Venus Remedies Interview Questions, Process, and Tips

Star delta starter is used in induction motors to reduce starting current and torque.

• Reduces starting current by starting the motor in star connection and then switching to delta connection

• Reduces starting torque to prevent mechanical stress on the motor and connected equipment

• Suitable for applications where high starting current and torque are not required, such as fans, pumps, and compressors

This can be achieved by changing the phase sequence of the motor.

• Motor direction can be changed by swapping any two of the three-phase wires.

• This will change the phase sequence and hence the direction of rotation.

• For example, swapping wires A and B in a three-phase motor will change the direction of rotation.

PLC stands for Programmable Logic Controller.

• PLC is a digital computer used for automation of electromechanical processes.

• It is commonly used in industries to control machinery and processes.

• PLCs are programmed using specialized software to perform specific tasks.

• Examples of PLC brands include Siemens, Allen-Bradley, and Mitsubishi.

An automatically plant is a facility where various processes are controlled and operated automatically without the need for constant human intervention.

• Automatically controlled processes

• Utilizes sensors and programmable logic controllers (PLCs)

• Reduces the need for manual labor

• Examples: automated assembly lines, robotic manufacturing plants