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What is a motor used for?
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Why back emf used for a dc motor? highlight its significance.

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State at least one function and the material used for the following parts of a DC motor.

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State the insulating materials used in motor. Write temperature class and withstand temperature ranges for them.

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How is induction used in a motor?
Answer : Induction is a key principle in electric motors, specifically in **induction motors**. In these motors, induction is used to create motion without requiring physical contact. Here's how it works in ... reliable, efficient, and can be used in many applications like fans, pumps, and conveyor belts....

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What principle is used in a non synchronous AC motor?

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What are Motor Generator Sets and explain the different ways the motor generator set can be used ?

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Can motor be used as generator?
Answer : Yes, a motor can be used as a generator. In fact, many types of motors can work both as motors and generators, depending on how they are connected and used. Here's how it works: - **Motor** ... used as a generator if mechanical energy (from a moving part like a wheel or turbine) is supplied to it....

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A motor has to exert power starting from zero and rising uniformly to 150 HP in 8 mins after which it works at constant power of 100 HP for 5 mins. The motor remains on no load for next 5 mins. The cycle again starts and repeats indefinitely. Determine suitable size of motor.

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How do you wire a three-phase motor for industrial applications?

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What is the advantage of using a variable frequency drive (VFD) for motor control?

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What are the different methods for the starting of a synchronous motor ?

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Explain with the help of a neat diagram the following methods of speed control for a DC series motor: (i) Field diverter method. (ii) Tapped field method.

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Explain the necessity of a starter for a DC motor. State various types of DC motor starters.

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Explain working of autotransformer starter for a 3 phase induction motor with neat diagram.

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Explain the reason for a single phase induction motor being not self-starting.

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What is the effect of a decrease in the load for a DC motor?

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What is the effect of an increase in the load for a DC motor?

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What type of single-phase induction motor would you use for specific applications like a ceiling fan or wet grinder?

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Derive the condition for maximum torque under running condition of a 3 phase induction motor.

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