Cylindrical rotor alternators have mcq

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August undefined, 2024

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) … WebThe field windings of cylindrical type rotor are connected in series to the slip rings through which they are excited by the DC exciter. The top portion of the slot is covered with the …

Alternator - Construction, Working, Types and …

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. … WebFeb 4, 2024 · The salient pole and cylindrical or round rotor are two types of synchronous machines. In an alternator or synchronous generator various losses occur such as … how do i install my epson navi

Motors Flashcards Quizlet

WebJun 6, 2024 · Show Explanation Ques 52. Two alternators rated 40 MVA and 60 MVA respectively are working in parallel and supplying a total load of 80 MW. Speed regulation of both the alternator is 5%. The load sharing … WebOn 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 … WebJun 22, 2024 · A simple brief definition and explanation. The main story is on the way: salient pole vs cylindrical pole. Cylindrical (non-salient) pole or round-rotor or a drum rotor usually can be found in higher speed … how do i install my gmail on this computer

100 MCQ OF Synchronous Generator or Alternator with …

Alternator / Generator – MCQs with Explanatory Answers)

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. 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) … how do i install msvcr120.dll in windowsWebJun 12, 2015 · Smooth Cylindrical Type Rotor - Synchronous Generator - MCQs with answers Q1. The diameter and axial length of rotors of smooth cylindrical type rotors … how do i install my email account

"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

Cylindrical rotor alternators have mcq

Cylindrical Rotor Alternator Questions - Electrical Machines

WebMCQs on Synchronous Motor 1. Synchronous motors generally have salient pole rotor smooth cylindrical rotor either the salient pole rotor or smooth cylindrical rotor none of the above Correct Answer 2. Number of slip rings in a 3-phase synchronous motor will be 0 1 2 3 or 4 Correct Answer 3. WebAug 3, 2024 · Difference between Cylindrical Rotor and Salient Pole Rotor Synchronous Generator - A synchronous generator, also called alternator, is a most widely used …

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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. … 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 …

WebAlternator 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 …

http://www.electricalunits.com/mcq-alternator-and-synchronous-motors-page-3/ WebAug 3, 2024 · Difference between Cylindrical Rotor and Salient Pole Rotor Synchronous Generator - A synchronous generator, also called alternator, is a most widely used electric generator that produces alternating current supply. It is the main component of every power generating station. Based on the rotor construction, the synchronous generators are of …

WebThis 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 …

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. … how much is vitalityWebCylindrical 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 … how do i install mypy using python 3.10.8WebJun 12, 2015 · Smooth Cylindrical Type Rotor - Synchronous Generator - MCQs with answers Q1. The diameter and axial length of rotors of smooth cylindrical type rotors are a. Small diameter, small axial length b. Large diameter, large axial length c. Large diameter, small axial length d. Small diameter, large axial length View Answer / Hide Answer Q2. how do i install my hp scannerWebJun 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 … how do i install mysqldbWeb20. The synchronous motor meets increase in load by taking more armature current as. (a) the rotor pole falls back relative to the stator pole causing an increase in motor current. (b) the back emf decreases causing an increase in motor current. (c) rotating field is strengthened causing an increase in motor current. how do i install mysqlWebA 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. how much is vision exam at walmartWebAlternators can be classified into the following two types according to its rotor construction Smooth cylindrical type alternator Salient pole alternator 5. Why do cylindrical Alternators operate with steam turbines? Steam turbines are found to operate at fairly good efficiency only at high speeds. how much is visual basic