The following information is given for a 100kW, 400 V, short shunt compound generator: Shunt field resistance is 100, armature resistance including brush resistance is 0.035, commutating field winding resistance is 0.02, series field resistance is 0.018, divertor resistance is 0.04. When the machine is delivering full load, calculate the power generated by the armature.

The following information is given for a 100kW, 400 V, short shunt compound generator: Shunt field resistance is 100, armature resistance including brush resistance is 0.035, commutating field winding resistance is 0.02, series field resistance is 0.018, divertor resistance is 0.04. When the machine is delivering full load, calculate the power generated by the armature.

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

An A 20kW DC shunt generator having an armature circuit resistance of 0.8Ω and a field resistance of 140 Ω, generates a terminal voltage of 230V at full load. Determine the total iron, friction and windage losses if the efficiency of the generator at full load= 83%.
A 1500KVA, 11KV, 50Hz, Star connected synchronous generator is tested by operating it as a synchronous motor on no-load. The results are as follows: When operated as a synchronous motor on load the power input to the motor is 55.8KW and the armature line current is 70A. The excitation of 38.6A at 250V dc gives the normal open-circuit voltage. DC resistance test: dc line voltage 17.5V and dc line current 70A. Take the effective resistance as 1.6 times the dc resistance. Calculate the efficiency of the machine on 80% of the full-load and 0.75 power factor lagging
A compound generator has an efficiency of 87% at 200V, 10kW rated output. If the series field resistance of 0.03 ohm, armature resistance of 0.05 ohm and shunt field resistance is 50 ohms. Find the efliciency at half load.
1-) Total Armature Winding resistance of 200kW, 380V self-excitation shunt generator is 0.07 Ω and areawinding resistance is 60Ω. Brush-contact voltage drop is neglected. Generator 380V ratedit feeds the load at Rated Power value at voltage. (a) draw the equivalent circuit of the corresponding DC machine, specifying all current, voltage and winding resistors.Make appropriate arrangements for the generator (b) find the voltage value induced at full load (c) calculate the power value generated on the DC machine (Enter the formulas that you use for calculations and enter the names of the corresponding parameters.)
The synchronous reactance per phase of the 460 V, 60 Hz, Y-connected 6-pole synchronous generator is 1.2 Ω. full load armature current 30 A (at 0.8 reverse power-coefficient). Rotary losses 1.5 kW and core losses 1.0 kW (60 Hz at full load). The armature resistance winding losses are neglected. Excitation current, generator no load terminal voltage is set to 480 V while operating. According to this: c. What is the efficiency of the generator when operating at rated current and a reverse power-coefficient of 0.8? D. How much shaft torque should be applied by the drive machine when the generator is running at full load? E. What happens to the induced torque?
A 6-pole, lap-wound, DC generator has a useful flux per pole of 0.08 Wb. The armature winding consists of 200 turns and the resistance is 0.055 ohms. Calculate the terminal voltage if the resistance of shunt and series field are 100 ohms and 0.02 ohms respectively, when the generator is running at 1000 rpa. Assume generator connection as short-shuntb. Assume generator connection as long-shunt
A 18 kW shunt generator having an armature circuit resistance of 0.5 ohm and a fieldresistance of 125 ohm, generates a terminal voltage of 250 V at full load with a brushloss of 1 V per brush. Assuming the iron, friction and windage losses amount to 1.5kW. Determine the efficiency of the generator. (Show all calculations of Currents,Emf, Powers, Power losses, ext.)
60kW, 270V short shunt compound generator total Armature Winding resistance 54mΩ, series area windingits resistance is 40mΩ and the shunt field winding resistance is 135Ω. Brush-contact voltage drop is neglected.The generator supplies the load at Rated Power Rating (60kW) at rated voltage of 270V. Generatorthe voltage induced in the armature is 291V. (a) draw the equivalent circuit of the corresponding DC machine, specifying all current, voltage and winding resistors.Make appropriate current direction arrangements for the generator. (b) load current value, (c) armature current value at full load (it is strongly requested that the articles you send be read)
In shunt DC generator, the rated load power and speed are 6kW and 1500rpm. Therated load voltage is 230V. The internal armature resistance is 0.92Ω. The resistance ofthe field winding is 177Ω. Calculate the following:(a) The no -load voltage(b) Electromagnetic torque needed to start the generator armature in N-mHint: Use the formula PIN = (2π N T) / 60where PIN is the power inputN is the generator rated sped in rpmT is the torque needed to crank the generator armature in N-m(c) The percentage voltage regulator
An 8-Pole, simplex lap wound, shunt generator has 800conductors and a flux per pole of 0.025Wb and running at 1200rpm. The armature and shunt field resistances are 0.25Ω and 120Ω respectively. If the armature voltage drop is equal to 10V, what is the load current (in Amp)? use two decimal places if the answer is not exact and do not include the unit anymore.
A 10 kW, 250V DC, 6-pole, long-shunt generator runs at 1000 RPM when delivering full-load. The armature has 534 simplex lap connected conductors. The full-load total Cu losses are 660 W and the total brush drop is 1 volt. Determine the flux per pole if the field resistance is 250 ohms and series field resistance is 0.05 ohms.
The following information is given for a Long Shunt connected Flat Compound Generator: Power rating = 100KW; Terminal voltage = 250 volts ; the shunt field winding resistance = 125 ohms; the armature winding resistance = 0.3 ohm; series field winding resistance = 0.13 ohm; the diverter resistance = 0.11 ohm. Calculate the power generated by the generator when it is, delivering power to the load at its rated or full-load value. delivering power to the load at half full-load or half rated value