Question

74. Which of the following motor is expected to have
the least value of slip?
(A) 1 HP, 4 pole (B) 2 HP, 6 pole
(C) 5 HP, 6 pole (D) 25 HP, 4 pole​

Answer 1

Explanation:

The frequency of rotor current will be. (a) 50 Hz. (b) 25 Hz. (c) 5 Hz. (d) 2 Hz. Multiple ... 6. A 4 pole, 3 phase, 50 Hz induction motor runs at a speed of. 1470 r.p.m. speed. ... are required as in lifts and cranes.

Answer 2

Option D) 25 HP, 4 pole​

The motor is expected to have the least value of slip.

• Slip is simply the difference in speed between the two rotating parts of an electrical coupling. Slip is a measurement of the discrepancy between the machine's synchronous speed and shaft speed in an induction motor.
• Offering 201-300 KW Siemens ABB 25hp Motor 4 Pole, IP Rating: IP55 for Rs 140000 in Ahmedabad, Gujarat is Patel Engineering. Check out the business.
• Slip is the term for the discrepancy between the rotor's synchronous and actual speeds. The motor's slide is equal at startup. When the motor begins to accelerate, the slip diminishes until it is around 3-5% of the synchronous speed of the IM at the rated KW.
• The term "slip" refers to the discrepancy between a motor's synchronous speed and its actual speed. It is established mathematically by. The value was calculated to be 1800 RPM using the example above for synchronous speed of a motor with four poles working at 60 hertz.

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