SOPD Power Grid Operations & Management

Question 1

Which control action is primarily used by system operators to maintain system frequency in real time?

Accepted Answer

Automatic Generation Control (AGC)

Answer

Under‑frequency load shedding

Answer

Voltage compensation

Answer

Reserve scheduling

Question 2

The N‑1 reliability criterion requires that the grid must:

Accepted Answer

Withstand the outage of any one component without service interruption

Answer

Survive loss of any two generators

Answer

Maintain nominal voltage at all buses

Answer

Operate at 100 % load factor

Question 3

Reactive power is MOST important for:

Accepted Answer

Voltage control and system stability

Answer

Frequency regulation

Answer

Balancing real‑time energy

Answer

Black‑start capability

Question 4

In a SCADA system, the Remote Terminal Unit (RTU) function is to:

Accepted Answer

Provide field data acquisition and control

Answer

Forecast renewable output

Answer

Allocate transmission rights

Answer

Perform state estimation

Question 5

Which document sets the real‑time operating limits for a transmission line based on conductor temperature and weather?

Accepted Answer

Facility rating

Answer

Interchange schedule

Answer

Protection relay setting

Answer

Energy market bid

Question 6

Governor droop on a generator determines:

Accepted Answer

Speed‑frequency characteristic for load sharing

Answer

Voltage response to reactive demand

Answer

Ramp rate limits for startup

Answer

Start‑up sequence order

Question 7

Economic dispatch primarily aims to:

Accepted Answer

Minimize total production cost for the required load

Answer

Minimize transmission losses only

Answer

Allocate spinning reserve

Answer

Schedule preventative maintenance

Question 8

A black‑start unit is characterized by its ability to:

Accepted Answer

Start without off‑site electricity supply

Answer

Operate at zero power factor

Answer

Ramp from 0–100 % load in <1 min

Answer

Island customer microgrids

Question 9

During high load conditions, system operators may order capacitor banks switched in to:

Accepted Answer

Inject reactive power to support voltage

Answer

Lower system frequency

Answer

Increase line impedance

Answer

Provide black‑start capability