Question

A 220 V, 1500 rpm, 10 A separately excited DC motor is fed from a single-phase fully-controlled rectifier with an AC source voltage of 230 V, 50 Hz. Ra = 2 ohms. Conduction is assumed to be continuous. Calculate firing angles for (a) Half the rated motor torque and 1500 rpm. (b) Rated motor torque and -500 rpm.

Name: a 220 v 1500 rpm 10 a separately excited dc motor is fed from a single phase fully controlled rectifier with an ac source voltage of 230 v 50 hz ra2 ohms conduction isassumed to be continuou 82577
Uploaded: 2023-06-05T05:08:55-08:00
Duration: 5 min 46 s
Channel: Supreeta N
Description: a 220 v 1500 rpm 10 a separately excited dc motor is fed from a single phase fully controlled rectifier with an ac source voltage of 230 v 50 hz ra2 ohms conduction isassumed to be continuou 82577

          A 220 V, 1500 rpm, 10 A separately excited DC motor is fed from a single-phase fully-controlled rectifier with an AC source voltage of 230 V, 50 Hz. Ra = 2 ohms. Conduction is assumed to be continuous. Calculate firing angles for (a) Half the rated motor torque and 1500 rpm. (b) Rated motor torque and -500 rpm.

Added by Krystal Z.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Supreeta N

06/05/2023

Step 1

- The DC motor is rated at 220 V, 1500 rpm, and 10 A. - The armature resistance (Ra) is 2 ohms. - The motor is fed from a single-phase fully-controlled rectifier with an AC source of 230 V, 50 Hz. - We need to calculate the firing angles for two scenarios: (a) Show more…

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A 220 V, 1500 rpm, 10 A separately excited DC motor is fed from a single-phase fully-controlled rectifier with an AC source voltage of 230 V, 50 Hz. Ra = 2 ohms. Conduction is assumed to be continuous. Calculate firing angles for (a) Half the rated motor torque and 1500 rpm. (b) Rated motor torque and -500 rpm.