Answered: 2 In three phase star connected system…

2 In three phase star connected system the line voltage is measured between _____________ a. Y phase and Y phase b. Neutral and Neutral c. R phase and Neutral d. Phase and Phase

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 8.5MCQ

See similar textbooks

Related questions

Q: Q2. Consider the single-line diagram of the power system shown in Figure Q2. Equipment ratings are:…

A: In this question we need to find a per unit reactance after finding per unit value we need to draw a…

Q: Solve the circuit shown when V₁ = 10V, V₂ = 5V, R = 1990 when the diodes have linear models with Vj…

A: In this questionWe need to determine the current in the resistance R as shown the circuit. Given…

Q: 14.a. A typical 5-kV system is one with a phase-to-phase voltage of _______ volts. A. 2400 B. 12,470…

A: 14. a) For any electrical equipment, the voltage mentioned in the nameplate details is the Line-line…

Q: the block diagram for three phase transmission line system

A: Here we discuss about single line diagram of 3 phase transmission line. First one must understand…

Q: The positive or negative direction of DC voltage and current is referred to as __________.

A: The question is referred to as direction of DC voltage and current. The flow of current…

Q: 4. In a balanced three phase system the line voltage Vab =220cis(30°) volts and line current Ic =…

A: In this question, We need to determine the power of the Delta system. Power P= 3Vph Iph cos(Vph ^…

Q: Two point charges q,- ZuC and 92 - BuC are 30 cm apart from each other. Another charge q is placed…

A: The solution can be achieved as follows.

Q: A single-line diagram of a three-phase balanced system is given below. A bolted threephase short…

A: Given : VHg=21kv taking 22000kvA Base or we can say 22mvAM1 side= 11 kv M2 side =733 kvThevenin;s…

Q: What will be the fault current for a line fault in single-phase 3-wire system shown below? Load (1)…

A: The system is given as Here, we can see that once a fault occurs, the load will be short-circuited.…

Q: 8.a. What is the minimum ground ring conductor size? A. 4 AWG copper B. 2 AWG copper C. 10 AWG…

A: 8.a) When using the common grounding electrode conductor tap method for grounding services with…

Q: (Application Exercise) As shown in Figure 6, a three-phase, four-conductor line with a phase voltage…

A: To solve the problem presented in the figure, we'll need to calculate the following:Current for each…

Q: 13. _______ current attempts to return to the source over any available conductive path. A. Direct…

A: The power system has to transmit power from the generation side to the load side. For this purpose,…

Q: A/C units that operate at [Blank] or less may be cord-and-plug-connected. Select one: a.250V, 1…

A: AC units operate at a 230V , 50Hz, single phase supply.

Q: The ratings of a 3-phase circuit breaker are 1000 A. 500 MVA, 66 kV, 3 seconds. Then find (1) Rated…

Concept explainers

Single Phase AC Circuit

Alternating Current (AC) is a type of electric power in which the electric current changes, both in magnitude and direction, at regular intervals. This AC Circuits can deliver power in either a Single Phase system or a Three Phase system.

Question

2 In three phase star connected system the line voltage is measured between _____________ a. Y phase and Y phase b. Neutral and Neutral c. R phase and Neutral d. Phase and Phase

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Analysis of Single Phase and Three Phase System

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.

