Cylindrical rotor alternators have mcq

WebJun 12, 2015 · Smooth Cylindrical Type Rotor - Synchronous Generator - MCQs with answers Q1. The diameter and axial length of rotors of smooth cylindrical type rotors … http://www.electricalunits.com/mcq-alternator-and-synchronous-motors-page-3/

Alternator MCQ - Your Electrical Guide

WebSep 30, 2024 · This is the Multiple Choice Questions Part 2 of the Series in AC Generators as one of the Electrical Engineering topic. ... Turbo-alternators have rotors of. A. small diameter and long axial length ... Solution: 73. The rotor of a turbo-alternator is made cylindrical in order to reduce _____. A. eddy current loss. B. hysteresis loss. C. … WebMaximum power in cylinder rotor alternator occurs at load angle of __________ a) 90 degree b) 45 degree c) less than 90 degree d) 180 degree View Answer 10. A synchronous generator is operating with a Ef=1.40pu. This machine having Xs of 1.2pu, is delivering a synchronous power of 0.5pu to the bus. sharepoint fedramp https://wackerlycpa.com

Cylindrical Rotor Alternator Questions - Electrical Machines

WebDec 10, 2024 · Rotor. There are two types of rotor, smooth cylindrical type and salient pole type. Smooth Cylindrical type alternator. The rotor consists of a smooth solid steel cylinder, having a number of slots along its outer periphery for hosting the field coils. They do not have projected poles, instead, it has a uniform length in all directions, giving a … WebA cylindrical rotor alternator has a comparatively long axial length and a small diameter. The other names of the cylindrical rotor alternators are turbo-alternators or turbo-generators. They are always installed in a horizontal configuration. The followings are the features of the cylindrical rotor. Web26. In turbo-alternators, smooth cylindrical type rotors used have long axial length because (a) it gives smooth running of the rotor (b) it reduces windage loss (c) … sharepoint fedauth cookie

Cylindrical Pole Type MCQ [Free PDF] - Objective …

Category:Alternator MCQ Question Answer - Your Electrical Guide

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Cylindrical rotor alternators have mcq

Alternator Rotor Types MCQ [Free PDF] - Objective …

WebCylindrical rotor alternators have a) Large length to diameter ratio b) Small length to diameter ratio c) Vertical configuration d) None of these Ans: (a) 25. In an alternator, the … WebFeb 24, 2012 · Now let us derive various equations for the power flow the cylindrical rotor alternator. In order to derive various power equation for an alternator let us substitute voltage source E 1 equal to the excitation voltage (E f), voltage source E 2 equals to the terminal voltage (V t), inductive impedance of the above circuit equals to synchronous …

Cylindrical rotor alternators have mcq

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WebIn this MCQ you can learn and practice Cylindrical Rotor Alternator objective quiz questions to test your knowledge on electrical machines. … WebSolutions for Chapter 6 Problem 3MCQ: The rotors preferred for alternators coupled to hydraulic turbines are(a) salient pole type(b) cylindrical rotor type(c) solid rotor type(d) …

WebAug 19, 2024 · Home alternator MCQ Alternator Objective Questions With Explanation Part-1 August 19, 2024 1. The speed of a 4-pole 60 Hz synchronous machine will be A. …

Webused for low-speed alternators. Used for high-speed turbo-alternators. Has projecting poles. Has no projecting poles. Needs damper windings. Do not need damper windings. … WebAug 3, 2024 · Difference between Cylindrical Rotor and Salient Pole Rotor Synchronous Generator - A synchronous generator, also called alternator, is a most widely used …

WebThe rotor is the rotating part of the alternator. It is made in a cylindrical shape that has copper windings also known as field winding. The field windings are electromagnets that generate the necessary rotating …

WebMar 6, 2024 · Smooth Cylindrical type rotor is generally used for high-speed alternators or turbo-alternators. This is because: These rotors have small diameter and long axial … pop beauty highlighter paletteWebOn the other hand, cylindrical rotors are used for turbo alternators running at high speed as 3600 RPM or 1800 RPM. ④ Alternators are also called Synchronous generators … sharepoint features and benefitsWebAlternator MCQ Synchronous Generator MCQ 151. Consider the following statements Salient pole alternators have small diameters and large axial lengths. Cylindrical rotor alternators have a distributed winding. Cylindrical rotor alternators are wound for … sharepoint feedback buttonWebJun 6, 2024 · An alternator is generating power at 210 V per phase while running at 1500 RPM. If the speed of an alternator drops to 1000 rpm the generated voltage per phase will be. Ques.23. An alternator is said to … sharepoint federal credit unionWebIn alternators, cylindrical pole type rotors are generally used with prime movers of a) High speed b) Low speed c) Medium speed d) Both low and high speed Ans: (a) 9. An alternator is said to be overexcited when it is operating at a) Unity power factor b) Leading power factor c) Lagging power factor d) Either lagging or leading power factor sharepoint federationWebThis type of Rotor is used for steam-driven alternator i.e turbo alternator which runs at very high speed. The Rotor is made up of smooth solid forgings of alloy steel cylinder having the number of slots along the outer periphery. The field windings of cylindrical type rotor are connected in series to the slip rings through which they are excited by the DC … sharepoint fest chicagoWebJun 12, 2015 · Salient Pole Type Rotor - Synchronous Generator - MCQs with answers Q1. In synchronous machine, poles are made up of thick steel laminations. In salient pole type rotor a. Poles are projected out from the surface of the rotor b. The unslotted portions of the cylinder itself acts as the poles c. Both (a) and (b) d. None of the above sharepoint fest 2022