lA 1e.. 6 :: I.6 C. 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Le ’ — 1.905e+06 1 ot | et HF eb et Scopet —,_, VAB “4 frees VBC — VCA | st < os oe i Conclusion and Comment we observed balanced 3 phase Delta-Delta circuits , We have seen that Phase voltage is equal to line voltage in Delta-Delta connection. We saw the 3-phase effect of SINGLE Phase. We saw the kirchoff’s voltage and current law in the phasor area in the other hand we saw these phasor degrees.