#10 10. Excitation losses in a transformer must be determined. When running the test, you should make surethat the secondary windingA. carries exactly the rated current.B. is open-circuited.C. is short-circuitedD. carries a higher current than the primary.11. The armature of a 100-kw 250-volt shunt-wound generator has a resistance of 0.02 ohm. When thegenerator is operated as a motor, what input voltage should be applied across the brushes to measure theno-load losses if the brush-contact IR drop is 2 volts?A. 240 voltsB. 248 voltsC. 260 voltsD. 252 volts

Losses in Transformer Ohmic loss Excitation or Core loss Hysteresis loss Eddy current loss…

10. Excitation losses in a transformer must be determined. When running the test, you should make sure that the secondary winding A. carries exactly the rated current. B. is open-circuited. C. is short-circuited D. carries a higher current than the primary. When the

10. Excitation losses in a transformer must be determined. When running the test, you should make sure that the secondary winding A. carries exactly the rated current. B. is open-circuited. C. is short-circuited D. carries a higher current than the primary. When the

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

Chapter10: System Protection

Section: Chapter Questions

Problem 10.27P

See similar textbooks

Related questions

Q: A voltage generator with vg(t) = 5 cos(2л x 10°t) V and internal impedance Zg= 50 2 is connected to…

A: Given below clear explanation

Q: Get the difference equation of the Direct form II system using Z-transform

A: Given

Q: A dynamic system is represented by the following equation: 4X(t) + 8 X(t) + 16 x(t) = sin(5t) The…

A: We need to find out natural frequency for given system .

Q: A silicon pn junction at zero bias has dopant concentration of N₁ = 3 x 10¹7cm-³ and №d= 4 x 10¹6…

Q: Temperature dependence of resistivity

Q: Ra +-WWW ea(t) J₁ = 4 kg-m² N₁ = 50 D₁ 8 N-m-s/rad OL(1) √₂ = 36 kg-m²) m²f T (N-m) 150 N₂ = 150 D₂…

Q: In the Radiolocation station of continuous radiation with symmetrical sawtooth FM (FMCW), the…

A: Given data Modulation frequency, FM=200 Hz Frequency deviation, fdev=150 kHz A detected target…

Q: There are 4 permutations: natural response and step response for both parallel and for series RLC…

A: From the given questions it is asked to solve first. 4 permutations of natural and step response…

Q: five-bit D/A converter has a current output. For a digital input of 10100, an output current of 10mA…

A: We need to find out analog output for given digital input .

Q: (a) Find the transfer functions H(s) = X( and He(s) = x(s). Y(s) (s) (b) Now set G(s) = 10. This is…

Q: A germanium P N diode has the following properties: Tp = Tn = 10 μs, N₁ = 10¹⁹ cm³, ND = 10¹6 cm³,…

A: As per the guidelines of bartleby i need to answer first three subparts only so kindly repost other…

Q: Two long parallel conductors carry 200 A. If the conductors are separated by 40 mm, the force per…

A: Given, current in both conductors, I1=I2=200 A The separation between the conductors,d=40×10-3 m

Q: A causal LTI system has transfer function 2π (s² - 6s+25) (s² + 6s + 25) (s+2) H(s) = (a) Sketch the…

A: As per the guidelines of Bartley we supposed to answer first three subpart only for solution of…

Q: Find the transfer function, G(s)=0,(s)/T(s), for the rotational mechanical system shown below.

A: The mechanical system can be drawn as

Q: -1 Operational amplifer (Op-amp) is a solid-state device that provides high voltage output with…

A: 1a) We need to sketch the op-amp transfer characteristics that show the linear and non-linear…

Q: It's so hard to read, I need a handwrite version

A: We are not allowed to provide handwritten solutions. Hence, providing you typed solution shown…

Q: 1. For the G(s), make a plot of the log magnitude and the phase, using log-frequency in rad/s as the…

Q: Evaluate the DTFS coefficients of x[n] = {… …. … , -1, 0, 1(origin), 0, -1, 0, 1, 0, … …. …}.

