Question
Download Solution PDFA 50 Hz 4 pole single phase motor is running with a slip 3.4%. The speed of the motor is
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
Synchronous speed is given as:
Slip is given as:
Nr = (1 - s) Ns
Where,
Nr = Rotor speed in rpm
f = Supply frequency in Hz
P = Number of poles
Calculation:
Given-
f = 50 Hz, P = 4,
s = 3.4% = 0.034
Now synchronous speed can be calculated as
Hence, speed of the 1 -ϕ motor is
Nr = (1 - 0.034) x 1500
Nr = 1449 rpm
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