Ib Automation Engineering Projects Electrical Design Engineer Interview Questions and Answers

PLC and card selection depends on the application requirements and budget.

• Identify the required inputs and outputs

• Consider the communication protocols needed

• Evaluate the processing power and memory requirements

• Determine the budget and cost of ownership

• Research and compare different brands and models

• Consider the availability of technical support and spare parts

• Ensure compatibility with existing systems

• Consider the envir

DOL starter directly connects the motor to the power supply, while Star-Delta starter initially connects the motor in star configuration before switching to delta configuration.

• DOL starter provides full voltage to the motor from the start, causing high starting current and torque.

• Star-Delta starter reduces the starting current and torque by initially connecting the motor in star configuration, then switching to delta c...read more

VFD stands for Variable Frequency Drive. It is a type of motor controller that drives an electric motor by varying the frequency and voltage supplied to the motor.

• VFDs are used to control the speed and torque of AC motors in various applications.

• They work by converting fixed frequency and voltage AC power to variable frequency and voltage output.

• VFDs can improve energy efficiency, reduce wear and tear on motors, and pr...read more

Circuit breakers are electrical switches designed to protect electrical circuits from damage caused by overload or short circuit.

• Circuit breakers automatically trip when they detect an overload or short circuit in the electrical system.

• They interrupt the flow of electricity to prevent damage to the circuit or electrical devices.

• Circuit breakers can be reset manually after tripping to restore power to the circuit.

• There ...read more

Automatic Transfer Switches are devices used to automatically switch power sources in case of a power outage.

• Types of automatic transfer switches include open transition, closed transition, and delayed transition.

• Examples of automatic transfer switch manufacturers include Generac, Eaton, and Schneider Electric.

• Automatic transfer switches are commonly used in backup power systems for critical facilities like hospitals,