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Super Smelters Electrical Engineer Interview Questions, Process, and Tips
Top Super Smelters Electrical Engineer Interview Questions and Answers
- Q1. How to slip-ring motor speed control
- Q2. Why used slip-ring motor in eot cranes
- Q3. How many parts of sfc panels
Super Smelters Electrical Engineer Interview Experiences
2 interviews found
Selected
I applied via Approached by Company and was interviewed in Oct 2023. There was 1 interview round.
(2 Questions)
- Q1. Write the starter control circuit with explain?
- Ans.
A starter control circuit is used to control the starting and stopping of an electric motor.
The starter control circuit typically includes a start button, stop button, overload relay, and contactor.
When the start button is pressed, it energizes the contactor which allows power to flow to the motor.
The overload relay protects the motor from overheating by sensing the current drawn by the motor.
The stop button breaks the...
- Q2. How to do id run test on vfd?
- Ans.
To perform an id run test on a VFD, you need to follow specific steps to ensure the variable frequency drive is functioning correctly.
Connect the VFD to a motor and power supply
Set the VFD parameters according to the motor specifications
Run the motor at different speeds to test the VFD's ability to control the motor
Monitor the motor's performance and check for any abnormalities
Record the test results for analysis and t
Interview Preparation Tips
Selected
I applied via Campus Placement and was interviewed before May 2022. There were 2 interview rounds.
(5 Questions)
- Q1. How many parts of sfc panels
- Ans.
The number of parts in sfc panels varies depending on the specific panel and its design.
The number of parts can range from a few to several hundred.
Some common parts include solar cells, wiring, and protective coatings.
The number of parts can also depend on the size and power output of the panel.
Manufacturers may use different materials and designs, affecting the number of parts.
It is important to consider the number a...
- Q2. How to slip-ring motor speed control
- Ans.
Slip-ring motor speed can be controlled by varying the resistance in the rotor circuit.
Slip-ring motors have a wound rotor with external resistors.
By changing the resistance in the rotor circuit, the speed can be controlled.
This is done by adding or removing resistors from the rotor circuit.
The speed can also be controlled by changing the voltage applied to the stator.
This method is commonly used in industries where va...
- Q3. Add to external resistance
- Ans.
Adding external resistance increases the total resistance in a circuit.
External resistance can be added in series or parallel to the existing circuit.
This can be useful in controlling the current flow and voltage drop in the circuit.
For example, adding a resistor in series with an LED can limit the current flowing through it and prevent it from burning out.
Similarly, adding a resistor in parallel with a component can r...
- Q4. Main parts of eot cranes
- Ans.
Main parts of eot cranes include bridge, trolley, hoist, end trucks, runway beams, and electrical components.
Bridge: main structure that spans the width of the bay
Trolley: carries the hoist and moves horizontally along the bridge
Hoist: lifts and lowers the load
End trucks: located on either side of the bridge and house the wheels for movement
Runway beams: support the crane and provide a path for the crane to travel alon...
- Q5. Why used slip-ring motor in eot cranes
- Ans.
Slip-ring motors are used in EOT cranes for their ability to provide high starting torque and smooth acceleration.
Slip-ring motors offer high starting torque, making them suitable for heavy loads in EOT cranes.
They provide smooth acceleration, reducing wear and tear on the crane components.
Slip-ring motors allow for speed control and reversing capabilities, important in crane operations.
These motors are also able to ha...
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Interview questions from similar companies
(1 Question)
- Q1. Dol and star delta wiring scheme
- Ans.
DOL (Direct-On-Line) and star delta are two different wiring schemes used in electrical engineering for starting induction motors.
DOL wiring directly connects the motor to the power supply for starting, while star delta wiring initially starts the motor in star configuration and then switches to delta configuration for running.
DOL wiring is simpler and cheaper but causes high starting current, while star delta wiring r...
Interview Preparation Tips
I applied via Approached by Company and was interviewed in Jul 2022. There were 2 interview rounds.
(2 Questions)
- Q1. I am working from Grid sub station . Transformer... CT PT CVT EARTHING PTW
- Q2. All about 132 kv Gss
Interview Preparation Tips
I am Diploma Holder in Electrical Engineer
With Experience in 132kv Gss in 6.5 years.
Currently in adani Transmission last 4.3 years.
I am working from scada operating system.
