Sharika Enterprises Electrical Engineer Interview Questions and Answers

A star delta starter is a type of motor starter used to reduce the starting current of a motor.

• Connect the motor windings in a star configuration for starting

• Switch the motor windings to a delta configuration once it reaches a certain speed

• Use a contactor and timer to control the switching

• Commonly used for large motors to reduce starting current and prevent damage to the motor

• Requires knowledge of motor wiring and cont

Power saving refers to reducing energy consumption to conserve resources and reduce costs.

• Using energy-efficient appliances and light bulbs

• Turning off electronics when not in use

• Using power strips to easily turn off multiple devices

• Adjusting thermostat settings to reduce heating and cooling

• Using renewable energy sources like solar panels

• Implementing energy-saving practices in industries and businesses

DG sets have various protection mechanisms to ensure safe and efficient operation.

• Overload protection

• Short circuit protection

• Under/over voltage protection

• Over/under frequency protection

• Reverse power protection

• Earth fault protection

• Cooling system protection

• Fuel system protection