True or False? - Efficiency and capacity factor of an electric power generator depend on how it is operated.

Q: a. the round part of the rotating field. b. wound with wire. c. usually round on large machines. d.…

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Q: a. A 5-kW AC motor has a power factor of 65% lagging when it is connected to a 200-V 50-Hz mains.…

A: Given that: The output of the motor, Pout=5 kW Power factor=65%=0.65 Supply: VS=200 V, 50 Hz…

Q: Mechanical energy is supplied to a d.c. generator at the rate of 4800 J/s.  The generator delivers…

A: (i) Mechanical power supplied to generator is, Generator delivers 40 A at 220 V. Therefore, power…

Q: Calculate the efficiency of a 200-V, 100-kW shunt generator if the resistance of the armature and…

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Q: 6. To raise generator voltage, the a. field current should be increased. b. field current should be…

A: basic questions on DC machines

Q: 1. If a particular process has 6 electric motors with nameplate ratings of 7.5 KW and these operate…

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Q: c) The O.C.C. of a DC shunt generator running at 300 rpm is as follows. 4 6. 7 Ir (A) Eo (V) 2 92…

A: It is given that: N=300rpm OCC Table:

Q: A 243.5 shunt Generator generates 4.5 Amps. Its Armature resistance is 1.1 Ohms. What is the…

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Q: The armature of a separately excited generator had a resistance of 0.16 ohm. When run at its rated…

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Q: Q Advantages of rotating field in an Alternator? (Write five point with Explanation)

A: An alternator is a machine that transforms mechanical energy into alternating current (AC)…

Q: A 30kW generator has an armature resistance of 0.45 ohms, generates a terminal voltage of 225 V at…

A: 74.27 percent

Q: 1. The armature of a shunt generator has 0.08- effective resistance. Each brush has an effect…

A: In this question , we will find efficiency of dc generator.... Note :- as per our guidelines , I am…

Q: A 44 kW, 125 V DC long-shunt generator has an armature, series field and shunt field resistances of…

A: In this question we will find armature induced voltage....

Q: The gas turbine, diesel motor and steam turbine are called the of a generator to produce…

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Q: Explain the types of generator used in wind turbines with a neat diagram and also discuss the grid…

A: Different energy sources are required in day to day life. These energy sources can be renewable or…

Q: A generator is loaded with certain load, and its  voltage regulation is very poor. What are various…

A: voltage regulation refers to change in the generator terminal voltage with change in load current.…

Q: A DC generator feeds a load consisting of 22 lamps, each lamp capacity 100 W,220 V, calculate the…

A: We need to find out induced voltage for given generator for given load .

Q: A mechanical load of 0.5n moved by a 12 v linear motor with movable member of 0.2 meter long moving…

A: i) For the steady-state condition, the force on the mechanical load should be balanced. The force…

Q: Q2/ The open circuit voltage of a separately excited de generator when running at a constant speed…

A: Initial speed of the generator (N1) = 2000 r.p.m The generated e.m.f, Eg1 = 122 V Load voltage (V) =…

Q: Compare AC Motor and DC Motor - Types of AC Generator and its explanation

A: S.NO. AC MOTOR DC MOTOR 1. Alternating current drives these electric motor An electric motor that…

Q: The following questions refer to to a 6-pole DC generator has a simplex lap-wound armature…

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Q: Two 250 V dc generators are operating in parallel and taking equal shares of a 3600 A, 250 V bus…

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Q: 0. Connect the self-excited generator in Figure 3-2 by drawing the proper connections the terminal…

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Q: Q2:B: Explain the process of voltage build up in a DC shunt generator and its conditions use…

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Q: QA 20 KW, 200 volts D.C shunt generator has armature resistance = 1 ohm and field resistance =50…

A: Types of DC Machine separately excited  Shunt DC Machine Series DC Machine cumulative long shunt…

Q: D. Scientists plan to do a third experiment in order to find a generator with the greatest useful…

A: Current through a conductor generates a magnetic field which is circular in nature around a…

Q: 3. A shunt machine connected to 250V mains has an armature resistance (including brushes) of 0.120…

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Q: The ratio between the power output and the power input of a generator is

A: The question is about definition of efficiency.

Q: If rotor input of a SCIM running with a slip of 10% is 100 kW. gross power developed by its rotor is…

A: Step 1: Step 2: Step 3: Step 4:

Q: The meter constant of a single phase 230 Volt induction watt hour meter is 400 revolution per kWh,…

A: Given a induction watt hour meter with, Voltage, V=230 V. Meter constant, K=400 revkWh. Current,…

Q: 7. When it is necessary to provide automatic control of the voltage output at constant speed, the…

A: Conceptual Background:- DC Generators:- An electrical device called a DC generator's principal job…

Q: A short shunt compound generator supplies 100 A 110 V. Armature resistance 0.05 ohm, shunt field…

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Q: How much work could be performed by a 5968 W (8 hp) motor in 6 hours?

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Q: Two generators have real power generation of P₁ and P₂ in MW and have following fuel cost…

A: Given, L1=0.05P12+20P1+30RshrL2=0.06P22+20P2+40Rshr Each generator has the capacity of 210MW and…

Q: 1 kW, 101 V DC series generator has an armature and field resistance of 0.04 ohms and 0.06 ohms…

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Q: NO LOAD AND LOADED CHARACTERISTICS OF SEPARATELY EXCITED DC GENERATOR: Table 3.1 shows the load…

A: The given data is shown below:  RL IL EA POWER Infinite 0 134.4 0 600 0.22 131.8 28.996 3OO…

Q: What is a generator? Why does it work

A: The generator is a device that converts mechanical energy into electrical energy. The principle…

Q: Problem 22. A motor runs at 900 r/min off a 460 V supply. Calculate the approximate speed when the…

A: Given:- Speed of motor 900 rpm 460 V Supply Assume new flux to be 0.7 of original flux. If ϕ is the…

Q: For any feasible combination of generators, the load will be dispatched based on a. Heat rate b.…

A: For a power system that contains number of generator , ' Equal incremental cost rule ' determines…

Q: The field winding of a d.c. motor is connected to a 110V supply. At a temperature of 18°C, the…

A: We need to find out temperature for given condition . First we will find out the resistance for both…

Q: if a dc generator delivers 180w to a load, what is the minimum hp needed to drive the…

A: if a if a dc generator delivers 180w to a load, what is the minimum hp needed to drive the…

Q: Explain the power flow diagram of a de generator. Q1/

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DC Generator

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