3 Duties of induction motors - Electrical Engineering Book
3/68 Electrical Power Engineering Reference & Applications Handbook F = electric braking and q t = temperature rise attained during one duty cycle 11 2 2 3 = corresponding to the no-load heating. For this duty cycle also, the abbreviation is followed by the indication of number of cycles per hour and the FI. For example, for 300 c/h and FI 2.5 S7 – 300 c/h FI – 2.5
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