PJM TRANSMISSION COMPREHENSIVE EXAM QUESTIONS
AND ANSWERS SURE A+
✔✔According to NERC, Gen Operators must report Reactive Capability Changes to the
TOP within 30 min and include:
1) Status of auto voltage regulator
2) Expected duration of change
3) Transformer tap change position
4) eDART reporting
a) 1 & 2
b) 1 & 3
c) 1 & 4
d) 2 & 3 - ✔✔A
✔✔What would affect Transmission Cables but not overhead transmission lines?
1) Earthquakes
2) Oil pumps that have lost electrical power
3) VAR charging on lines
4) Ferranti rise - ✔✔2
✔✔What transformer rating would be the highest?
1) OA
2) FA
3) OA/FA
4) OA/FA/FA - ✔✔4
✔✔What would cause PJM to require that a Generator Reactive Capability test should
be re-scheduled?
1) If it occurs during peak hours
2) If it occurs during non-peak hours
3) If there are actual violations that cannot be mitigated
4) If there are any other outages planned - ✔✔3
✔✔True or False: TOs can place a caps back in service or request additional MVARs
from a generator that is running slightly below its voltage schedule without PJM
permission - ✔✔True
✔✔Members should avoid scheduling outages during Peak Periods (Jan 1st to Feb
15th and June 15th to August 31st) if the outage is expected to which of the following
(pick 3):
, 1) Have a duration of more than 30 days with 2 days restoration 2) Result in stability
issues
3) Results in LMP values to decrease
4) Bottle generation - ✔✔1, 2, 4
✔✔What is a device that can impact voltage changing by the flow of real power on a
line and adjacent lines?
1) Capacitor
2) Reactor
3) Phase Angle Regulator
4) Apparent Power - ✔✔3
✔✔Companies can request info on outages of facilities that they do not own but affect
their system. Which mechanism would you use to request this information?
1) eDART
2) eTERM
3) OASIS
4) PJM All-Call - ✔✔1
✔✔True or False: A voltage regulator changes the excitation of a unit - ✔✔True
✔✔How is a TO informed that a change has been made to the Reactive Capability
Curve of a generator in their footprint?
1) eDART
2) eTERM
3) OASIS
4) PJM All-Call - ✔✔1
✔✔True or False: GMD's create an alarm because of the unbalanced positive relay
operation - ✔✔False: unbalanced neutral relay operation
✔✔Whats the usual power supply for BES transformer oil pumps and fans?
1) Battery banks
2) Solar power
3) Station service transformers
4) Capacitor banks - ✔✔3
✔✔True or False: Reactive resources 230kV and below can be switched without PJM
notification - ✔✔False: 138 kV and below
AND ANSWERS SURE A+
✔✔According to NERC, Gen Operators must report Reactive Capability Changes to the
TOP within 30 min and include:
1) Status of auto voltage regulator
2) Expected duration of change
3) Transformer tap change position
4) eDART reporting
a) 1 & 2
b) 1 & 3
c) 1 & 4
d) 2 & 3 - ✔✔A
✔✔What would affect Transmission Cables but not overhead transmission lines?
1) Earthquakes
2) Oil pumps that have lost electrical power
3) VAR charging on lines
4) Ferranti rise - ✔✔2
✔✔What transformer rating would be the highest?
1) OA
2) FA
3) OA/FA
4) OA/FA/FA - ✔✔4
✔✔What would cause PJM to require that a Generator Reactive Capability test should
be re-scheduled?
1) If it occurs during peak hours
2) If it occurs during non-peak hours
3) If there are actual violations that cannot be mitigated
4) If there are any other outages planned - ✔✔3
✔✔True or False: TOs can place a caps back in service or request additional MVARs
from a generator that is running slightly below its voltage schedule without PJM
permission - ✔✔True
✔✔Members should avoid scheduling outages during Peak Periods (Jan 1st to Feb
15th and June 15th to August 31st) if the outage is expected to which of the following
(pick 3):
, 1) Have a duration of more than 30 days with 2 days restoration 2) Result in stability
issues
3) Results in LMP values to decrease
4) Bottle generation - ✔✔1, 2, 4
✔✔What is a device that can impact voltage changing by the flow of real power on a
line and adjacent lines?
1) Capacitor
2) Reactor
3) Phase Angle Regulator
4) Apparent Power - ✔✔3
✔✔Companies can request info on outages of facilities that they do not own but affect
their system. Which mechanism would you use to request this information?
1) eDART
2) eTERM
3) OASIS
4) PJM All-Call - ✔✔1
✔✔True or False: A voltage regulator changes the excitation of a unit - ✔✔True
✔✔How is a TO informed that a change has been made to the Reactive Capability
Curve of a generator in their footprint?
1) eDART
2) eTERM
3) OASIS
4) PJM All-Call - ✔✔1
✔✔True or False: GMD's create an alarm because of the unbalanced positive relay
operation - ✔✔False: unbalanced neutral relay operation
✔✔Whats the usual power supply for BES transformer oil pumps and fans?
1) Battery banks
2) Solar power
3) Station service transformers
4) Capacitor banks - ✔✔3
✔✔True or False: Reactive resources 230kV and below can be switched without PJM
notification - ✔✔False: 138 kV and below