Electrical Engineer Interview Questions & Answers
Calderys India Refractories
Anonymous
posted on 1 Aug 2021
Interview Questionnaire
7 Questions
- Q1. Electrical
- Q2. Transformer
- Q3. Vcb
- Q4. Acb
- Q5. Ocb
- Q6. Dol
- Q7. Star delta
DHANANJAY KUMAR
I applied via Newspaper Ad and was interviewed before Apr 2021. There were 3 interview rounds.
Hard work versus smart work.
(3 Questions)
- Q1. Why power plug earth wire is bigger in size?
- Ans.
The power plug earth wire is bigger in size to ensure safety and prevent electrical shocks.
The earth wire provides a path for the current to flow in case of a fault or short circuit.
A larger wire size reduces resistance and allows for the safe dissipation of excess current.
It helps to protect individuals and equipment from electric shock hazards.
The earth wire is connected to the ground, which acts as a reference point...
- Q2. Which conductor of same size will take larger current Al or Cu?
- Ans.
Copper (Cu) conductor will take larger current than Aluminum (Al) conductor of the same size.
Copper has a higher electrical conductivity than Aluminum.
Copper has a lower resistivity than Aluminum.
Copper has better thermal conductivity than Aluminum.
Copper is more commonly used in high-current applications.
Aluminum is often used in overhead power transmission lines due to its lighter weight.
- Q3. What is pulse width modulation in VFD?
- Ans.
Pulse width modulation (PWM) is a technique used in VFD to control the speed of the motor by adjusting the width of the pulses of voltage supplied to the motor.
PWM is a method of controlling the amount of power delivered to a load without changing the voltage level.
In VFD, PWM is used to control the speed of the motor by varying the width of the pulses of voltage supplied to the motor.
The width of the pulses is control...
Interview Preparation Tips
(1 Question)
- Q1. Dol and star delta wiring scheme
- Ans.
DOL (Direct-On-Line) and star delta are two different wiring schemes used in electrical engineering for starting induction motors.
DOL wiring directly connects the motor to the power supply for starting, while star delta wiring initially starts the motor in star configuration and then switches to delta configuration for running.
DOL wiring is simpler and cheaper but causes high starting current, while star delta wiring r...
Interview Preparation Tips
I applied via Approached by Company and was interviewed in Jul 2022. There were 2 interview rounds.
(2 Questions)
- Q1. I am working from Grid sub station . Transformer... CT PT CVT EARTHING PTW
- Q2. All about 132 kv Gss
Interview Preparation Tips
I am Diploma Holder in Electrical Engineer
With Experience in 132kv Gss in 6.5 years.
Currently in adani Transmission last 4.3 years.
I am working from scada operating system.
Electrical Engineer Interview Questions & Answers
Calderys India Refractories
Anonymous
posted on 1 Aug 2021
Interview Questionnaire
7 Questions
- Q1. Electrical
- Q2. Transformer
- Q3. Vcb
- Q4. Acb
- Q5. Ocb
- Q6. Dol
- Q7. Star delta
I applied via Newspaper Ad and was interviewed before Apr 2021. There were 3 interview rounds.
Hard work versus smart work.
(3 Questions)
- Q1. Why power plug earth wire is bigger in size?
- Ans.
The power plug earth wire is bigger in size to ensure safety and prevent electrical shocks.
The earth wire provides a path for the current to flow in case of a fault or short circuit.
A larger wire size reduces resistance and allows for the safe dissipation of excess current.
It helps to protect individuals and equipment from electric shock hazards.
The earth wire is connected to the ground, which acts as a reference point...
- Q2. Which conductor of same size will take larger current Al or Cu?
- Ans.
Copper (Cu) conductor will take larger current than Aluminum (Al) conductor of the same size.
Copper has a higher electrical conductivity than Aluminum.
Copper has a lower resistivity than Aluminum.
Copper has better thermal conductivity than Aluminum.
Copper is more commonly used in high-current applications.
Aluminum is often used in overhead power transmission lines due to its lighter weight.
- Q3. What is pulse width modulation in VFD?
- Ans.
Pulse width modulation (PWM) is a technique used in VFD to control the speed of the motor by adjusting the width of the pulses of voltage supplied to the motor.
PWM is a method of controlling the amount of power delivered to a load without changing the voltage level.
In VFD, PWM is used to control the speed of the motor by varying the width of the pulses of voltage supplied to the motor.
The width of the pulses is control...
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