Similar questions

A single-line diagram of a three-phase balanced system is given below. A bolted threephase short circuit occurs at point P, when the operating voltage was 21 kV there. Calculate the rated interrupting current rating of circuit breaker A, D and E, both in per unit and Ampere value. Answer follow image.
From figure below, if 3 phase bolted fault occurs. Using Zbus method to choose a suitable rating of C.B's. Data are as follows: Gl: 100 MVA, 22 Kv,Xgi" = 0.2 pu G2: 100 MVA, 22 KV, X2"=0.15 pu TR1: 100 MVA, 22/220 KV, XTr1 =0.1 pu TR2: 100 MVA, 22/220 KV, XTR2 =0.1 pu CB TR1 1 ZTL-J50 ohm TR2 св св G2 3 Zload =(0.2 + j0.1) pu CB
Consider the single-Line diagram of a power system shown in Figure 3.42 with equipment ratings given: Generator G1: 50MVA,13.2kV,x=0.15p.u. Generator G2: 20MVA,13.8kV,x=0.15p.u. Three-phase -Y transformer T1: 80MVA,13.2/165YkV,X=0.1p.u. Three-phase Y- transformer T2: 40MVA,165Y/13.8kV,X=0.1p.u. Load: 40MVA,0.8PFlagging,operatingat150kV Choose a base of 100 MVA for the system and 132-kV base in the transmission-line circuit. Let the load be modeled as a parallel combination of resistance and inductance. Neglect transformer phase shifts. Draw a per-phase equivalent circuit of the system showing all impedances in per unit.
The subject is: Smart Grid Applications and Technologies
A 3-D power system experienced an unbalanced fault type had the following sequence voltages at the fault point: (a) (b) Vo = 0.1872180° p.u. V₁ = 0.50720⁰ p.u. V₂ = 0.32021800 p.u. Calculate the related phase components, Vabe at the fault point. Hence, by inspecting your results in (a), identify the type of fault.
8.a. What is the minimum ground ring conductor size?A. 4 AWG copperB. 2 AWG copperC. 10 AWG copperD. 6 AWG copper8.b. An ungrounded three-phase electrical system develops a fault on one of its lines to ground. Which of thefollowing will happen to the system at this time?A. The ground fault will heavily damage the system.B. A single pole of the circuit breaker will trip.C. Nothing will happen until a second ground fault occurs.D. All of the poles of the overcurrent protection device will open, shutting off all line-side power.
b) The one-line diagram for a simple power system is given in Figure 1(b). į. Draw the impedance diagram of the system. i. Construct the bus admittance matrix, Xeus and bus impedance matrix, Zous of the system. I. Evaluate the fault current, bus voltages and line current during the flow when a balanced three-phase fault occurs on bus 1. bus 1 bus 2 j65 N G G 25 MVA 25 MVA 13.8 kV 15% 13.2/69 kV 11% 25 MVA 69/13.2 kV 11% 15 MVA 13 kV 15% Figure 1(b) m
Figure 3.39 shows a oneline diagram of a system in which the three-phase generator is rated 300 MVA, 20 kV with a subtransient reactance of 0.2 per unit and with its neutral grounded through a 0.4- reactor. The transmission line is 64km long with a cries reactance of 0.5-/km. The three-phase transformer T1 is rated 350MVA.230/20kV with a leakage reactance of 0.1 per unit. Transformer T2 is composed of three single-phase transformers, each rated 100 MVA, 127/13.2kV with a leakage reactance of 0.1 per unit. Two 13.2kV motors M1 and M2 with a subtransient reactance of 0.2 per unit for each motor represent the load. M1 has a rated input of 200 MVA with its neutral grounded through a 0.4- current-limiting reactor, M2 has a rated input of 100 MVA with its neutral not connected to ground. Neglect phase shifts associated with the transformers. Choose the generator rating as base in the generator circuit and draw the positive-sequence reactance diagram showing all reactances in per unit.
Consider a single-phase electric system shown in Figure 3.33. Transformers are rated as follows: XY15MVA,13.8/138kV, leakage reactance 10 YZ15MVA,138/69kV, leakage reactance 8 With the base in circuit Y chosen as 15MVA,138kV determine the per-unit impedance of the 500 resistive load in circuit Z, referred to circuits Z, Y, and X. Neglecting magnetizing currents, transformer resistances, and line impedances, draw the impedance diagram in per unit.
8
Three-phase, 4-wire panelboards are usually constructed with an even number of spaces available for each phase; thus, the total number of spaces would be in increments of 6, such as 12, 18, 24, 30, 36, or 42. How many spaces would be available for the later addition of circuit breakers in panelboard P-1 after the panelboard has been equipped as scheduled?
X=2 Y=8