Siemens Energy Graduate Trainee Interview Questions and Answers

Q1. What is impidance,DGR FUNDAMENTAL AND BASICS
Ans. 
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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Average level questions based on your major

Q1. Purpose of transformer
Ans. 
Transformers are used to change the voltage of electricity for transmission and distribution purposes.
• Transformers step up or step down voltage levels as needed

• They help in efficient transmission of electricity over long distances

• Examples include power transformers in substations and distribution transformers on utility poles
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Q1. Self Introduction
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Q1. Salary discussion
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Q1. Vector group test, stability of transformer,all test Transformers
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Q2. How many types of transformer testing
Ans. 
There are several types of transformer testing including routine, type, special, and field testing.
• Routine testing is done during the manufacturing process to ensure the transformer meets standard specifications.

• Type testing is done on a sample transformer to ensure it meets specific requirements before being put into service.

• Special testing is done on transformers that have been in service for a long time or have unde...read more
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Q1. How many types of SCB
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Q2. What is Voc and what is vector group
Ans. 
Voc is the open circuit voltage of a transformer. Vector group is the arrangement of transformer windings.
• Voc is the voltage measured across the terminals of a transformer when there is no load connected to it.

• Vector group is a code that describes the arrangement of the windings in a three-phase transformer.

• Vector group determines the phase displacement between the primary and secondary windings.

• Vector group is importa...read more
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