Question

The input to a 220 V DC shunt motor is 11 kW. Calculate (a) the torque developed, (b) the efficiency, and (c) the speed at this load when the following particulars of the motor are given: no-load current = 5 A; no-load speed = 1150 rpm; armature resistance = 0.5 Ω; shunt-field resistance = 110 Ω.

Name: the input to a 220 v dc shunt motor is 11 kw calculate a the torque developed b the effi ciency and c the speed at this load when the following particulars of the motor are given no load cur 89463
Uploaded: 2022-12-14T07:02:51-08:00
Duration: 3 min 20 s
Channel: Sri K
Description: the input to a 220 v dc shunt motor is 11 kw calculate a the torque developed b the effi ciency and c the speed at this load when the following particulars of the motor are given no load cur 89463

          The input to a 220 V DC shunt motor is 11 kW. Calculate (a) the torque developed, (b) the efficiency, and (c) the speed at this load when the following particulars of the motor are given: no-load current = 5 A; no-load speed = 1150 rpm; armature resistance = 0.5 Ω; shunt-field resistance = 110 Ω.

Added by Amanda L.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Sri K

12/14/2022

Step 1

\[ I_f = \frac{V}{R_f} = \frac{220 \text{ V}}{110 \text{ Ω}} = 2 \text{ A} \] Show more…

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The input to a 220 V DC shunt motor is 11 kW. Calculate (a) the torque developed, (b) the efficiency, and (c) the speed at this load when the following particulars of the motor are given: no-load current = 5 A; no-load speed = 1150 rpm; armature resistance = 0.5 Ω; shunt-field resistance = 110 Ω.