The power transmission lines deliver power: A) From the generator substations to the load center customers B) From the distribution substations to the generator substations C) None of the choices are correct D) From the generator substations to the distribution substations E) From the generators to the generator substations

The power transmission lines deliver power: A) From the generator substations to the load center customers B) From the distribution substations to the generator substations C) None of the choices are correct D) From the generator substations to the distribution substations E) From the generators to the generator substations

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

Chapter8: Symmetrical Components

Section: Chapter Questions

Problem 8.41P

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Concept explainers

Distribution System

The final stage in the delivery of the electric power is the electric power distribution system. From the transmission system to the individual customers it carries electricity. The distribution system is connected with the transmission system and is used to lower the voltage of the transmission to medium voltage in the range of 2 kV to 35 kV with the help of transformers. This medium voltage to the distribution transformers located near the customer's premises is carried by the primary distribution system lines. These distribution transformers in turn lower the voltage to utilization voltage used in lightings, household appliances, industrial equipments etc. Through secondary distribution lines often several customers are supplied from one transformer. It is through service drops, the commercial and residential customers are connected to the secondary distribution system lines. Customers who demand a larger amount of power can be connected directly to the primary distribution system level or the sub-transmission level.

Question

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The power transmission lines deliver power:

A) From the generator substations to the load center customers

B) From the distribution substations to the generator substations

C) None of the choices are correct

D) From the generator substations to the distribution substations

E) From the generators to the generator substations

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With the same transformer banks as in Problem 3.47, Figure 3.41 shows the oneline diagram of a generator, a step-up transformer bank, a transmission line, a stepown transformer bank, and an impedan load. The generator terminal voltage is 15 kV (line-to-line). (a) Draw the per-phase equivalent circuit, aounting for phase shifts for positive-sequence operation. (b) By choosing the line-to-neutral generator terminal voltage as the reference, determine the magnitudes of the generator current, transmiss ion-line current, load current, and line-to-line load voltage. Also, find the three-phase complex power delivered to the load.
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Can any one solve ?
Tools and Materials for Use1.Power supply(EMS 8821, 0-120[V])2. transformer(EMS 8341)3. single phase power meter(EMS 8431, 750[W])4. alternating current meter (EMS 8425, 0.5/0.5/0.5 [A])5. alternating volt meter (EMS 8426, 250[V])6. connection leads (EMS 8941) question, 1. How does the load-sharing of the two transformers appear when the load changes during parallel operation of the transformer? 2. For what reason is the load current IL [A] always the same as the sum of current I1 and I2 flowing to each transformer, If not, for what reason? 3. What will be the load-sharing ratio between parallel operation of transformers with the same conditions and parallel operation of transformers with different rated capacities? 4. What happens when the ratio of each resistance and leakage reactance is not the same? 5. If U.V. is not shown on the primary and secondary windings of the transformer, what procedures and methods should be used to make parallel connections?
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i need the answer quickly
Neatly please 4. Draw the the two types of Compounded wiring diagram of DC Generator
1.a. Separate voltage-regulating units provide voltage-ratio control under load byA. causing different impedance drops in each phase.B. combining voltages from different phases.C. having series transformers in phase with the line-to-neutral voltage.D. exciting transformers having their primaries delta-connected. 1.b. A reactor is sometimes used with an autotransformer toA. limit short-circuit current.B. increase the full-load current.C. provide increased internal impedance.D. decrease the voltage ratio.
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