Question

A separately excited DC motor fed through a single-phase semi-converter runs at a speed of 1200 rpm when AC supply voltage is 230V, 50 Hz, and the motor counter emf is 140V. The firing angle delay is 50 degrees. The armature circuit resistance is 3 ohms. Find the value of the motor torque and average armature current.

Name: a separately excited dc motor fed through asingle phase semi converter runs at a speed of 1200 rpm when acsupply voltage is 230v 50 hzs and the motor counter emf is 140vthe firing angle dela 26066
Uploaded: 2023-01-07T09:35:39-08:00
Duration: 2 min 5 s
Channel: Sri K
Description: a separately excited dc motor fed through asingle phase semi converter runs at a speed of 1200 rpm when acsupply voltage is 230v 50 hzs and the motor counter emf is 140vthe firing angle dela 26066

          A separately excited DC motor fed through a single-phase semi-converter runs at a speed of 1200 rpm when AC supply voltage is 230V, 50 Hz, and the motor counter emf is 140V. The firing angle delay is 50 degrees. The armature circuit resistance is 3 ohms. Find the value of the motor torque and average armature current.

Added by Gregorio M.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Sri K

01/07/2023

Step 1

Given: \[ V_{AC} = 230 \text{ V (RMS)} \] Show more…

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A separately excited DC motor fed through a single-phase semi-converter runs at a speed of 1200 rpm when AC supply voltage is 230V, 50 Hz, and the motor counter emf is 140V. The firing angle delay is 50 degrees. The armature circuit resistance is 3 ohms. Find the value of the motor torque and average armature current.