Consider the following statements: 1. Salient pole alternators have small diameters and large axial lengths. 2. Cylindrical rotor alternators have a distributed winding 3. Cylindrical rotor alternators are wound for large number of poles 4. Salient pole alternators runs at speeds slower than cylindrical rotor machines Which of the above statements are correct?

1 and 3 only
2 and 4 only
1 and 4 only
2 and 3 only

LohaHridoy

4 views

2025-01-04 04:42

1 Answers

AhmedNazir

Option 2 : 2 and 4 only

Non-salient pole type rotors are used in high-speed alternators having speed between 1500 rpm to 3000 rpm.

Salient pole rotors are used in low-speed devices, from 100 rpm to 1500 rpm.

Salient pole rotor	Cylindrical rotor
Large diameter and short axial length	Small diameter and long axial length
used for low-speed alternators	Used for high-speed turbo alternators
Hasprojecting poles	Has no projecting poles
Needs damper windings	Do not need damper windings
Windage loss is more	Windage loss is less

4 views Answered 2022-09-04 04:29

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