PJM Transmission Exam Study
Study online at https://quizlet.com/_8hlu4k
1. During System Restoration, what is the optimal Fre- 59.75 - 61 Hz
quency Range?
2. The 500 kV system has normal bus voltages between? 500 to 550 kV
3. When Connecting 2 islands, the operator must match? Voltage, Phase Angle and
Frequency
4. What are the Minimum Source Requirements for a 30 MW Gen/mile of en-
500kV line? (Gen/mile and load/mile) ergized 500 kV and 20
MW Load/mile of ener-
gized 500 kV
5. When will PJM issue a Minimum Generation Alert? When expected genera-
(how many MW under normal operating limits) tion levels fall within 2500
MW of normal operating
limits
6. When a thunderstorm is nearing the BES should Yes
auto-reclosing be turned on?
7. What does SCADA stand for? Supervisory Control & Data
Acquisition
8. What does IROL stand for? Interconnection Reliability
Operating Limit
9. What does eDART stand for? Dispatcher Application
and Reporting Tool
10. What is eDART used for? (Electronic Disp Reporting It is used for: Gener-
Tool) ation Outage Schedul-
ing, Instantaneous Re-
serve Checks, Genera-
, PJM Transmission Exam Study
Study online at https://quizlet.com/_8hlu4k
tor Reactive Capabilities
and to enter and submit
switching
11. What direction do VARS flow? From HIGH Voltage to
LOW Voltage
12. What direction do MW flow? From HIGH Phase Angle to
LOW Phase Angle
13. Which of the following factors are NOT used in fore- 4
casting load?
1) Weather Forecast
2) Historical Load Forecast
3) Historical Weather Data
4) Locational Marginal Pricing (LMP) Data
14. What one-way communication system is used to dis- All-Call
seminate info to local call centers?
15. The 3 categories of messages issued by PJM All-Call all 3
EXCEPT:
1) Operational
2) Informational
3) Conflicting Interchange Values
4) Emergency Procedures
16. When should, transmission outages should be sub- First day of Month Prior to
mitted to PJM to avoid cancellation and to be consid- the Outage
ered "on time?'
17.
, PJM Transmission Exam Study
Study online at https://quizlet.com/_8hlu4k
What report will be requested by PJM when a Max Supplementary Status Re-
Generation Alert is issued? port (SSR)
18. The loss of a large generation unit on the PJM system Frequency and PJM Area
can be detected by monitoring: Control Error (ACE)
19. The PJM system is operated such that the contingency Emergency Rating
flow is less than the:
20. When ordered a 5% voltage reduction should be taken The Distribution System
on:
21. TOs are required to report "Hot Line Work" on what 345 kV and Above
voltage levels?
22. Load dump rating of an EHV line is determined by? 115% of the facility's 4
hour Emergency Rating
23. During System Restoration, will closing additional tie Yes
lines increase the strength & stability of an intercon-
nected area?
24. Which of the following factors influence load forecast 1, 2, 4
(3)?
1) Weather
2) Temperature
3) Reactive Reserves
4) Day of the week
25. During system restoration, what is the voltage range 90% and 105% main-
the system should be kept between? tain voltage profile be-
tween for system restora-
tion
, PJM Transmission Exam Study
Study online at https://quizlet.com/_8hlu4k
26. PJM will coordinate and direct all restoration lines of 500kV and above
what voltage levels?
27. How much load would you dump to increase the fre- 6-10%
quency by 1 Hz (percentage range)?
28. Generation is disconnected after 5 seconds, when the Drops below 57.5Hz
frequency:
29. How much of the total Dynamic Reserve should be
used on Under Frequency relay load?
30. During System Restoration, capacitor banks should be 40%
kept off until how much of the load is restored?
31. Would PJM assume Frequency Control when the con- Yes
trol of an interconnected area is too burdensome for
any Local Control Center?
32. Operator receiving an All-Call message should state Name and Company
the following before playback of the message?
33. Dynamic Reserves consist of: Governor Reserve and
Load that has been re-
stored with under fre-
quency relays
34. What would be the appropriate response to receiving Advise substation person-
a DC ground Alarm? nel of the alarm during
normal hours
35. An islanded system has a load of 3000 MW. To increase 180 MW
frequency by 1 Hz, how much load should be shed?
