Answered: It is possible to connect A-Y…

Engineering

Electrical Engineering

It is possible to connect A-Y transformer in parallel with another A-Y transformer? True O False

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

Chapter3: Power Transformers

Section: Chapter Questions

Problem 3.4MCQ: An ideal transformer has no real or reactive power loss. (a) True (b) False

See similar textbooks

Related questions

Q: INVESTIGATE the CT ratio and spill current setting of differential protection of transformer for the…

A: Transformer is delta star 36/16 kV 11 MVA CT secondary current=1A

Q: The operated distfibution transformer has constant iron * and copper losses? False True

A: the operated distribution transformer has constant iron and copper losses true or false

Q: True or False? There are fewer number of turns in Y-Y transformer required than in delta-delta…

Q: If the open circuit voltage is 239V and the full load voltage is 205V, then the percentage…

A: Voltage Regulation is nothing but ratio of drop in voltage from no load to full load to full load…

Q: ngle phase transformer has arated secondary voltage of (230v).when Loaded by a purely inductive load…

A: TRANSFORMER: The transformer transfers power from one circuit to another circuit without a change…

Q: As given in the figure, the primary side of an ideal transformer is fed from a 400 Volt source with…

Q: For any transformer, one can prove that Il*N1/fl=I2*N2*f2, where fl and f2 denote the frequencies of…

Q: The point of common coupling always located at the secondary side of the service transformer. True…

A: Service transformer : A transformer that steps down utility-supplied voltages to voltages that used…

Q: Primary of Current Transformer is having large number of turns. Select one: O True False

A: A current transformer is used in the power system to measure current in the transmission line.

Q: The apparent power in primary and secondary side of the distribution transformer remains the same at…

A: Given Apparent power is same in both primary and secondary of transformers Ture or false

Q: The parameters of the transformer equivalent circuit are given bellow, Primary winding turns =1150.…

Q: The step up transformer has transformation ratio less than 1 Select one: O True False

A: The transformation ratio is defined as the ratio of secondary voltage to primary voltage. It is…

Q: During short-circuit test of a transformer, the core loss of a transformer is negligible. Select…

A: The purpose of Short circuit test is to find total resistance and reactance of transformer. It used…

Q: The burden of current transformer is specified as the ratio of primary to secondary turns of the…

Q: The transformer will operate at its minimum efficiency when the variable loss equals the fixed loss.…

Q: When the similar terminals of high voltage and low voltage windings of a transformers are diagonally…

A: Transformer is a static electrical device which transfers power from one circuit to another circuit…

Q: 100-kVA 6000/230-V single-phase transformer has the following resistances and mctances: R, = 4.320;…

Q: (c) In a 25 KVA, 1000/400 V, 1- o transformer, the core loss and full load copper losses are 200 W…

A: Efficiency = (output power/input power )×100. Input power = output power + iron losses + copper…

Q: Design a 150 VA, 24OV/48V-12V single phase transformer core by using following lamination.…

A: Given, Rating of single phase transformer is 150 VA 240V48V-12V Cross sectional area…

Q: Hw2.1-3: Derive the following: ing. The shift angle of line voltages for delta/star transformer…

A: In a delta-Star connected transformer, the primary is connected in delta and the secondary is…

Q: he apparent power in primary and secondary side of the distribution transformer remains the same at…

A: Given In transformer apparent power remains same on primary and secondary side.

Q: Explain the importance of transformer and basic insulation level in the distribution system. Justify…

A: The Basic Insulation Level (BIL) of a transformer is a method of expressing the voltage surge the…

Q: A 10 kVA, 1000/500 V single phase transformer has R1 = 26Ω,X1 =6Ω, R2 = 0.10Ω and X2 = 0.24Ω .…

Q: An ideal transformer can be used as impedance transformer. Select one :- True. False

A: We need to tell about given statement

Q: Primary and secondary series impedance parameters of a single phase transformer of 220V/110V…

Q: For the 11000/400V, AY 3-ph transformer, if the line current in the secondary is 500A calculate the…

Q: Illustrate the equivalent circuit of this transformer referred to the high voltage side of the…

Q: The burden of current transformer is specified as the ratio of primary to secondary turns of the…

A: Need to find true false

Q: The magnetizing equivalent circuit of transformer can be found by open circuit test O True O False

A: Given: Transformer: Transformer is a static device used for the transfer of voltage and current from…

Q: 2. (a) For the following 3-phase transformer, the primary side is given as Y-connection. Draw the…

A: Given primary side of transformer,

Q: Q1. what are the advantages of transferring parameters from 1 side of transformer to other side?…

A: Advantages of transferring parameters from 1 side of transformer to other side- 1.Easy to calculate…

Q: A single phase, 250 kVA, 10kV/2kV 60 Hz transformer has the following equivalent circuit parameters…

A: Given Single phase transformer 250 KVA,10 Kv/2Kv 60 HzRc(HV)=60.2 kΩ Xm(HV)=18.44…

Q: 1) Consider a three-phase transformer with a rating of 700 MVA and a secondary voltage of 145 kV. a)…

A: Given Three phase transformer withS=700 MVAVs=145 kV

Q: For any transformer, one can prove that Il*N1/fl=12*N2*f2, where fl and f2 denote the frequencies of…

A: Transformer is an static device which convert energy from one circuit to other circuit using primary…

Q: short circuit test of a single phase transformer, the ammeter gives us rated current. Select one:…

A: We need to tell about the given statement is true or false

Q: 6. A 5,000-kVA, 3-phase transformer, 6.6/33-kV, NY, has a no-load loss of 15 kV and a full-load loss…

A: In this question 3 phase transformer delta -star is given....We have to find out primary voltage…

Q: True or false? An ideal transformer has no real or reactive power loss.

