NERC Transmission Practice Test
Questions and Answers 100% Pass
Which type of relay operates on the premise of comparing the flow in and out of the area of
protection? ✔✔Differential relay
Underfrequency load sheddin
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NERC Transmission Practice Test
Questions and Answers 100% Pass
Which type of relay operates on the premise of comparing the flow in and out of the area of
protection? ✔✔Differential relay
Underfrequency load shedding is set-up so that which of the following does NOT occur?
✔✔Uncontrolled separation
Who is responsible to make sure that the operation of voltage control equipment is coordinated
with other impacted entities? ✔✔Transmission Operator
The coordination of voltage schedules by system operators would be utilized to reduce all of the
following EXCEPT ✔✔Reactive inadvertent
What should a system operator expect to see if the generator increases its excitation? ✔✔An
increase in MVAR output
A transmission line between Bus A and Bus B has MW flow from Bus B to Bus A. After the
tripping of a parallel line, the line flow from Bus B to Bus A exceeds the lines thermal rating.
Which of the following actions would assist the operator in correcting the problem? ✔✔Increase
generation at Bus A
What is a major concern for a System Operator during emergency conditions? ✔✔System
remains connected to the Interconnection
If your system has lost a large amount of customer load due to a system disturbance, but has
remained connected to all of your neighbors, what is the best solution to consider?
✔✔Coordinate with the neighbors
You report for work on a peak summer day with expected high temperatures and load. What can
you do to maintain an adequate system voltage profile? ✔✔Get under the voltage by placing
capacitors in service while maintaining operating limits
If a Balancing Authority is unable to calculate ACE for more than _________ minutes it shall
notify its Reliability Coordinator. ✔✔30
Your system configuration presents you with a situation of having two parallel lines between two
stations. The lines have different ratings. Line A has a rating of 250 MVA, while line B has a
rating of 200 MVA. Based on the line ratings, what is the first contingency transfer capability
between the two stations? ✔✔200 MVA
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