Preview Questions Power Systems Engineer | Role Specific Skill

Question 1: In the context of transformer protection, what does reverse power protection prevent?

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It stops short-circuit currents from propagating in the transformer system

It prevents the transformer from operating in reverse direction due to line faults

It protects against sudden voltage surges during switching operations

It detects insulation failure in the transformer winding

Question 2: Why are neutral grounding resistors used in electrical systems?

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Stabilize system voltage

Reduce fault current magnitude

Enhance relay operation

Improve fault detection

Question 3: In power systems analysis, which of the following best describes a "contingency analysis"?

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An analysis to predict the future load demand

An analysis to determine the ideal location for new generators

An analysis to optimize network topology

An analysis of system reliability under component failures

Question 4: How does reactive power compensation affect voltage stability in a power system?

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It helps in maintaining voltage levels within safe operating ranges

It can lead to excessive voltage rise across transmission lines

It reduces system losses at high voltage levels

It prevents generator overloading during peak load periods

Question 5: Which standard governs electrical design for low-voltage systems?

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IEC 60947

NFPA 70

IEC 60364

IEEE 1584

Question 6: Which IEC standard is typically used for low-voltage switchgear and control gear design?

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IEC 60076

IEC 62271

IEC 60947

IEC 61439