Q: Primary of Current Transformer is having less number of turns. Select one: True False

A: In this question , we will define turns in primary of current transformer..

Q: Transformer construction H.W What is the Transformer construction? Give me types of transformer?

A: It is required to discuss about the transformer construction and also mentioned some types of…

Q: When two winding transformer is not connected to the load, primary balancing current flows in the…

Q: An ideal transformer can be used as impedance transformer. Select one :- True. False. Please…

A: Yes, the ideal transformer can be used as an impedance transformer and the reason behind this is…

Q: 1. An ideal transformer with N = 2400 and N2 = 400 is connected with an impedance Z2 across winding…

Q: Solved Problems: Single-Phase Transformers Problem 1 A 19.2 KVA, 19200/480-V, 60 Hz, single-phase…

Q: For the following 3-phase transformer, the primary side is given as Y-connection. Draw the secondary…

A: Given 3-phase transformer having primary side in star connection as,

Q: 6. A 300 kVA, single-phase transformer is designed to have a resistance of 1-5 % and maximum…

A: In this question we need to find a efficiency of transformer at given loading conditions.

Concept explainers

Three-Phase Transformers

Three-segment transformers are a type of transformer used to transform voltages of electrical systems into three ranges. Two type transformers are shell-type transformer and core type transformer. In brief, it could be described because of the exquisite kinds of configurations.

Transformer

Ever since electricity has been created, people have started using it in its entirety. We see many types of Transformers in the neighborhoods. Some are smaller in size and some are very large. They are used according to their requirements. Many of us have seen the electrical transformer but they do not know what work they are engaged in.

Question

It is possible to connect A-Y
transformer in parallel with
another A-Y transformer?
True
False

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 1given

VIEW

Step 2 solution

VIEW

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

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

For an ideal transformer, the efficiency is (a) 0 (b) 100 (c) 50
(a) An ideal single-phase two-winding transformer with turns ratio at=N1/N2 is connected with a series impedance Z2 across winding 2. If one wants to replace Z2, with a series impedance Z1 across winding 1 and keep the terminal behavior of the two circuits to be identical, find Z1 in terms of Z2. (b) Would the above result be true if instead of a series impedance there is a shunt impedance? (c) Can one refer a ladder network on the secondary (2) side to the primary (1) side simply by multiplying every impedance byat2 ?
How many transformers are needed to make an open-delta connection?
All values of a transformer are proportional to its __________________ ___________________.
A single-phase step-down transformer is rated 13MVA,66kV/11.5kV. With the 11.5 kV winding short-circuited, rated current flows when the voltage applied to the primary is 5.5 kV. The power input is read as 100 kW. Determine Req1andXeq1 in ohms referred to the high-voltage winding.
For a short-circuit test on a 2-winding transformer, with one winding shorted, can you apply the rated voltage on the other winding? (a) Yes (b) No
An ideal transformer has no real or reactive power loss. (a) True (b) False
Rework Problem 3.14 if the transformer is delivering rated load at rated secondary voltage and at (a) unity power factor, (b) 0.8 power factor leading. Compare the results with those of Problem 3.14. -
A single-phase, 50-kVA,2400/240-V,60-Hz distribution transformer has the following parameters: Resistance of the 2400-V winding: R1=0.75 Resistance of the 240-V winding: R2=0.0075 Leakage reactance of the 2400-V winding: X1=1.0 Leakage reactance of the 240-V winding: X2=0.01 Exciting admittance on the 240-V side =0.003j0.02S (a) Draw the equivalent circuit referred to the high-voltage side of the transformer. (b) Draw the equivalent circuit referred to the low-voltage side of the transformer. Show the numerical values of impedances on the equivalent circuits.
The ratings of a three-phase three-winding transformer are Primary(1): Y connected 66kV,15MVA Secondary (2): Y connected, 13.2kV,10MVA Tertiary (3): A connected, 2.3kV,5MVA Neglecting winding resistances and exciting current, the per-unit leakage reactances are X12=0.08 on a 15-MVA,66-kV base X13=0.10 on a 15-MVA,66-kV base X23=0.09 on a 10-MVA,13.2-kV base (a) Determine the per-unit reactances X1,X2,X3 of the equivalent circuit on a 15-MVA,66-kV base at the primary terminals. (b) Purely resistive loads of 7.5 MW at 13.2 kV and 5 MW at 2.3kV are connected to the secondary and tertiary sides of the transformer, respectively. Draw the per- unit impedance diagram, showing the per-unit impedances on a 15-MVA,66-kV base at the primary terminals.
An infinite bus, which is a constant voltage source, is connected to the primary of the three-winding transformer of Problem 3.53. A 7.5-MVA,13.2-kV synchronous motor with a sub transient reactance of 0.2 per unit is connected to the transformer secondary. A5-MW,2.3-kV three-phase resistive load is connected to the tertiary Choosing a base of 66 kV and 15 MVA in the primary, draw the impedance diagram of the system showing per-unit impedances. Neglect transformer exciting current, phase shifts, and all resistances except the resistive load.
In order to avoid difficulties with third-harmonic exciting current, which three-phase transformer connection is seldom used for step-up transformers between a generator and a transmission line in power systems. (a) Y- (b) -Y (c) Y-Y