State functions of the following parts of d.c motor: (i) Pole shoe (ii) Commutator (iii) Brushes (iv) Yoke.
What are the functions of brushes in a DC Machine?
What material is used to make brushes in a DC Machine?
What is the main purpose of the commutator and brushes?
How many steps are in a stepper motor?
What are the applications of a split-phase motor drive in power electronics?
Why motor are rated as KW while transformer rated in kVA?
What are the different methods for the starting of a synchronous motor ?
What are three advantages of a DC motor?
What are the characteristics of a DC motor?
What are the parts of a DC motor?
The power input to a 500V 50Hz 6Pole 3 phase induction motor running at 975 rpm is 40 kW. The stator losses are 1kW and friction and windage losses are 2kW. Calculate: (i) Slip (ii) Rotor copper loss (iii) Shaft power (iv) Efficiency
What are the disadvantages of a bipolar stepper motor?
What are the advantages of a bipolar stepper motor?
What are 2 main differences between a motor and a generator?
What are the two main parts of a synchronous motor?
What are the characteristics of a synchronous motor?
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