Need in Detail handwritten step by step,each step 0 (CLO 2-C4)A 3-phase ring main ABCD fed at A at 11 kV supplies balanced loads of 50 A at 0.8 p.f. lagging at B, 120A at unity p.f. at C and 70 A at 0-866 lagging at D, the load currents being referred to the supply voltageA. The impedances of the various sections are shown in Figure -01.Analyze the currents in various sections as compared to each other and station bus-bar voltages at B, C anaD.111 kVSupplyA was pB1+106D3+1270 AOA +(8 lag0 866 lag1.2+10.90.8+j05C12) AUnit/ p.f.Fig-01

Answered: 0 (CLO 2-C4) A 3-phase ring main ABCD…

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter2: Fundamentals

Section: Chapter Questions

Problem 2.4MCQ

See similar textbooks

Similar questions

The circuit shows an unbalanced electrical installation powered by a positive sequence symmetrical three-phase network of 380 V compound voltage. The loads are single phase. Load 1 absorbs an active power of 950 W with f.d.p. 0.5 inductive. Load 2 absorbs an active power of 1,140 W with f.d.p. Unit. Load 3 absorbs from the network an active power of 760 W with f.d.p. 0.5 capacitive. Taking the network voltage URN as the phase reference, calculate: a) complex expressions of the line currents IR. Is. and IT
An 11 kV generating station has four identical 3-phase alternatorsGl, G2, G3 and G4 each of L0 MVA capacity and l2%o reaclarce.There are two section of bus-bar P and Q, linked by a reactor X ratedat 10 MVA with 24o/oreactance. From section Q load is taken througha 6 MVA, i 1kV/66kV step-up transformer (T1) having a reactance of37o. Determine the fault current if a three-phase short-circuit occursnear the high voltage terminal of the transformer (F) as shown inFigure.Assume prefault voltages to be 1 pu and prefault currents to be zero
Add the following two impedances (a) in series and (b) in parallel. Z1 = 4 + 3i and Z2 = 12 + 5i
sformer 1200 KVA, 11000/2200 V, 50 Hz e reactance/phase of the primary winding ar ding values for the secondary winding are C primary winding is connected in delta and
A balanced Y-connected voltage source with Eag=2770volts is applied to a balanced-Y load in parallel with a balanced- load where ZY=20+j10andZ=30j15ohms. The Y load is solidly grounded. Using base values of Sbase1,=10kVAandVbaseLN=277volts, calculate the source current Ia in per-unit and in amperes
Does an open- operation, the kVA rating compared to that of the original thr-phase bank is (a) 2/3 (b) 58 (c) 1
Three single-phase transformers, each rated 10MVA,66.4/12.5kV,60Hz, with an equivalent series reactance of 0.1 per unit divided equally between primary and secondary, are connected in a three-phase bank. The high-voltage windings are V-connected and their terminals are directly connected to a 115-kV three-phase bus. The secondary terminals are all shorted together. Find the currents entering the high-voltage terminals and leaving the low-voltage terminals if the low-voltage windings are (a) Y-connected and (b) - connected.
Consider the three single-phase two-winding transformers shown in Figure 3.37. The high-voltage windings are connected in Y. (a) For the low-voltage side, connect the windings in , place the polarity marks, and label the terminals a, b, and c in accordance with the American standard. (b) Relabel the terminals a, b, and c such that VAN is 90 out of phase with Va for positive sequence.
Draw Wye- Delta three phase transformers connection ( no-load and full-load) in Lt-spice
Consider the network given in figure below, where the numbers indicate admittances in per unit. Find the admittance matrix. 1-12 2- j3 1- j2 2- j6 3. 3-j4 1-j4
6. For the air core transformer circuit shown below, determine the currents la and lb in the direction shown. Express each answer in polar form. R1-302 www la ZI1=150 E=10/0 M=j20 Ze= n Z12=j62 lb R2=50 la Ib
What are two main types of three-phase connections

SEE MORE QUESTIONS

Recommended textbooks for you

Power System Analysis and Design (MindTap Course …

Electrical Engineering

ISBN:

9781305632134

Author:

J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:

Cengage Learning