Study online at https://quizlet.com/_8hlu4k
1. During System Restoration, what is the optimal Fre- 59.75 - 61 Hz
quency Range?
2. The 500 kV system has normal bus voltages between? 500 to 550 kV
3. When Connecting 2 islands, the operator must match? Voltage, Phase Angle and
Frequency
4. What are the Minimum Source Requirements for a 30 MW Gen/mile of en-
500kV line? (Gen/mile and load/mile) ergized 500 kV and 20
MW Load/mile of ener-
gized 500 kV
5. When will PJM issue a Minimum Generation Alert? When expected genera-
(how many MW under normal operating limits) tion levels fall within 2500
MW of normal operating
limits
6. When a thunderstorm is nearing the BES should Yes
auto-reclosing be turned on?
7. What does SCADA stand for? Supervisory Control & Data
Acquisition
8. What does IROL stand for? Interconnection Reliability
Operating Limit
9. What does eDART stand for? Dispatcher Application
and Reporting Tool
10. What is eDART used for? (Electronic Disp Reporting It is used for: Gener-
Tool) ation Outage Schedul-
ing, Instantaneous Re-
serve Checks, Genera-
, PJM Transmission Exam Study
Study online at https://quizlet.com/_8hlu4k
tor Reactive Capabilities
and to enter and submit
switching
11. What direction do VARS flow? From HIGH Voltage to
LOW Voltage
12. What direction do MW flow? From HIGH Phase Angle to
LOW Phase Angle
13. Which of the following factors are NOT used in fore- 4
casting load?
1) Weather Forecast
2) Historical Load Forecast
3) Historical Weather Data
4) Locational Marginal Pricing (LMP) Data
14. What one-way communication system is used to dis- All-Call
seminate info to local call centers?
15. The 3 categories of messages issued by PJM All-Call all 3
EXCEPT:
1) Operational
2) Informational
3) Conflicting Interchange Values
4) Emergency Procedures
16. When should, transmission outages should be sub- First day of Month Prior to
mitted to PJM to avoid cancellation and to be consid- the Outage
ered "on time?'
17.
, PJM Transmission Exam Study
Study online at https://quizlet.com/_8hlu4k
What report will be requested by PJM when a Max Supplementary Status Re-
Generation Alert is issued? port (SSR)
18. The loss of a large generation unit on the PJM system Frequency and PJM Area
can be detected by monitoring: Control Error (ACE)
19. The PJM system is operated such that the contingency Emergency Rating
flow is less than the:
20. When ordered a 5% voltage reduction should be taken The Distribution System
on:
21. TOs are required to report "Hot Line Work" on what 345 kV and Above
voltage levels?
22. Load dump rating of an EHV line is determined by? 115% of the facility's 4
hour Emergency Rating
23. During System Restoration, will closing additional tie Yes
lines increase the strength & stability of an intercon-
nected area?
24. Which of the following factors influence load forecast 1, 2, 4
(3)?
1) Weather
2) Temperature
3) Reactive Reserves
4) Day of the week
25. During system restoration, what is the voltage range 90% and 105% main-
the system should be kept between? tain voltage profile be-
tween for system restora-
tion
, PJM Transmission Exam Study
Study online at https://quizlet.com/_8hlu4k
26. PJM will coordinate and direct all restoration lines of 500kV and above
what voltage levels?
27. How much load would you dump to increase the fre- 6-10%
quency by 1 Hz (percentage range)?
28. Generation is disconnected after 5 seconds, when the Drops below 57.5Hz
frequency:
29. How much of the total Dynamic Reserve should be
used on Under Frequency relay load?
30. During System Restoration, capacitor banks should be 40%
kept off until how much of the load is restored?
31. Would PJM assume Frequency Control when the con- Yes
trol of an interconnected area is too burdensome for
any Local Control Center?
32. Operator receiving an All-Call message should state Name and Company
the following before playback of the message?
33. Dynamic Reserves consist of: Governor Reserve and
Load that has been re-
stored with under fre-
quency relays
34. What would be the appropriate response to receiving Advise substation person-
a DC ground Alarm? nel of the alarm during
normal hours
35. An islanded system has a load of 3000 MW. To increase 180 MW
frequency by 1 Hz, how much load should be shed?
