Question

A 230 V, 650 rpm, 100 A separately excited DC motor has armature resistance and inductance of 0.08 ohm and 8 mH respectively. The motor is controlled by a single-phase half-controlled rectifier with a source voltage of 230 V, 50 Hz. Identify the modes and calculate speeds for: (a) α = 60° and torque 1000 N-m (b) α = 120° and torque 1000 N-m

Name: a 230 v 650 rpm 100 a separately excited dc motor has armature resistance and inductance of 008 ohm and 8 mh respectively motor is controlled by a single phase half controlled rectifier with 51633
Uploaded: 2023-03-14T16:07:51-08:00
Duration: 3 min 14 s
Channel: Sri K
Description: a 230 v 650 rpm 100 a separately excited dc motor has armature resistance and inductance of 008 ohm and 8 mh respectively motor is controlled by a single phase half controlled rectifier with 51633

          A 230 V, 650 rpm, 100 A separately excited DC motor has armature resistance and inductance of 0.08 ohm and 8 mH respectively. The motor is controlled by a single-phase half-controlled rectifier with a source voltage of 230 V, 50 Hz. Identify the modes and calculate speeds for:
(a) α = 60° and torque 1000 N-m
(b) α = 120° and torque 1000 N-m

Added by Melissa P.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Sri K

03/14/2023

Step 1

- The motor is a 230 V, 650 rpm, 100 A separately excited DC motor. - Armature resistance (R_a) = 0.08 ohms. - Armature inductance (L_a) = 8 mH = 0.008 H. - Source voltage = 230 V, 50 Hz. - Torque (T) = 1000 N-m for both cases. - The firing angle (α) changes for Show more…

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A 230 V, 650 rpm, 100 A separately excited DC motor has armature resistance and inductance of 0.08 ohm and 8 mH respectively. The motor is controlled by a single-phase half-controlled rectifier with a source voltage of 230 V, 50 Hz. Identify the modes and calculate speeds for: (a) α = 60° and torque 1000 N-m (b) α = 120° and torque 1000 N-m