Bangalore Electricity Supply Company Electrical Technician Interview Questions and Answers

A motor is a device that converts electrical energy into mechanical energy to perform work.

• Motors are commonly used in various applications such as electric vehicles, industrial machinery, and household appliances.

• They come in different types such as AC motors, DC motors, and stepper motors.

• Motor capacity refers to its power rating, typically measured in horsepower (HP) or kilowatts (kW).

• Higher capacity motors can gene...read more

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...read more

Ohm's law states that the current through a conductor between two points is directly proportional to the voltage across the two points.

• Ohm's law is represented by the equation I = V/R, where I is the current, V is the voltage, and R is the resistance.

• It is named after Georg Simon Ohm, a German physicist who first formulated this law.

• This law is applicable to all types of circuits, including DC and AC circuits.

• It is use...read more

Manage subcontractors and stakeholders by clear communication, setting expectations, regular updates, and addressing concerns promptly.

• Establish clear communication channels with subcontractors and stakeholders

• Set clear expectations and goals for the project

• Provide regular updates on project progress and milestones

• Address any concerns or issues promptly to maintain good relationships

• Hold regular meetings to discuss pro...read more

WTG stands for Wind Turbine Generator. Yaw drive system is responsible for orienting the turbine blades into the wind.

• WTG converts wind energy into electrical energy

• Yaw drive system rotates the nacelle to face the wind

• Yaw drive system consists of yaw motor, yaw brake, and yaw bearing

• Yaw motor receives signals from the controller to rotate the nacelle

• Yaw brake holds the nacelle in position during maintenance or high win

To look for a short circuit, check for any abnormal connections or damaged wires causing a direct path for current flow.

• Inspect all wiring and connections for signs of damage or wear

• Use a multimeter to test for continuity and resistance in the circuit

• Look for any burnt or melted components indicating a short circuit

• Check for any loose connections or exposed wires that could be causing a short circuit