A: Given, x[n] = {… …. … , -1, 0, 1(origin), 0, -1, 0, 1, 0, … …. …} We need to evaluate the DTFS…

Q: A charged particle moves with a uniform velocity 2.4 ŷ (m/s) in a region where E = 202 (V/m) and B =…

A: Given- A charged particle moves with uniform velocity, v→=2.4 y^ ms Electric filed, E→=20 z^ Vm.…

Q: A shunt generator delivers 180 A at a terminal voltage of 250 V. The armature resistance and shunt…

Q: Find Zeq 1.a 1200 71002 MM- 1502 1602 15Q -mor-

Q: (a) what poles generate the steady-state response? (b) what poles generate the transcient response?…

A: I have to give answer of these two parts. as we know that the poles decide the behaviour of any…

Q: a) If the carrier signal is 10V 100kHZ, the information signal is 5V 3kHZ, an AM Modulator is passed…

A: As per Bartleby guideline we need to answer the first three questions only. Kindly repost the rest…

Q: ww R1 R=10 Ohm V1 U=150 V. S1- b. What is the current through R₁7 4. Finally the switch is…

A: As per the guidelines of Bartley we supposed to answer first three subpart only for solution of…

Q: In this ideal op-amp circuit, it is given: R1 = 8 ohms, R2 = 98 ohms, R3 = 6 ohms, R4 = 21 ohms, and…

A: Given: In this question, the given details are, The given ideal op-amp circuit is, The given values…

Q: 2. Determine (a) currents 1₁, 12, 13, and 14 and (b) the voltage across the current source. +12V 6…

Q: In the figure, & = 90.9 V, R₁ = 10.102, R₂ = 21.90, R3 = 32.8 2, and L = 2.84 H. Immediately after…

Q: Q/1/ Single phase half-wave uncontrolled rectifier. The battery charger circuit that is used to…

A: Given, The supply voltage, V=250 V The supply frequency, fs=50 Hz Limiting resistor, R=10 Ω

Q: RB 9 Vcc IB B + Rc VBE Vcc E Ic + VCE - Fig.4 A loadline is drawn on the BJT transistor…

Q: If the roots of the characteristic equation of an RLC circuit are -2 and -3, the response is: Select…

A: Given roots of characteristics equation are -2 and -3 Let, S1=-2S2=-3

Q: Determine the Total Response when x(n)=4(0.5)nu(n)+3(0.75)nu(n) using the Z-transform, given the…

A: Given below cear explanation

Q: A short three-phase transmission line with the following specifications 200 kV, 100 MVA, 60 Hz, is…

Q: Find current I1 using superposition theorem

A: Given below clear explanation

Q: Q3 - For the simple passive filter shown, find the system equation. Hence, given R = 1, L = 3, and C…

A: We need to analyse the given second order system .

Q: Q1. a) For the circuit shown in figure 1, determine the following: i) The total resistance ii) The…

Q: 1. Determine the appropriate value of frequency for a square wave generator (in Hz) to measure the…

A: In this question, We need to determine the frequency of the Series RC circuit to measure the time…

Q: 8. A 2-pole d.c shunt motor operating from a 200 V supply takes a full-load current of 35 A, the no-…

Q: solve for io(t)

A: Given: A network, To find: Value of i0(t).

Q: The transfer function H(F) of a filter is shown below. The input signal is given by : Vin (t) = 4+3…

A: Given data The expression for the input signal is Vint=4+3cos104πt-30°+5sin24000πt The transfer…

Q: 2. The sequence reactances of a three phase alternator are X1 = x2 = 0.15 and Xo = 0.05 pu, based on…

Q: 1. Joint Induction Circuit If, V₁ = 2020⁰ (A=5 & B=4) and DI (B 120) AH is(3) w = 15 rad/s 36 2H…

Q: 36. Assuming an operating frequency of 40 rad/s for the circuit shown in Fig. 11.40, and a load…

Q: 7. A d.c. series motor on full-load takes 50 A from 230 V d.c. mains. The total resistance of the…

A: Given: The load current is 50 A The voltage is 230 V the resistance of the motor is 0.22 ohms The…

Q: 2. Find the transfer function, G(s) = 03 (s)/T(s) for the rotational system shown in the figure.…

Q: 26 m 0.5 F + 6.364 Vms f = 318.31 mHz 0.5 H mn 3/2 Is 252 io(+)

