AEP Substation Operations Flashcards
6 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 6 AEP Substation Operations flashcards as text
What does SCADA stand for in substation automation?
Answer: Supervisory Control and Data Acquisition
SCADA (Supervisory Control and Data Acquisition) systems allow operators to remotely monitor and control substation equipment from a control center.
What is the role of a capacitor bank in a distribution substation?
Answer: To improve power factor and provide voltage support
Capacitor banks supply reactive power to improve power factor and support voltage levels on the distribution system.
What is a substation 'switching order' used for?
Answer: To document and authorize a sequence of switching operations
A switching order is a written document that authorizes and sequences specific switching operations to safely isolate or energize substation equipment.
What is the purpose of an automatic recloser installed on a distribution feeder leaving a substation?
Answer: To automatically restore power after a temporary fault
Reclosers automatically interrupt and re-energize a feeder after a temporary fault, restoring service without manual intervention.
What is the significance of a substation's short circuit capacity (fault level)?
Answer: The maximum fault current the substation equipment must withstand
Short circuit capacity determines the maximum fault current that can flow, which equipment must safely interrupt or withstand without damage.
Which instrument transformer is used to measure voltage in a high-voltage substation?
Answer: Potential transformer (PT) or voltage transformer (VT)
Potential transformers (PTs) or voltage transformers (VTs) step down high voltages to safe, standardized levels (typically 120V) for metering and protection.