NO AI. Thank You The figure to the right identifies a 1-phase protectioncircuit. Identify the following components by circlingthema. Relayb. CTc. PTd. Conductor leadse. BreakerBusFigure 1Name 3 different types of breakers

a. Relay:What it is: A relay is an electrically operated switch that uses an electromagnet to…

Answered: The figure to the right identifies a…

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

Chapter7: Symmetrical Faults

Section: Chapter Questions

Problem 7.21MCQ

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h.1. In an alternating-current system, the maximum size for a copper grounding electrode conductor isA. 250 kcmil.B. 3/0.C. 500 kcmil.D. 4/0. h.2. The figure shows a fault condition in an ungrounded electrical system. Which of the following will occurbecause of the fault in this system?A. Only the overcurrent protector at Point A will trip open.B. The ground fault will heavily damage the service.C. Nothing will happen until a second ground fault occurs.D. The overcurrent protection will trip, shutting off all the line side power.
18. If the current flowing in an operating circuit must be approximately measured without interrupting the current, which of the following through-type current transformers would you recommend? A. Bar-type B. Plain-through-type C.Split-core-type D. Bushing-type
solve with explanation.
2. What type of potential transformer would you use for a 362-kV grounded-neutral metering application on an interconnection system? A. Bar-type B. Cascade-type C. Window-type D. Phase-shift-type
- Transformers and Special Locations 7.a. Dry-type transformers are available in what configuration(s)?A. Single-phase or auto-phaseB. Poly-phase onlyC. Single- or poly-phaseD. Single-phase only7.b. How many separate and distinct electrical systems does an essential electrical system consist of?A. FiveB. ThreeC. FourD. Six
What two types of chime transformers for Class 2 systems are listed by UL? ___________________________ ___________________________
17.a. For commercial tests on transformers, direct current may be used for theA. induced-voltage test.B. ratio test.C. temperature test.D. polarity kick back test.17.b. A core-form three-phase delta-delta transformer can provide some service with one phase damaged ifthe damaged phase isA. grounded.B. disconnected and short-circuited.C. open-circuited.D. short-circuited.
9. Which grounding method is typically required of higher-voltage systems? A. Grounding through inductorsB. Grounding through a low amount of resistanceC. Grounding through a high-impedance device D. Grounding through surge arresters 10. Which term relates to the conductors connected to the output side of a separately derived system? A. Neutral conductorB. Transformer secondary conductorC. System conductor D. Derived phased conductor 11. If there's no service disconnect at a remotely supplied building, then the grounding electrode conductor and the equipment grounding conductor can be bonded together at a A. junction box.B. structural steel location. C. grounding electrode rod. D. water line. 12. In a DC system, the bonding jumper between the negative of the supply and ground is normally made at the source or at the A. first disconnecting means. B. first device on the supply. C. end of the DC line.D. entrance to the building. 13. Which of the following is a common raceway…
Discuss causes of insulation failures in high voltage engineering. High voltage engineering
Problem #2: A transformer is fed from a generator via a 5-cycle breaker. Generator reactance are: X"=18%, X'=25%, Xe=120%. A three-phase fault occurs at the load side of the breaker when the transformer was unloaded. Find: A)The sustained short circuit current in the breaker. B) Initial symmetrical rms current in the breaker. C) Maximum dc short circuit component in the breaker.
Three single-phase two-winding transformers, each rated 3kVA,220/110volts,60Hz, with a 0.10 per-unit leakage reactance, are connected as a three-phase extended autotransformer bank, as shown in Figure 3.36(c). The low-voltage winding has a 110 volt rating. (a) Draw the positive-sequence phasor diagram and show that the high-voltage winding has a 479.5 volt rating. (b) A three-phase load connected to the low-voltage terminals absorbs 6 kW at 110 volts and at 0.8 power factor lagging. Draw the per-unit impedance diagram and calculate the voltage and current at the high-voltage terminals. Assume positive-sequence operation.
CALCULATE REACTANCE( NEED ONLY HANDWRITTEN SOLUTION PLEASE OTHERWISE DOWNVOTE).

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The figure to the right identifies a 1-phase protection circuit. Identify the following components by circling them a. Relay b. CT c. PT d. Conductor leads e. Breaker Bus Figure 1 Name 3 different types of breakers