Top 100+ Electrical Drives Interview Questions And Answers
Question 1. Name Some Of The Various Methods Of Traction Motor Control?
Answer :
Rheostatic control
Thyristor manage
Metaldyne manage
Buck and improve technique
Series parallel manipulate
Field manipulate
Question 2. What Are The Basic Requirements Of A Braking System?
Answer :
The basic requirements of a braking machine is given below.
Easy to use for driver to operate.
It need to be inexhaustible.
The protection must be a minimum.
It ought to be simple, short, robust and dependable in movement.
Kinetic energy of the train be garage for the duration of braking which might be used eventually at some stage in acceleration of the train.
Electrical and Electronics Engineering Interview Questions
Question 3. What Are The Various Methods Of Applying Electric Traction?
Answer :
There are three techniques of applying electric powered braking.
They are:
Plugging or reverse modern braking
Rheostatic braking
Regenerative braking
Question four. Give Some Of Advanced Methods Of Speed Control Of Traction Motors?
Answer :
Tap changer control
Thyristor manage
Chopper manipulate
Microprocessor manage
Question five. What Are The Advantages Of Microprocessor Based Control Of Traction Motors?
Answer :
High pace of response
High accuracy
Over voltage and over velocity protection
Electronic interlocking
Less touchy to temperature versions and glide
Numbers of additives used are less
Electrical Engineering Interview Questions
Question 6. Define Dead Weight And Adhesive Weight?
Answer :
Dead weight:
The total weight of locomotive and train to be pulled by the locomotive is called lifeless weight
Adhesive weight:
The general weight to be carried on the using wheels is referred to as the adhesive weight.
Question 7. What Is Tractive Effort?
Answer :
The effective pressure necessary to propel the teach at the wheels of the locomotive to which the motor is geared is known as the tractive effort. It is measured in newtons and is tangential to the riding wheels.
Total tractive attempt required to run a train on tract = Tractive effort to supply acceleration + Tractive effort to triumph over attempt of gravity + Tractive attempt to triumph over educate resistance.
BHEL Interview Questions
Question 8. Define Electric Drives?
Answer :
Systems employed for movement manage are referred to as as drives and drives appoint any of the top movers together with diesel or petrol engines, gasoline or steam turbines, hydraulic automobiles and electric powered motors for imparting mathematical electricity for movement manipulate. Drives using electric movement is known as as electric drives.
Question nine. What Are The Various Parts Of Electrical Drives?
Answer :
Electrical motors and load
Power Modulator
Sources
Control Unit
Sensing unit
Control Systems-Electrical Engineering Interview Questions
Question 10. What Are Various Advantages Of Electrical Drives?
Answer :
They are having bendy control traits. The look at nation and dynamic traits of electrical drives may be formed to meet load requirements.
Drives can be provided with computerized fault detection systems. PLCs and computer systems can be hired to robotically control the force operations in a favored collection.
Drives are available in wide variety of velocity, power and torque.
Control equipment required for velocity control, starting and braking is generally easy and easy to function.
It can function in all of the four quadrants of pace - torque plane. Electric braking offers clean deceleration and increases lifestyles of the gadget as compared to other varieties of braking.
