Jk Power Electrical Site Engineer Interview Questions and Answers

Q1. Basic electrical engineering
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Q2. Transmission line transformer electrical wiring etc
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Q1. What is impidance,DGR FUNDAMENTAL AND BASICS
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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
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Basic information about simens gamesa under knowledge

Q1. Family related and old company behaviour for work . sallary decision
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Q1. Wtg working? And yaw drive system operation process.
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WTG stands for Wind Turbine Generator. Yaw drive system is responsible for orienting the turbine blades into the wind.
• WTG converts wind energy into electrical energy

• Yaw drive system rotates the nacelle to face the wind

• Yaw drive system consists of yaw motor, yaw brake, and yaw bearing

• Yaw motor receives signals from the controller to rotate the nacelle

• Yaw brake holds the nacelle in position during maintenance or high win...read more
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Q1. What is Plant load factor
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Plant load factor is a measure of the actual output of a power plant compared to its maximum possible output.
• Plant load factor is calculated by dividing the actual energy generated by the plant over a specific period by the maximum possible energy that could have been generated during the same period.

• It is expressed as a percentage and indicates how efficiently a power plant is being utilized.

• A high plant load factor i...read more
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Q2. What is machine availablity and how to calculate it
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Machine availability is the percentage of time a machine is able to be used for its intended purpose.
• Machine availability is calculated by dividing the total operating time by the total time in a given period, then multiplying by 100.

• For example, if a machine operates for 800 hours in a month and there are 1000 total possible operating hours, the availability would be 80%.

• Factors like downtime, maintenance, and repairs...read more
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Q1. What is Transformer
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A transformer is an electrical device that transfers electrical energy between two or more circuits through electromagnetic induction.
• Transformers are used to increase or decrease the voltage in an electrical circuit.

• They consist of two or more coils of wire, known as windings, that are wound around a core made of magnetic material.

• The primary winding receives electrical energy from a power source, while the secondary ...read more
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Q2. What is rectifier
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A rectifier is an electrical device that converts alternating current (AC) to direct current (DC).
• Rectifiers are commonly used in power supplies to convert AC voltage to DC voltage.

• They are made up of diodes, which allow current to flow in only one direction.

• Rectifiers can be half-wave or full-wave, depending on the number of diodes used.

• Examples of rectifiers include bridge rectifiers, vacuum tube rectifiers, and soli...read more
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