Write down the reasons why motors draw overcurrent from the mains and the names and protection...

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Mechanical Engineering

Write down the reasons why motors draw overcurrent from themains and the names and protection types of motor protection relaysused against this risk.
COMMAND AND POWER CIRCUIT IS A WHOLE IN QUESTIONS
The control circuit of the three asynchronous motors by answeringthe following requests
A) The second engine will not operate while the first or thirdengine is running
B) While the first or second engine is running, the third enginewill not work.
C) When the first motor is stopped due to over current or bypressing the stop button, all
engines will stop.
D) Each engine can be operated separately.

Answer & Explanation Solved by verified expert

3.8 Ratings (711 Votes)

The Main 5 reasons for motor draw over current are Electrical overload Low Resistance Over heating Contamination Vibration Electrical overload Excessive current than the designed level flowing through the motor windings This can be caused because of low voltage supply Prevention An over currene detector can be installed which detects the over current and cutoff the supply See Answer

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