Identify the type of motor shown in the given figure.

F3 Vinanti Engineering 09.01.23 D1

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PGCIL DT Electrical 12 March 2022 (NR II) Official Paper
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  1. Short shunt compound motor 
  2. Short shunt series motor
  3. Long shunt compound motor
  4. Long shunt series motor

Answer (Detailed Solution Below)

Option 3 : Long shunt compound motor
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Detailed Solution

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Based on the connection of armature and field windings DC generators can be classified as:

Type of DC Machine

Circuit diagram

Separately excited DC generator

F1 U.B Deepak 31.12.2019 D 6

DC shunt generator

F1 U.B Deepak 31.12.2019 D 7

DC series generator

F1 U.B Deepak 31.12.2019 D 8

DC short shunt compound generator

F1 U.B Deepak 31.12.2019 D 9

DC long shunt compound generator

F1 U.B Deepak 31.12.2019 D 10


Therefore, the machine shown in the question represents a DC long shunt compound generator.

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