Tata Power Solar Lead Maintenance Engineer Interview Questions and Answers

Basic electrical fundamentals

Q1. Experiences in solar plant operations and maintenance
Ans. 
I have extensive experience in solar plant operations and maintenance.
• Managed the operations and maintenance of a 50 MW solar plant for 3 years

• Developed and implemented preventive maintenance schedules to ensure optimal performance

• Performed regular inspections and troubleshooting to identify and resolve issues

• Coordinated with technicians and contractors for repairs and upgrades

• Implemented safety protocols and trained s...read more
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Q2. Problems solving and issue rectification and case studies
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Q3. Solar plant maintenance faults and rectification
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Q1. Detailed Drawing
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Q2. What is the unit weight of steel
Ans. 
The unit weight of steel is typically around 7850 kg/m^3.
• The unit weight of steel is commonly used in construction and engineering to calculate the weight of steel structures.

• The unit weight of steel is typically around 7850 kg/m^3, but can vary depending on the type of steel.

• For example, the unit weight of stainless steel is around 7480 kg/m^3, while the unit weight of carbon steel is around 7850 kg/m^3.
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Q1. Discuss about CTC
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CTC stands for Cost to Company, which includes all expenses related to an employee's salary and benefits.
• CTC includes salary, bonuses, benefits, and any other perks provided by the company.

• It is the total amount of money a company spends on an employee in a year.

• CTC is different from take-home salary as it includes all expenses incurred by the company for the employee.

• Employer's contribution to PF, insurance, and other...read more
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Q1. Yes I'm Sudhakar potharaj Renew power solar in working....
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Q2. I'm Sudhakar potharaj
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Q3. Electrical in Technician
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Q4. Working in maski site
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Q1. Transformers and generators at wtg questions
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Q2. HT and WTG G-97 & G-114 wtg model questions
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Q1. Line diagram of WTG
Ans. 
A line diagram of a wind turbine generator (WTG) shows the flow of energy from wind to electricity.
• The diagram typically includes the rotor blades, gearbox, generator, and power electronics

• The blades capture wind energy and turn the rotor, which drives the gearbox

• The gearbox increases the rotational speed and sends it to the generator

• The generator converts the rotational energy into electrical energy

• The power electroni...read more
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Q2. Working of DFIG converters
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DFIG converters are used in wind turbines to convert variable frequency AC power to DC power and back to AC power.
• DFIG stands for Doubly Fed Induction Generator

• The converter consists of two back-to-back voltage source converters

• One converter controls the rotor current and the other controls the grid current

• The rotor current is controlled to maintain a constant torque on the turbine

• The grid current is controlled to main...read more
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Q1. Rejection analysis
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Q2. Measurement system analysis
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Q1. Failure mode effects analysis
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Q2. Controlling mathod
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Q1. Statistics process control
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Q2. Instrument measurement
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Q1. Work related & salary related
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Q2. Know whatworking
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Q1. Know what works
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Q2. Langauge speaking
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Solar Manufacturing in all process
And knowledge curing line operat and other process in solar Manufacturing as tapping,stringer Machine,cell loading,Eva loading,tapping and other

I am operate curing line to Testing line,as Solar loding robot Machine and unloading blanking Manipulator Machine and handling curing line to Testing line Manpower and forward the Solar Modules for testing