Preview Questions Power Systems Engineer | Role Specific Skill

Question 1: What is the impact of load shedding on the power system during an emergency condition?

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It increases system fault frequency

It increases system generation capacity

It improves voltage profile across the system

It prevents system overload and maintains stability

Question 2: Why are step-up transformers required at power generation stations?

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Ensure voltage stability

Improve power factor

Increase transmission efficiency

Reduce line losses

Question 3: What does the diagonal element of the admittance matrix (Y-bus) represent?

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Self-admittance

Mutual admittance

Impedance

Shunt admittance

Question 4: In load flow analysis, what does the Q-V curve represent?

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The relationship between reactive power and voltage

The reactive power generation limits at each bus

The relationship between active power and reactive power

The voltage stability margin at a specific bus

Question 5: How does impedance-based protection operate in a transmission line protection system?

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It detects faults by measuring the change in current across the line

It measures the impedance of the line and compares it with pre-set values

It uses temperature readings to identify fault conditions

It uses voltage magnitude to determine fault location

Question 6: What does a slack bus in load flow analysis represent?

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Voltage-controlled bus

Load bus

A bus with zero power demand

A reference bus that balances system power