Grid Reliability & Infrastructure Flashcards
7 cards from real AEP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Grid Reliability & Infrastructure flashcards as text
What is AEP's primary strategy for addressing aging infrastructure in its transmission network?
Answer: Systematic asset management programs that prioritize replacement based on condition and risk
AEP uses condition-based and risk-informed asset management programs to proactively replace aging equipment before failures occur, improving reliability.
What does the 'load factor' of a transmission system indicate?
Answer: The ratio of average load to peak load over a given period
Load factor (average load ÷ peak load) measures how efficiently a system's capacity is utilized; a higher load factor indicates more consistent, efficient use.
During an emergency, AEP operators may call for 'manual load shedding.' What does this involve?
Answer: Deliberately disconnecting groups of customers to prevent a wider grid collapse
Manual load shedding intentionally disconnects blocks of customer load to balance supply and demand, preventing a catastrophic total blackout.
What cybersecurity framework does NERC CIP (Critical Infrastructure Protection) require AEP to apply to its bulk electric system assets?
Answer: Identification, protection, and incident response measures for critical cyber assets
NERC CIP standards require utilities like AEP to identify critical cyber assets, implement security controls, manage access, and respond to cyber incidents.
What is the significance of AEP's 765 kV transmission network compared to lower-voltage systems?
Answer: It can transmit much larger amounts of power over long distances with lower losses
AEP's 765 kV system (the highest operating voltage in the Western Hemisphere for a utility) enables bulk power transfer of thousands of megawatts with significantly reduced losses.
Which practice helps AEP prevent geomagnetically induced currents (GICs) from damaging transformers during solar storms?
Answer: Implementing GIC monitoring systems and operational procedures to protect transformers
AEP uses GIC monitoring equipment and operational protocols (like adjusting transformer loading) to mitigate damage from geomagnetic disturbances caused by solar activity.
What is the key reliability benefit of AEP's meshed transmission network topology compared to a radial design?
Answer: Multiple power flow paths allow the system to survive equipment failures without outages
A meshed network provides multiple paths for power to flow, so if one line or transformer fails, power can be rerouted through alternative paths, maintaining service.