A 250V, 150 kW, 850 rpm, DC shunt generator has an armature resistance of 15 m0 and a total field-circuit resistance of 25 2. The generator is driven at rated speed and supplying rated load at rated terminal voltage with 92.5% efficiency. Complete the power flow diagram below by entering the unknown values in the boxes provided. Express your answers in kW to three decimal places. Neatly show all work in the space below the diagram Pout Pin Po PE Pa Prot

A 250V, 150 kW, 850 rpm, DC shunt generator has an armature resistance of 15 m0 and a total field-circuit resistance of 25 2. The generator is driven at rated speed and supplying rated load at rated terminal voltage with 92.5% efficiency. Complete the power flow diagram below by entering the unknown values in the boxes provided. Express your answers in kW to three decimal places. Neatly show all work in the space below the diagram Pout Pin Po PE Pa Prot

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

Similar questions

A shunt DC generator has no load terminal voltage of 140V. Armature resistance is 1ohm and shunt field resistance is 50ohm. Calculate the induced voltage.
A 4 pole generator with wave wound armature has 54 slots each having 28 conductors. The flux per pole is 0.01 Wb. () At what speed must the armature rotate to give an induced EMF of 220V is, (i) What will be the voltage developed, if the winding is lap connected and the armature rotates at the same speed is,
2. A spherical capacitor with a = 1.5cm, b= 4cm has an inhomogeneous dielectric of ɛ= ɛ0/r. Calculate the capacitance of this capacitor
An 8- pole dc generator has 500 armature conducters and a useful flux of 0.05 Wb. A. What will be the emf generated, if it is lap- connected and runs at 1200 rpm? B. What must be the speed at which it is to be driven to produce the same emf if it is wave wound.
A 2 pole wave wound dc generator has 44 slots, each slot having 20 conductors. The flux/pole is 0.018 weber. At what speed the armature be rotated to get an induced emf of 220 V. What will be the induced emf developed if the armature winding is lap connected and runs at the same speed. Speed Generated Emf when lap connected
50 KW, 240 V enduvi resistance of a generator with foreign excitation is 0.02 ohms. Generatorproduces rated voltage at rated load. Endüvi voltage and endüvi current at rated loadcalculate? If the output voltage is kept constant at 240V and the output power is reduced to 45 KWfind the enduvi tension necessary for this?
An 6-pole d.c. generator has 515 armature conductors, and a useful flux of 10 mWb per pole. What will be the e.m.f. generated if it is lap-connected and runs at 970 rpm? What must be the speed at which it is to be driven produce the same e.m.f. if it is wave-wound? Eg Speed
1. A machine delivers power to the load at 220 V while being driven at 1,050 rpm. At this load, the armature circuit dissipates 650 W. The armature of a 6-pole separately excited dc generator is lap wound with 534 conductors. If the flux per pole of this generator is 30- mWb, determine the kW rating of the load served. Assume a total brush contact drop of 1.5 V.
the armature of a 12 pole wave wound dc shunt generator has 50 slots with 12 conductors per slot. the generatoris running at a speed of 625 rpm and supplies a resistive load of 15 ohm at a terminal voltage 350v. the armature and the field reisitance are0.5 ohm and 70 ohm respectively. find the armature current,generated emf and flux per pole
Answer all subparts for thumbs up A 15 - kW, 320-V DC generators has armature, series and shunt field winding resistances of 0.0256 Ω, 0.0946 Ω and 70 Ω respectively. At full load, determine the terminal voltage, if the flux per pole is increased by 7 % and the speed is decreased by 12 % and its connection is (a) series, (b) shunt, (c) long – shunt, and (d) short shunt.
State two reasons why a self-excited shunt dc generator may fail to build up a voltage. In each (both) case, briefly explain what can be done to correct the problem. Reason #1 Solution #1 Reason #2 Solution #2
4. What for brushes are employed in DC generator? 5. What is the function of armature in a DC generator? 6. What is the function of commutator in a DC machine in generator action. 7 Whieh diffe u0ad in