A long shunt compound Generator supplies 10 kW at a terminal voltage of 200 V. The machine parameters are as follows: R = 0.07 , R, = 0.1, R₁ = 120 2. If the total losses percentage are 20% and the torque developed by the prime mover is 119.4 N.m, find the following after drawing the circuit diagram: 1. Overall efficiency and the input power 2. Copper loss, 2. Iron and friction loss, 4. Speed in r.p.m.

A long shunt compound Generator supplies 10 kW at a terminal voltage of 200 V. The machine parameters are as follows: R = 0.07 , R, = 0.1, R₁ = 120 2. If the total losses percentage are 20% and the torque developed by the prime mover is 119.4 N.m, find the following after drawing the circuit diagram: 1. Overall efficiency and the input power 2. Copper loss, 2. Iron and friction loss, 4. Speed in r.p.m.

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 transformer iron core has a mass of 50 kg. At 25 Hz, the maiximum flux density in the core is 1.3 T. Assume a Steinmetz coefficient of 600 J/m3 and density of 7800 kg/m3. Find the energy lost in the core after 1 hour.
A 6 pole DC lap wound generator has 38 armature conductors with flux per pole is 42 mWb and the e.m.f generated is 78 V, then the speed of the machine is 48.87 rps O 3.87 rps O 0.39 rps O 48.87 rps When the load on a series generator is decreased, then the flux produced will be increased. Select one: O True O False
A four-pole Series connected generator has a lap connected armature with 728 conductors. If the generator supplies one hundred incandescence lamp (100V, 60 W). The series field and armature resistance are 0.2 ohms and 0.015 ohms respectively. Find the generated voltage.
4. Two 3300 V star-connected alternators running in parallel supply the following loads : 800 kW at unity p.f.; 600 kW at p.f. 0-8 lagging; 400 kW at p.f. 0-707 lagging The armature current of one machine is 150 A at p.f. 0-85 lagging. What is the armature current, output and p.f. of the other machine? [200 A; 1071 kW; 0-937 lagging]
A 6 pole DC lap wound generator has 34 armature conductors with flux per pole is 48 mWb and the e.m.f generated is 55 V, then the speed of the machine is 4.29 rps 0.43 rps 33.70 rps 33.70 rps
A 6 pole DC lap wound generator has 32 armature conductors with flux per pole is 44 mWb and the e.m.f generated is 74 V, then the speed of the machine is O 3.28 rps 0.33 rps 52.56 rps O 52.56 rps arch op
The maximum efficiency of 10Kw D.C generator is 98% and occurs at 80% of full load. Find the total copper losses at rated load
The load characteristic curve of the DC generator is the relationship between the O Load current and load voltage Generated voltage and field current O Generated voltage and load current O Load voltage and field current
A D.C. shunt wound generator running at constant speed generates a voltage of 120V at a certain value of field current. When flux is reduced by 10% calculate the new value of flux Estimate the change in the generated voltage when the field current is reduced by 10%, assuming the flux is proportional to the field current.
Please quick solution
2MVA, 2.3kV 3Ø Y-connected alternator operates at rated kVA at a power factor of 80%. The DC armature winding resistance between terminals is 0.08Ω. The field takes 70A at 125V from an exciter equipment. Friction and windage loss is 20kW, iron losses 36kW and stray load losses are 2kW. Calculate the efficiency of the alternator. Assume the effective armature winding resistance is 120% of the DC resistance.