Tata Power Site Engineer Interview Questions and Answers for Experienced

Impedance is the measure of opposition to the flow of electric current in a circuit. DGR fundamental refers to the Dielectric Withstand Voltage test.

• Impedance is measured in ohms and is the combination of resistance, capacitance, and inductance in a circuit.

• DGR fundamental is a test to determine the maximum voltage a material can withstand without breaking down.

• Basics of impedance include understanding the relationship...read more

Pulling sub-stesan experience

• Sub-stesan refers to a subset of a larger system or process

• Pulling sub-stesan experience means extracting relevant information from a smaller part of a system

• This experience can be useful in identifying and solving specific quality issues

• Examples include analyzing data from a specific production line or testing a particular component of a product

A sinusoidal wave is a type of wave that has a smooth, repetitive oscillation resembling a sine curve.

• Sinusoidal waves are characterized by their amplitude, frequency, and phase.

• They are commonly seen in AC electrical circuits, sound waves, and light waves.

• The equation for a sinusoidal wave is typically represented as y = A*sin(2*pi*f*t + phi), where A is the amplitude, f is the frequency, t is time, and phi is the pha...read more

Peak factor is the ratio of peak value to the RMS value of a waveform.

• Peak factor is used to quantify the peakiness of a waveform.

• It is calculated by dividing the peak value of the waveform by its RMS value.

• A higher peak factor indicates a more peaky waveform with larger peaks relative to the average value.

• Peak factor is important in signal processing and power systems analysis.

The stator and rotor are key components of an electric motor. The stator is the stationary part that generates a magnetic field, while the rotor is the rotating part that interacts with the magnetic field to produce motion.

• Stator is the stationary part of an electric motor

• Stator generates a magnetic field

• Rotor is the rotating part of an electric motor

• Rotor interacts with the magnetic field generated by the stator to pr

Distribution voltage refers to the voltage level at which electricity is distributed from substations to consumers.

• Distribution voltage typically ranges from 4 kV to 33 kV for residential and commercial areas.

• Higher distribution voltages, such as 66 kV or 132 kV, are used for industrial areas or large consumers.

• The choice of distribution voltage depends on factors like distance, load requirements, and cost.

• Transformers...read more