S. S. P. Packaging Industries Service Engineer Interview Questions and Answers

PLC stands for Programmable Logic Controller. It is a digital computer used for automation of electromechanical processes.

• PLCs are used in various industries such as manufacturing, automotive, food processing, and more

• They are used to control machinery and processes, such as assembly lines, robotic devices, and packaging systems

• PLCs can be programmed to perform specific tasks based on input from sensors and other devic...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.

• VFD controls the speed and torque of an AC motor by varying the frequency of the electrical input.

• It converts fixed frequency and voltage AC power to variable frequency and voltage output.

• VFDs are commonly used in HVAC systems, industrial pumps, and conveyor ...read more

PCD and CCD are important parameters for star delta and R-Dol starters.

• PCD stands for Phase Changeover Delay, which is the time delay between switching from star to delta connection in a motor starter.

• CCD stands for Current Changeover Delay, which is the time delay between switching from star to delta connection in a motor starter.

• In star delta starters, PCD and CCD are crucial for ensuring smooth transition and preven...read more