Q: For the given circuit, find vo() when (0) = 6 A and v(t) = OV. 252 v(t) i(t) 0.4 H m www 352 y (1)…

Q: On no-load, a shunt motor takes 5 A at 250 V, the resistances of the field and armature circuits are…

A: The current is 5 A The voltage is 250 VThe resistance is 250 ohm and ohm in field and armature…

Q: Find the regulation

Q: A load supplied by a 3-wire d.c. distribution system takes a current of 600 A on the +ve side and…

A: Given data: The current = 600 A on the +ve side The current = 480 A on the -ve side The resistance,…

Q: Consider the magnetic circuit shown in Figure 1 below. The material is steel, and the magnetization…

Concept explainers

Single Phase Transformer

A single-phase transformer is a type of power transformer. It is an electrical device that accepts converts the single phase alternating power into single phase alternating power. In this power conversion the voltage is stepped up or down. If the voltage is stepped up, the current will be stepped down and if the voltage is stepped down, the current will be stepped up.

Question

#10

10. Excitation losses in a transformer must be determined. When running the test, you should make sure
that the secondary winding
A. carries exactly the rated current.
B. is open-circuited.
C. is short-circuited
D. carries a higher current than the primary.
11. The armature of a 100-kw 250-volt shunt-wound generator has a resistance of 0.02 ohm. When the
generator is operated as a motor, what input voltage should be applied across the brushes to measure the
no-load losses if the brush-contact IR drop is 2 volts?
A. 240 volts
B. 248 volts
C. 260 volts
D. 252 volts

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

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

13.a. A bridge circuit is used to measure the loss of larger transformers because the circuitA. promotes safety.B. eliminates calculations.C. increases measuring convenience.D. improves measurement accuracy.13.b. A synchronous machine is run as an unloaded motor. If a low voltage is supplied at the ratedfrequency, and if the full-load armature current flows, a test is being run to determine theA. windage loss.B. I²R loss.C. stray-load loss.D. core loss.
The label values of the single-phase transformer whose electrical equivalent circuit is given below are 20 kVA, 15400V / 240V, 50 Hz. This transformer Calculate what is required below. a. What is the value of the active power measured in the short circuit test? b. What is the value of the active power measured in the idle test? c. Voltage regulation was found to be 0.1% at 0.8 back power factor. Accordingly, using any method you want Find out how many kVA the transformer draws from the network (primary apparent power).
In the distribution transformer;In the transformer used for the distribution of electricity to the houses, 3.3 kilovolts enters and 400 volts come out. When we make the phase-neutral calculation, that is, when we divide it by √3, we get 230 volts and 220 volts coming to the sockets. Where does the remaining 10 volts go? (Can you explain with figure) is this about 30 degree phase shift?
1).What factors should be considered when selecting the plug setting of an overcurrent relay. 2) Describe the principle of operation of a directional over-current relay. 3).What are the factors that should be considered when implementing a biased differential protection scheme for a star/delta transformer. Draw a single line diagram to show the connections.
A 2.3 kV, three phase, 50 Hz,SCIM gas a starting torque of 640 Nm, And starting current of 600 A. What will be the per unit tapping of auto transformer to reduce the starting Current from mains to 150 A Also find the corresponding starting torque.
draw a circuit digram of testing of transformer oil ?
A 3,000-kw 750-volt d-c 60-cycle six-phase synchronous converter is fed from a three-phase 23,000-volt high-voltage line through &bank of three transformers that are connected in Δ on the high side and diametrical on the low side. (A) Make a winding diagram showing all connections for the problem. Assuming an efficiency and power factor of 96percent and 0.95, respectively, calculate: (B) the direct-current output; (C) the a-c voltage between adjacent slip rings.
a)Please explain the connection methods of Current and Voltage Transformers? b) Control the DC motor speed and direction. Draw the circuit.
a) With neat diagram explain the principle of operation of Induction type energy meter. ? b) Discuss the potential transformer with neat schematic diagram. ?
Fill in the blanks The short circuit test of a transformer gives information of _______?
what are the advantages and disadvantages of single phase dry-type power transformer when used with CNC machine, interms safety concern? please used the clearly suitable clearly labelled diagrams
What is auto transformer and name its one disadvantage?