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EBK MINDTAP FOR HERMAN'S DELMAR'S STAND
- 2. (a) (b) (1) A 100 kVA, 4000 V / 200 V, 50 Hz single-phase transformer has 100 secondary turns. Determine: The primary and secondary currents. The number of primary turns. Three single-phase transformers are connected in Delta- Wye (A-Y) as shown in Figure 2.1. Each transformer is rated 100 kVA, 2300/13800 V RMS, 50 Hz. The total three-phase load L is 270 kVA with a power factor of 0.866 lagging. The input voltages are: VAB = 23000° VBC = 2300 Z-120° VCA = 2300 120° Assume that the transformers are ideal and the line-to- neutral voltage on the secondary are in phase with the input voltages. A B C 100000 100000 b narrow_forwardASAPchoose the correct answer from the choices belowarrow_forwardQ4/ (A) What is the voltage measurement Vx-y , for the circuit shown below. 4v 4v 20 50 yarrow_forward
- Reconsider Problem 3.29. If Va,VbandVc are a negative-sequence set, how would the voltage and current relationships change? (a) If C1 is the complex positive-sequence voltage gain in Problem 3.29 and (b) if C2 is the negative sequence complex voltage gain, express the relationship between C1andC2arrow_forward2. When a large shunt capacitor is suddenly connected in parallel with the load bus in the distribution feeder, what would happen to this bus current? O A. Increase B. Decrease D. None of Abovearrow_forwardpart d,e and f onlyarrow_forward
- High voltage engineering subjectarrow_forwardPower systemarrow_forwardFor each matrix, lot row 1 correspond to loop 1, row 2 correspond to loop 2, and so on Also, enter positive values for positive voltages and negative values for negative voltages Jrite a matrix equation that determines the loop currents 44 V 16 V OFORarrow_forward
- Do it in 5 minutes i wil give u like for surearrow_forwardiii. Is the copper losses inside a power transformer feeding certain load: (a) Increased with the increase of the reactive power in that load. (b)Constant with the increase of the reactive power in that load. (c) Decreased with the increase of the reactive power in that load. iv. Is the iron losses inside a power transformer feeding certain load: (a) Increased with the increase of the reactive power in that load. (b)Constant with the increase of the reactive power in that load. (c) Decreased with the increase of the reactive power in that load. v. Is the power consumption of a power system feeding an AC load: (a) Increased with the increase of the power factor in that load. (b)Constant with the increase of the power factor in that load. (c) Decreased with the increase of the power factor in that load.arrow_forwardIn a Dd1 transformer ,___________________ a. LV leads HV with 330 degree b. HV lags LV with 30d egree c. LV leads HV with 30 degree d. LV lags HV with 330 degreearrow_forward
- Power System Analysis and Design (MindTap Course ...Electrical EngineeringISBN:9781305632134Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. SarmaPublisher:Cengage LearningElectricity for Refrigeration, Heating, and Air C...Mechanical EngineeringISBN:9781337399128Author:Russell E. SmithPublisher:Cengage Learning