For a certain dynamometer ammeter, the mutual inductance (M) varies with deflection º asM = -6cos (0+30°) mH. Find the deflecting torque produced by a direct current of 50 mAcorresponding to a deflection of 60°.

Given a dynamometer ammeter having, The mutual inductance varies with deflection θ as, M=-6 cosθ+30°…

For a certain dynamometer ammeter, the mutual inductance (M) varies with deflection 8° as M = -6cos (0+30°) mH. Find the deflecting torque produced by a direct current of 50 mA corresponding to a deflection of 60°.

For a certain dynamometer ammeter, the mutual inductance (M) varies with deflection 8° as M = -6cos (0+30°) mH. Find the deflecting torque produced by a direct current of 50 mA corresponding to a deflection of 60°.

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)

10th Edition

ISBN:9781337399128

Author:Russell E. Smith

Publisher:Russell E. Smith

Chapter7: Alternating Current, Power Distribution, And Voltage Systems

Section: Chapter Questions

Problem 11RQ

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Concept explainers

Winding and Constructions

Alternating Current (AC) winding is generally of the 3-phase type due to the inherent advantages of the 3-phase machine. Armature coils must be connected to the yield balance (equivalent in magnitude and 2/3 of the series phase difference of the rod) 3-phase electromotive forces (emf). The armature should be divided into step-bands to start with slots around the perimeter.In the construction of AC machines, the frame is used as an external protective shield to protect it from environmental conditions. The frame also serves as the outer perimeter, allowing the interior to be easily placed. The static state section of the devices is the stator winding attached stator.

Question

For a certain dynamometer ammeter, the mutual inductance (M) varies with deflection º as
M = -6cos (0+30°) mH. Find the deflecting torque produced by a direct current of 50 mA
corresponding to a deflection of 60°.

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