Silicon steel used in laminations mainly reduces hysteresis loss.
Description : 70] Silicon steel used in laminations mainly reduces A. Hysteresis loss B. Eddy current losses C. Copper loss D. All of the above
Answer : A. Hysteresis loss
Answer : The thickness of laminations used in a transformer is usually 0.4 mm to 0.5 mm.
Answer : The transformer laminations are insulated from each other by thin coat of varnish.
Description : The hum in a transformer is mainly attributed to?
Answer : The hum in a transformer is mainly attributed to magnetostriction.
Description : Laminations of core are generally made of (a) case iron (b) carbon (c) silicon steel (d) stainless steel