Power Grid Corporation of India Shift Incharge Engineer Interview Questions, Process, and Tips

CVT in transmission line works by continuously varying the gear ratio to provide smooth acceleration and optimal engine performance.

• CVT uses a belt and pulley system to vary the gear ratio based on engine speed and load

• It provides seamless acceleration without the need for traditional gear shifts

• CVT allows the engine to operate at its most efficient RPM range for better fuel economy

• Examples of vehicles with CVT include

A wave trap is a device used in electrical systems to filter out unwanted high-frequency signals.

• Wave traps are typically used in power systems to prevent high-frequency currents from flowing back into the system.

• They are designed to have a high impedance at the frequency of the unwanted signal, effectively blocking it from passing through.

• Wave traps can be installed on transmission lines or connected to transformers t...read more

Testing of transformer involves various electrical tests to ensure its performance and safety.

• Routine tests include turns ratio test, insulation resistance test, and winding resistance test.

• Type tests include temperature rise test, impulse test, and short circuit test.

• Special tests may include partial discharge test and noise level test.

• Testing is crucial to ensure the transformer meets specifications and standards for...read more

PRV stands for Pressure Relief Valve, a safety device designed to protect equipment from overpressure by releasing excess pressure.

• PRVs are commonly used in industries such as oil and gas, chemical, and manufacturing.

• They are designed to open when the pressure inside a system exceeds a certain set point, allowing the excess pressure to be released.

• PRVs help prevent catastrophic failures and protect equipment from damag...read more