Neel Metal Products Electrical Technician Interview Questions and Answers

Apti,core subject in engineering

Q1. Basic HR ques,Core sub,project , vocational training
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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...read more
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Q2. How to do id run test on vfd?
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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
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Q1. Related to work done in my current organisation, plc programming, instrumentation work related like RTD & thermocouple , electrical machines, transformers , motor and VVVF drives .
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Q2. Vvvf drives working , siemens plc .
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Q1. Background and family related.
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Q1. How many parts of sfc panels
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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...read more
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Q2. How to slip-ring motor speed control
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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...read more
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Q3. Add to external resistance
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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...read more
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Q4. Main parts of eot cranes
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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...read more
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Q5. Why used slip-ring motor in eot cranes
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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...read more
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Q1. Background and family related.
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