Two shunt generators with an armature resistance and field resistance of 0.022 and 402, respectively, runs in parallel and supply a load of 4500 Amperes. The emf's are 215 volts and 230 volts. Calculate the bus bar voltage of each machine. a. 90V b. 445V c. 222.50V d. 177.323V

Two shunt generators with an armature resistance and field resistance of 0.022 and 402, respectively, runs in parallel and supply a load of 4500 Amperes. The emf's are 215 volts and 230 volts. Calculate the bus bar voltage of each machine. a. 90V b. 445V c. 222.50V d. 177.323V

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

See similar textbooks

Related questions

Q: 10. A D.C series motor hoists a load at 4 m/sec while taking 30 A at 300 V from D.C mains. The total…

A: Basic concept :- We know that N ∝ (E / Φ) I.e. speed is inversely proportional to flux which means…

Q: The machine has a resistance of 0.25 ohm and is connected ulate the e.m.f. Generated when it runs as…

A: Resistance (R) = 0.25 ohm Voltage (V) = 300 V Ia = 100 A Ia = 80 A We have to calculate the e.m.f.…

Q: A shunt generator delivers 45 Amperes of current to a load at 220 volts at an efficiency of 86%. The…

Q: A D.C series motor hoists a load at 4 m/sec while taking 30 A at 300 V from D.C mains. The total…

Q: Two 220V generators operate in parallel. One machine has a terminal voltage of 270 V on no-load and…

Q: 188. A DC shunt generator supplies 450 A at 230 V. The resistances of shunt field and armature are…

A: Given a DC shunt generator with, Supplied armature current, Ia=450 A. Terminal voltage, Vt=230 V.…

Q: A- A d.c. series motor draws 22 A from a 240 V line while running at 840 rpm. It has an armature…

Q: 1. The armature of D.C. generator is laminated to (a) Reduce the bulk (b) Provide the bulk (c)…

Q: Two dc generators are connected to a common load. Generator 1 has armature emf of 250 V and armature…

A: Given, Two DC generator are connected to a common load, Generator 1 has, EMF, E1=250 V Armature…

Q: 2. A 25 kW shunt machine having an Armature circuit Resistance of 0.4 2 and a filed resistance of…

A: In this dc machine is given..We have to find out efficiency when machine acts as generator and…

Q: 4) A dc. ahunt machine while running as generator develops a voltage of 240 V at 1000 rp.m. on…

A: In this question we will find speed and efficiency of motor with given data....

Q: A 230 V dc machine has an emf constant and . The field is separately excited and produces 0.01 Wb…

Q: A shunt generator delivers 450A at 230V and the armature resistance is 0.03 ohms. Calculate the…

A: In this question We need to determine the shunt field resistance if generated emf E= 243.6V…

Q: 3. Two de generators each having linear characteristics that operate in parallel. One machine has a…

A: In the question, find the current supplied by each generator and also power by each generator? If…

Q: The overall efficiency

Q: A shunt generator delivers 45 Amperes of current to a load at 220 volts at an efficiency of 86%. The…

A: From given input power and efficiency calculate armature resistance and shunt field winding losses.…

Q: h a labelled diagram of any DC machine Discuss it part

A: A self-excited DC shunt motor, also known as a shunt wound DC motor, is a form of self-excited DC…

Q: 8. The armature and shunt field resistance of a 50-kW, 220 V shunt generator is 0.026 ohm and 52…

A: load current = load powerterminal voltage = 50000220 =…

Q: A 240 V series lift motor has resistance of 0.2 ohm. At the speed of 1800 r.p.m. it takes 40 A. Find…

Q: 10. Two identical 5 kW, 220 V, 24 A dc shunt machines are to be used as the gene- rator and motor in…

A: (a) The maximum and minimum generator field currents required are 2 A and 2 A respectively. (b) The…

Q: 2. Two dc shunt generators each having an armature resistance of 0.02 ohms and a field resistance of…

Q: A DC machine can run either as a ______ or as a generator.

A: In this answer we will understand what is a machine and the types of a machine and then we will try…

Q: A 230 V dc shunt generator delivers 150A with friction loss of 1200W. The armature shunt field…

Q: a) How laminated core of electrical machines reduces the iron losses?

A: NOTE :- We’ll answer the first question since the exact one wasn’t specified. Please submit a new…

Q: 2.A. When machine losses are determined by the retardation method, it is necessary to know the…

A: 1) Retardation test is also known as running down test. This is efficient method to find out stray…

Q: a) A 12 pole dc generator has a simple wave wound armature containing 3000 conductors. If the flux…

A: Since you have asked multiple questions in a single request, we will be answering only the 1st…

Q: A shunt generator delivers 45 Amperes of current to a load at 220 volts at an efficiency of 86%. The…

Q: A self-excited. DC shunt generator is rated at 22 kW, 220 V at 1800 rpm. The following data are…

A: We are authorized to answer three subparts at a time. Since you have not mentioned which part you…

Q: 2. A six-pole d.c. generator having a lap-connected arma winding is required to give a terminal…

A: The solution can be achieved as follows.

Q: prove the formula of generated voltage of dc machine

A: The derivation is as follows.

