SOPD Emergency Response & System Restoration Procedures 4

Question 1

What does 'load shedding' accomplish during a generation deficiency emergency?

Accepted Answer

It reduces system demand to balance generation and arrest frequency decline

Answer

Load shedding reduces total system demand to match available generation, stabilizing frequency and preventing a complete system collapse.

Question 2

A 'sectionalizing' switch used during emergency restoration is operated to:

Accepted Answer

Isolate a faulted section and restore supply to unfaulted portions of the feeder

Answer

Sectionalizing switches allow operators to isolate the faulted segment of a circuit and then re-energize the healthy sections from alternate supply points.

Question 3

NERC EOP-006 addresses:

Accepted Answer

Restoration coordination between Transmission Operators and Balancing Authorities

Answer

EOP-006 defines the roles and coordination requirements between Transmission Operators and Balancing Authorities during system restoration activities.

Question 4

During high system stress, a Transmission Operator observes voltage collapse beginning in one area. The most effective short-term corrective action is:

Accepted Answer

Rapidly increase reactive support (generators, SVCs, capacitors) in the affected area and reduce reactive-consuming load

Answer

Voltage collapse is driven by reactive power deficit; immediate injection of reactive support arrests the collapse before it propagates.

Question 5

A 'generation trip' event causing sudden loss of 1,200 MW will cause system frequency to:

Accepted Answer

Drop immediately as the generation-load balance is upset

Answer

Loss of generation causes an immediate frequency drop as the remaining inertia decelerates trying to supply the unchanged load.

(SOPD) System Operator/Power Dispatching Practice Test

(SOPD) System Operator/Power Dispatching Practice Test

SOPD Emergency Response & System Restoration Procedures 4