Smooth cylindrical pole

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August undefined, 2024

WebSmooth cylindrical pole or non-salient pole: SMOOTH CYLINDRICAL POLE. The rotors of this type are used in very high speed alternators driven by steam turbines. To reduce the peripheral velocity, the diameter of the rotor is reduced and axial length is increased. Such rotors have 2n or 4 poles. Web14 Nov 2014 · This rotor is also called as Projected pole type. This is preferred for low-speed alternators ranging from 125 r.p.m to 500 RPM; Separate damper winding is provided. 2.Cylindrical Pole Alternator: Unslotted portion of the cylinder acts as poles hence poles are non-projecting. The air gap is uniform due to the smooth cylindrical periphery.

Alternator Rotor Construction - 2braces

Web12 Jun 2015 · Projected pole type c. Smooth cylindrical type d. Both (a) & (b) View Answer / Hide Answer. ANSWER: c. Smooth cylindrical type . Q3. The phasor addition of stator and rotor mmfs is possible in a smooth cylindrical synchronous generator because a. Mmfs of stator and rotor are stationary with respect to each other picture of a puggle puppy

Salient Pole Rotor vs Non-Salient Pole Rotor - Come4Concepts

Websmooth cylindrical rotor either salient pole or smooth cylindrical None of the above Answer (Detailed Solution Below) Option 1 : salient pole rotor Crack AE & JE - Civil with India's Super Teachers FREE Demo Classes Available* Explore Supercoaching For FREE Free Tests View all Free tests > Free WBSETCL JE Gr-II Electrical 2024 Official Paper Web25 Dec 2024 · The surface of the rotor of this type is smooth due to the absence of projection of poles, thus maintaining uniform air-gap between stator and rotor. Such … WebThere is a perfect connection between the smooth cylindrical pole and the rectangular board. The density of air is 1.2 kg/m3 and its kinematic viscosity is 10-5 m2 /s. Using the … topek limited glasgow

Why is a salient rotor slower than a non-salient rotor? - Quora

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Web6 Jun 2024 · It has a revolving rectangular coil that rotates around its axis in the magnetic field. Two slip rings are connected to the ends of the coil. The slip ring absorbs the … WebCylindrical poles are therefore not as strong as a tapered pole and do not have a SABS grading for the strength. They are intended for non-structural applications but can be used … topek harry potterWeb12 Jun 2015 · Smooth cylindrical type rotor b. Salient pole type rotor c. Both (a) & (b) d. None of these View Answer / Hide Answer. ANSWER: b. Salient pole type rotor. Q5. Generally, in alternator divided winding rotor is preferred to a conventional winding rotor, because it gives a. Better damping b. Less harmonics topek ltd companies house

"Web3 Aug 2024 · The cylindrical rotor has smooth surface because there is no poles projected on it. Hence, it maintains a uniform air-gap between the stator and rotor in the alternator. … " - Smooth cylindrical pole

Smooth cylindrical pole

What is Permanent Magnet Synchronous Motor? Working, Construction …

WebCylindrical Pole Type. Such an alternator has a cylindrical rotor with slots for field winding. The unslotted part of the rotor forms the N and S poles. They are fewer in number usually 2 or 4. It has a smaller diameter and longer axial length. The advantage of such alternator is that it has uniform flux distribution, and high-speed operation. Webstator is cylindrical, rotor is either salient-pole or cylindrical) – Field is on rotor – Armature is on stator Type of Windings: (a) Distributed type (e.g. armature winding of DC machines) ... Ex1: Figure on the right shows the two-pole revolving inside a smooth stator which carries a coil of 110 turns. The rotor produces a sinusoidal ...

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WebTwo types of rotor construction used for Synchronous machines are :: 1. Salient pole rotor 2. Smooth cylindrical type rotor / Non-salient pole rotor. Salient pole rotor construction offer the following advantages : (i) It can accommodate damper winding on pole faces. WebThe construction of non-salient pole rotor ( cylindrical rotor) is as shown in figure above. Sometimes, they are also called as drum rotor. They are smaller in diameter but having longer axial length. Cylindrical rotors are …

WebHaving salient poles on stator and rotor a switched reluctance motor is called.. machine O Smooth cylindrical pole O Cylindrical pole O Salient pole O Doubly salient. Question. Solve it fast fast plz . Transcribed Image Text: ... Web1 Mar 2024 · Difference between salient pole and non-salient pole ( smooth cylindrical ) rotor Comparison between salient pole and cylindrical pole rotor Difference b...

WebSmooth cylindrical rotor is used for alternators which are coupled to steam turbine which run as very high speeds. The diameter of the rotor is reduced and axial length is increased to reduce the peripheral speed of the alternator. The number of rotor poles are 2 or 4. Smooth cylindrical type rotors are made from solid forgings of alloy steel. Web10 Apr 2024 · The rotor consists of a smooth solid forged steel radial cylinder having a number of slots along the outer periphery. Field windings are embedded in these slots and …

WebThe hig h speed operation of rotors tends to increase mechanical losses and so the rotors should have a smooth external surface. Hence, smooth cylindrical type rotors with less diamete rand large axial length are used for Synchronous generators driven by steam turbines with either 2 or4 poles.

Web25 Nov 2024 · As cylindrical rotor has no projections and there is a closed portion to contain field winding which is distributed. Therefore it acts as a smooth rotor and it does not require any damper winding as the smooth rotor it self acts as good damper. So that cylindrical rotor type: causes no speed fluctuation and suitable for high-speed operation. Note: picture of a pumpkin plantWeb9 Jun 2024 · Cylindrical Pole Type; Unlike Salient Pole type alternator, the alternator construction of Cylindrical Pole type includes either 2 or 4 poles. Due to the number of poles, the rotor diameter is small and yet again unlike the previous one, its axial length is larger. ... The slip rings are used to smooth the process and the brushes collect the ... topek high school swimsuits optimumsportsWeb31 Dec 2024 · Non-salient pole rotors, also known as smooth cylindrical rotors or drum rotors, are a type of rotor used in electric machines that have a smooth, cylindrical shape … top elcomWeb20 Jun 2024 · A non-salient pole (cylindrical) rotor is for 2- or 4-pole machinery. Such a design offers a higher mechanical force and allows a more precise dynamic balance. Non-salient pole rotor is usually powered by steam or combustion turbines. It is made from solid steel. Also, non-salient pole rotors have parallel slots to position rotor windings in ... topek scriptWeb25 Mar 2015 · On the other hand, the smooth cylindrical (round) rotors are characterised by smaller diameters and larger axial lengths. They are mechanically stable even at high rps … topek portsmouthWeb31 Oct 2016 · They are smaller in diameter but having longer axial length. Cylindrical rotors are used in high speed electrical machines, usually 1500 RPM to 3000 RPM. Windage loss … topeka zoo boo at the zooWebPole rotors have a wide width and short axial length. They are usually used in low-speed electric machines, say 100 revolutions per minute (RPM) to 1500 RPM. As the rotor speed … topeka zoo hours of operation