Q: Two shunt generators each with an armature resistance of 0.04ohms and 0.05ohms, respectively. Their…

A: In this question, Two generator are connected in parallel, armature resistance of 0.04ohms and…

Q: The armature of a d.c. machine has a resistance of 0.25 ohm and is connected to a 300V supply.…

A: As per the question, it is given that Resistance = 0.25 ohm Voltage = 300 V We have to calculate the…

Q: Q-A 250 V dc shunt machine has armature circuit resistance of 0.60 and field circuit resistance of…

A: Given- Terminal voltage VL=250 V, Armature resistance Ra=0.6 Ω, Field resistance Rf=125 Ω, Line…

Q: A3 In lap wound D. C machine , number of parallel paths is equal to A 6 pole wave-wound motor is…

Q: Indicate whether the following - statement are true or false

A: in the dc machine the emf can be calculated using the following equation E = ∅ZPN60 A

Q: Six generators are operating in parallel supply a total current of 3500 A. Each machine has a field…

A: In this question we need to find the load current share by each generator.

Q: Two shunt generators are connected in parallel to supply a current of 1500A. Each machine has a…

Q: 2. A 15 kW shunt machine having an Armature circuit Resistance of 0.35 and a filed resistance of…

Q: The armature of a shunt generator has 0.05 ohm effective resistance. Each brush has an effective…

A: It is given that: Ra=0.05 ΩRb=2×0.01 Ω=0.02 ΩVt=100 VIL=40 A

Q: A 220 V dc machine has an armature resistance of 1ohm if the full load current is 20 A, the…

A: Armature induced EMF=Terminal voltage ± drop in armature resistance drop in armature…

Q: The DC shunt generator with the terminal voltage 350 V, armature drop 6 V and the total brush drop 4…

A: A dc shunt generator V=350V Armature drop=6v Brush drop= 4v

Q: The armature of a d.c. The machine has a resistance of 0.25 ohm and is connected to a 300V supply.…

Concept explainers

DC Generator

An electromechanical machine which converts input mechanical energy to respective output electric energy is called a generator.

Question

Two shunt generators with an armature resistance and field resistance of 0.022 and 402,
respectively, runs in parallel and supply a load of 4500 Amperes. The emf's are 215 volts
and 230 volts. Calculate the bus bar voltage of each machine.
a. 90V
b. 445V
c. 222.50V
d. 177.323V

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

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

10. Design the logic circuit that obtains the relative magnitude of two binary numbers A1A0 and B1B0. Use an appropriate decoder and OR gates
7. A 4-pole, d.c. shunt motor has a flux per pole of 0.04 Wb and the armature is lap-wound with 720 conductors. The shunt field resistance is 240 Ω and the armature resistance is 0.2 Ω. Brush contact drop is 1V per brush. Determine the speed of the machine when running (a) as a motor taking 60 A and (b) as a generator supplying 120 A. The terminal voltage in each case is 480 V.
Two shunt generators with an armature resistance and field resistance of 0.022 and 402, respectively, runs in parallel and supply a load of 4500 Amperes. The emf's are 215 volts and 230 volts. Calculate the bus bar voltage of each machine. What is the output of each machine in KW? a. 33.248, 46.547 b. 332.478, 465.470 c. 330.478, 465.470 d. 332.478, 460.470
The armature winding resistance of a long shunt connected DC generator is 0.4ohm, the resistances of the shunt and serial field windings are 125 ohms and 0.1 ohms, respectively. While the generator supplies 8KW of power to the load it feeds, which is the voltage it produces since the output voltage is 250V?
If the machine is running at 1500 r.p.m. and the armature has 16 conductors per each slot. Assume that the generated voltage in each conductor is 3 volts and each one can carry a full load current of 2A (the machine is separately excited). Determine: The terminal voltages on no-load. The output current on full-load. The required flux per pole. viii) The power developed by the armature on full load and then; v) vi) vii)
(B)-ndicate whether the following statements are true or false and correct the faise statements. -When a series d.c. motor is operate without load, the armature will not run. The strength of magnetic field in d.c. shunt generator can be varied by varying the polarity of the field poles The main disadvantage of series generators is Output voltage varies as the Toad varies There is no output from the transformer under short-circuit conditions
Two de generators each having linear characteristics that operate in parallel. One machine has a terminal voltage of 480V at no load and 220 V at a load current of 100A, while the other machine has a voltage of 470 V at no load and 200 V at 120 A. calculate the current in each generator and the bus bar voltage when the total load is 180 A. What is the kilowatt output of each machine under this condition?
answer all subparts please
Q3. Write if the shown statements are TRUE or FALSE. 1- In DC machine the induced e.m.f is proportional with flux only. 2- The Ta/l a graph of a d.c. series motor is a straight line throughout. 3- In a DC motor the direction of the shaft rotation can be change by changing the polarity of the power supply. 4-The critical resistance is less than armature resistance in shunt generator. 5-As the load is increased, the speed of a d.c. shunt motor increases slightly.
3- A shunt machine connected to 250V mains has an armature resistance (including brushes) of 0.120 and the resistance of the field circuit is 1002. Find the ratio of the speed as a generator to the speed as a motor. The line current in each case being 80A 1001 W 200
please help
4-pole, d.c. shunt motor has a flux per pole of 0.04 Wb and the armature is lap-wound with 720 conductors. The shunt field resistance is 240 Ω and the armature resistance is 0.2 Ω. Brush contact drop is 1V per brush. Determine the speed of the machine when running (a) as a motor taking 60 A and (b) as a generator supplying 120 A. The terminal voltage in each case is 480 V. 5 3 K4 8 Derive the Torque equation of a D.C Motor.