Vertiv Senior Service Engineer Interview Questions and Answers

Q1. How three level inverter topology work?
Ans. 
A three level inverter topology consists of three voltage levels to generate a sinusoidal output waveform.
• Three level inverters use multiple power switches to create three voltage levels: positive, zero, and negative.

• They are used in high power applications where a high quality output waveform is required.

• Examples include solar inverters, motor drives, and grid-tied inverters.
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Q2. Explain data centre electrical configuration with UPS.
Ans. 
Data centre electrical configuration with UPS involves backup power supply to ensure continuous operation.
• Data centre electrical configuration includes primary power source from utility grid.

• UPS (Uninterruptible Power Supply) provides backup power in case of utility power failure.

• UPS systems can be standalone or integrated with generators for extended backup.

• UPS systems are typically designed with redundancy for reliab...read more
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Q1. Power electronics working principle
Ans. 
Power electronics is the study of electronic circuits used to convert and control electric power.
• Power electronics deals with the conversion of electrical energy from one form to another.

• It involves the use of semiconductor devices such as diodes, transistors, and thyristors.

• Power electronics is used in a wide range of applications such as motor drives, renewable energy systems, and power supplies.

• The working principle...read more
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Q1. Why do you leave the current company
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