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

Q: Each line of a 3-phase system is suspended by a string of 3 similar insulators. If the voltage…

A: given voltage across string unit=17.5kv no of insulator=3 shunt capacitance 1/10 th of the…

Q: Consider the three-phase four-wire 416-V secondary system with balanced per-phase loads at A, B, and…

A: Given three phase four wire system

Q: 1. How do you measure three phase line currents by using two current transformers? Draw the…

A: The diagram for the three-phase system and the two current transformers are drawn below, Consider…

Q: The recommended limit of voltage drop on a power circuit for a single-phase supply as per IEE Wiring…

A: The explanation is as follows.

Q: A dc two line distributor AB 600 metre long is fed at 440 V from substation A and at 430 V from…

A:

Q: Which among the following faults does mostly happen in 3-phase power systems? Single line to ground…

A: As 3 phase fault in power system are, 1. Single Line to Ground fault 2. Three phase short circuit 3.…

Q: For the same voltage and current produced by a three phase and single phase source, the power…

A: In this question,  We need to choose the correct options Choose the given Statment is true or false?…

Q: draw and explain service connection wiring diagram for 1 phase and 3 phase installation

A: Rules For Wiring : The current Rating of wire should be 1.5 times the load current Required For…

Q: Each line of a 3-phase system is suspended by a string of 3 similar insulators. If the voltage…

A: The solution can be achieved as follows.

Q: Choose how to measure the line voltage VRY in three phase star connected system?  a. Between R…

A: Line voltages are measured between two lines

Q: Q5. Using neat circuit diagrams explain the working of following: (i) Earth fault/leakage protection…

A: (i) Earth fault/leakage protection of transformer normally having of a partial breakdown of winding…

Q: 1.a. To create usable voltages for 120-volt loads, _______ are usually installed. A. photovoltaic…

A: Answer 1.a) To create usable voltages for 120-volt loads, Transformer are usually installed.…

Q: Determine the current in the neutral conductor and the current in each line conductor (i.e., IR, IB…

A: A 3-Φ, four-wire system is shown below: The phase voltage and the line voltage in a star…

Q: In a power system the fault is occurred in all the lines and to the ground without fault impedance…

A: all the line and to the ground fault is symmetrical fault.

Q: 8.In a line-by-line failure we can expect Immersive reader A) Currents exist in the ground…

A:

Q: In case of unbalanced 3-Φ, 4-wire system % voltage drop is… not possible to estimate same as in…

A: it should estimate for each phase .

Q: ) Choose how to measure the R phase voltage in three phase star connected system?    a. Between…

A: Phase voltage is measured between one phase and neutral

Q: 9. Which grounding method is typically required of higher-voltage systems? A. Grounding through…

A: In this question,  We need to choose the correct options Which grounding method is typically…

Q: When connecting a multiwire (3-wire) circuit to a single phase panel, one ungrounded conductor must…

A: This is related to 3 wire system. Fill the blank    When connecting a multi wire (3-wire) circuit to…

Q: 1) write down the factors considered for selection of conductor for overhead LT distribution line.

A: We have to write the factors considered for selection of conductor for overhead LT(Line…

Q: While multi-wire branch circuits are sometimes used in residential wiring, they present the problem

A: A multi wire branch circuit generally means that there are two ungrounded or simply live conductors…

Q: How many outlets can be connected to a lighting line in a single-phase system

A: Choose the correct option How many outlets can be connected to a lighting line in a single-phase…

Q: In an unbalanced three phase system, having balanced supply phase voltages are separated by 120°…

A: The objective is to determine the correct option.

Q: A system of three currents equal in magnitude and having zero phase displacement, these are called.…

A: Using the symmetrical components, any set of an unbalanced three-phase system can be resolved in the…

Q: The line-to-line voltages in an unbalanced three-phase

A:

Q: Three phase transformer having supply voltage 15 Kv (Line voltage). Determine the secondary phase…

A: In the Delta type of winding connection, the line voltage and phase voltage both are the same but…

Q: Determine the percent voltage drop along a 480V, three-phase feeder, 100m in length, consisting of…

A: It is given that: V=480 VI=300∠-30° Ωl=100 m

Q: How to measure the B phase voltage in three phase star connected system? a. Between B phase and R…

A: Phase voltage is the voltage between any line wire and neutral wire, so here the phase voltage of B…

Q: To distribute Power from 1 MW three phase power source to main distribution board which is 80 metre…

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

Q: For a star connected three phase balanced system, ________________ a. None of these b. Phase voltage…

A: For a star connected three phase balanced system

Q: What happens when the sag in an overhead transmission line increases? How the sag varies when the…

A: The vertical distance between the points of consecutive supports and the lowest point of the…

Q: The sequence component line-to-line voltages of a three-phase, 4-wire system are the following: Vab0…

A:

Q: The fault current level of a circuit breaker used in a transmission line with phase voltage 2.2 kV…

A:

Q: Q3: Derive the relationship between positive and negative sequence components when single phasing…

A: Single phasing Three phase supply is fed to a load e.g. induction motor When one of the phase is get…

Q: How many single phase sub circuits can be connected to 3 phase 12-way Distribution board?

A: given that it is a 3 phase 12- way distribution board and we need to find the no of single phase sub…

Q: A set of conductors is used to supply residential unit with a total load current of 60 A at a…

A:

Q: d) Prepare a list of material and estimate the cost for providing service connection to a single…

A: single phase service connection to building Length of service main =20 m Total load of installation…

Q: 2-What is the relationship between phase and line quantities in balanced star and delta connections…

A: Let us consider a balance 3 phase system in which a balance 3 phase load connected in star and delta…

Q: Question 2 continued () Calculate in polar form the line-to-neutral voltages corresponding to the…

A: Given Parameters are: X=2, Y=8 Va0=1X0∠0oV=120∠0oV Va1=1Y0∠45oV=180∠45oV Va2=1Y0∠1X0oV=180∠120oV…

Q: Describe an unbalanced or asymmetrical of three-phase electrical system. i) State two (2) effects of…

A: The explanation is as follows.

Q: Draw the reactance diagram of the given one-line diagram below marked in appropriate per unit…

A:

Q: Each track is a fi model with a series impedance and a sequence for track C as shown in the table…

A:

Q: In a 3-phase Overhead System, each line is suspended by a string of 3 Insulators. The voltage across…

A: Given voltage across top and middle units, using this we will find Ratio of capacitance, string…

Q: A three-phase system is said to be more economical than an equivalent single-phase two-phase system…

A: Mainly speaking about 3phase system, it initially requires huge cost but after construction, the…

Q: Q2 A three-phase power system is shown in Figure Q2. The data for this system is given in Table Q2.…

A: The given three-phase power system is shown below,

Q: In the shown below power system, both generators G1 and G2 emf's are equal. All the system data are…

A:

Q: An existing single phase ac system comprising of two overhead conductors is to be converted into 3…

A: An existing single phase ac system comprising of two overhead conductors is to be converted into 3…

Q: On a 120/240 V, single-phase, three-wire system, identify the following: a. Voltage between one…

A:

Q: In a 3-phase, 4 wire unbalanced system, the current in neutral wire is 18 A. The magnitude of zero…

A: Given a 3-phase, 4 wire unbalanced system having, The current in neutral wire, IN=18 A

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.