4. In a compound generator connected short-shunt, the induced emf in the armature is 236.4 voltswhen it delivers 150 amperes to the load. The shunt field current is 2.5 A and the armatureresistance is 0.032 2. The series field resistance is 0.015 N and is being shunted with a diverterof resistance Ra. At this condition the electrical efficiency is 95.697%. Determine terminalvoltage, diverter resistance Ra and electrical losses.(a) 230V, 0.031N & 1,550.45W(b) 232V, 0.031Q & 2,550.68W(c) 230V, 0.074N & 1,674.52W(d) 230V, 0.031Q & 1,850.42W

Given Short shunt compound generator Induced EMF in the armature E=236.4 vLoad current IL=150 AThe…

4. In a compound generator connected short-shunt, the induced emf in the armature is 236.4 volts when it delivers 150 amperes to the load. The shunt field current is 2.5 A and the armature resistance is 0.032 2. The series field resistance is 0.015 2 and is being shunted with a diverter of resistance R4. At this condition the electrical efficiency is 95.697%. Determine terminal voltage, diverter resistance Ra and electrical losses. (a) 230V, 0.031Q & 1,550.45W (b) 232V, 0.031N & 2,550.68W (c) 230V, 0.0742 & 1,674.52w (d) 230V, 0.031Q & 1,850.42W

4. In a compound generator connected short-shunt, the induced emf in the armature is 236.4 volts when it delivers 150 amperes to the load. The shunt field current is 2.5 A and the armature resistance is 0.032 2. The series field resistance is 0.015 2 and is being shunted with a diverter of resistance R4. At this condition the electrical efficiency is 95.697%. Determine terminal voltage, diverter resistance Ra and electrical losses. (a) 230V, 0.031Q & 1,550.45W (b) 232V, 0.031N & 2,550.68W (c) 230V, 0.0742 & 1,674.52w (d) 230V, 0.031Q & 1,850.42W

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

Chapter12: Power System Controls

Section: Chapter Questions

Problem 12.11P

See similar textbooks

Similar questions

For Problem 3.18, the motor operates at full load, at 0.8 power factor leading, and at a terminal voltage of 10.45 kV. Determine (a) the voltage at bus 1, which is the generator bus, and (b) the generator and motor internal EMFs.
A short shunt compound DC generator supplies a load of 10A at a voltage of 10 volts. If the resistances of Armature, shunt field and series field windings are 0.01 ohm, 1 ohm and 0.00 ohm respectively. c) Write down the factors to improve the generated voltage.
A short shunt compound DC generator supplies a load current of 10A at a voltage of 10 volts. If the resistance of armature, shunt field and series field windings are 0.001 ohm, 1 ohm 0.00 ohm respectively. c) write down the factors to improve the generated voltage.
A 4 pole dc shunt generator with a shunt field resistance of 100 ohm and an armature resistance of 1 ohm has 378 wave connected conductor in its armature. the flux per pole is 0.02wb, if the load resistance of 10 ohm is connexted across the aemature terminal and the generator driven at 1000rpm, calculate the power obsorbed by load
A long shunt compound DC generator delivers a load current of 150A at 230V and has armature, series field and shunt field resistances of 0.032, 0.015 and 92Ωrespectively. Calculate (i) induced emf (ii) total power generated and (iii) distribution of this power (iv) voltage regulation
A short shunt compound DC generator supplies a load of 10A at a voltage of 10 volts. If the resistances of Armature, shunt field and series field windings are 0.01 ohm, 1 ohm and 0.00 ohm respectively. c) write down the factors to improve the generated voltage. Generated Voltage is 10.2 V
A shunt generator supplies a 31kW load at 230V through cables of resistance, R = 122mΩ. If the field winding resistance, Rf =50Ω and the armature resistance, Ra =51mΩ. Determine the following below: The terminal voltage is, Answer and unit for part 1 The e.m.f. generated in the armature is,
A short shunt compound DC generator delivers a load current of 30 A at 220 V and has armature, series field and shunt field resistances of 0.05, 0.3 and 200Ω respectively. Calculate the induced emf, the armature current and the voltage regulation. Allow 1 V per brush for contact dro
In a three-phase, Y-connected, 750-kVA, 1732-V, synchronous generator afield current of 20 A at the rated speed produces a current of 300 A onshort circuit and a voltage of 1732 V on open circuit. The resistance betweenany two terminals of the generator is 0.8 R. Determine the synchronousreactance of the generator. The rotational loss is 20 kW. Using the per-unitsystem, determine the voltage regulation and the efficiency of the generatorwhen it delivers the rated load at its rated voltage and unity power factor.
A three-phase Y-connected synchronous generator has rated values of 90 MVA, 15 kV, 0.6 reverse power factor, 50-Hz. Synchronous reactance 1.6 ohmsand armature resistance is neglected. According to thisa) Find the induced voltage (EA) and armature current (LA). b) Find the voltage regulation.c) If this generator was operated at 60 Hz with the same armature and field losses as at 50 Hz; What would be the voltage, apparent power and reactance of the generator
A 20 kW, 440-V, short-shunt, compound d.c. generator has a full-load efficiency of 87%. If theresistance of the armature and interpoles is 0.4 Ω and that of the series and shunt fields 0.25 Ωand 240 Ω respectively, calculate the combined bearing friction, windage and core-loss of themachine.
A 20 kW COMPOUND GENERATOR WORKS ON FULL LOAD WITH TERMINAL VOLTAGE OF 250V. THE ARMATURE, SERIES AND SHUNT WINDINGS HAVE RESISTANCES OF 0.05 OHM, 0.025 OHM, AND 100 OHMS, RESPECTIVELY. IF THE MACHINE IS CONNECTED SHORT SHUNT, FIND THE EMF GENERATED.