The coefficient of coupling for tow coils having L1 = 2 H, L2=8H ,M= 3H is :
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Q: Q4. A 200KVA single phase transformer with a voltage ratio 6350/660 V has the following winding…
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Q: Example 32.19. The following data refer to a l-phase transformer : Turn ratio 19.5 1; R,= 252; X, =…
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Q: 2.14 The resistances and leakage reactances of a 40-kVA 60-Hz 7.97-kV-V:240-V single-phase…
A: Dear student kindly resubmit question for remaining part.Thank you! 2.14 The resistance and leakage…
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Q: A) For the system shown in Figure (1), the line, bus, and transformer data are given in Tables…
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Q: Q1) A 20KVA , 2000/200 V single phase ,50 Hz transformer has a primary resistance of 2.5 0 and…
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Q: 2-A 33 kVA, 2200/220V, 50HZ single phase transformer has the following parameters. Primary winding…
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Q: A 120 kVA, 1350/330 V single phase transformer has the following parameters: R1 = 0.34 Q, X1 = 0.59…
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Q: Q2// Calculate the efficiency of transformer on full load at 0-8 p.f. lagging for a 25 KVA…
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Q: Q4. A 200KVA single phase transformer with a voltage ratio 6350/660 V has the following winding…
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A: Dear student as per our guidelines we are supposed to solve only one question in which it should…
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- TYDDIAD I Q4-(A)-draw the phasor diagram of the transformer at full load with inductive loadQ/A single-phase transformer with a capacity of 100 kVA and a voltage of 2000/400 and the equivalent circuit elements are as follows R1=0.10 x1=0.20 R2= 0.250 X2 = 0.75 RO = 500 XO = 150 It feeds a 90 kVA load at a voltage of 2000 volts and a power factor of 8.0 delayed. Calculate the initial voltage and current? Rogl JXql a Mmm T I', 2₁ Acti Go to6. The figure below shows a single-line-diagram of part of a power system. For each transformer in the diagram state a suitable connection method, giving reasons for your suggested connection method. G1 G1 800MW 200MW 15kV 10kV T1-T4 88 T5-T6 250MVA each 125MVA each 330/15kV 88/10kV Line 1 Line 2 T7-T8 100MVA each 330/88kV T9 T10-T11 50MVA 50MVA each 88/66kV 88/11kV T12 2MVA 11/0.4kV Singe-phase loads
- 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.How many transformers are needed to make an open-delta connection?Question 6 What is phase angle of voltage induced in primary and secondary windings of transformers due to mutual flux? Same Opposite Zero None of option A Moving to another question will save this response. AR e IT:7
- 4. A 220-kVA transformer with .2% resistance and 4% reactance and another 120-kVA transformer with 3% reactance and .15% resistance with the same voltage ratio. the phase angle is 33 degree and the total load .25 MVA. How much the load of each transformer.A 50 Hz, Scott connected transformer supplies an unbalanced two phase load at ( 400 V) per phase. For the leading phase the load has a resistance of (13.3 ohm) and capacitor of (318) micro farad in series. For the other phase the load consists of resistance (10) ohm and an inductance of (42.3) mH. Calculate both mathematically and graphically the lines currents on 3- phase side. The main transformer primary to secondary turns ratio is (12/1).4. Transformer is 7 kVA, 220/110 V transformer with Res= 0.7 ohm and Xes=0.8 ohm. It is connected in parallel with transformer 2 which is 10 kVA, 220/110 V transformer with Res= 0.4 ohm and Xes=0.5 ohm. The common load is an inductive load that needs 150 A at a lagging power factor of 0.8. a.) Solve for the current supplied by transformer 1. b.) At what percent rating is transformer working? c.) Determine the power factor of transformer 1
- For the transformer below determine the magnitude for the induced secondary voltage if: Ep = 1kV Np = 200 turns Ns = 800 turns M N₂: N₂ 0000000 eeeee Find the magnitude of the induced secondary voltage Es Es = unitsThe reactance of a generator is given as 0.1 pu based on the generator of 17 KV, 300 MVA. Determine the pu reactance on a base of 17 KV, 250 MVA. New pu reactance is.......A generator supplies a motor through a Y-A transformer. The generator is connected to Y side of the transformer. A fault occurs between the motor terminals and the transformer. The symmetrical components of the subtransient current in the motor flowing toward the fault are: I =-0.8- j2.6pu I =-j2.0pu I =-j3pu From the transformer toward the Fault: I = 0.8– j0.4pu I? =-j1.0pu 1 = Opu Assume X =X,=X, for both the motor and the generator. (a) Describe the fault type and find the prefault current, if any, in line a. (b) Determine the subtransient fault current in per unit. (c) Calculate the subtransient current in each phase of the generator in per unit taking into consideration the phase shift of the Y-A transformer.