- 200 Hz
- 50 Hz
- 2 Hz
- 0.2 Hz
- 120 dB (A)
- 130 dB (A)
- 140 dB (A)
- 115 dB (A)
- 90 dB (A)
- 85 dB (A)
Q) A 3-phase 440 V, 50 Hz induction motor has 4% slip. The frequency of rotor current will be
Solution:
The frequency of rotor current fr = s*f
F is the frequency of the supply current
S is the slip of the induction motor
fr = 50 X 4/100 = 2 Hz
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