NERC final exam SOS.pdf file:///C:/Users/HP/Desktop/New%20folder/NERC%20final%20exa
NERC FINAL EXAM SOS QUESTIONS & VERIFIED
ANSWERS
1. Of the following, which control system would be affected by a difference inNet Actual
Interchange and Net Scheduled Interchange?
a. Automatic Voltage Regulator
b. Reactive Control
c. Automatic Generation Control
d. Turbine Governor Control
Answer : c. Automatic Generation Control
Feedback: BAL-005, Automatic Generation Control (AGC) Equipment automaticallyadjusts
generation in a Balancing Authority Area from a central location to maintainthe Balancing
Authority's interchange schedule plus Frequency Bias. AGC is a process designed and used to
adjust a Balancing Authority Areas' Demand and resources to help maintain the Reporting ACE
in that of a Balancing Authority Areawithin the bounds required by applicable NERC Reliability
1 of 59 9/13/2024, 5:06
,NERC final exam SOS.pdf file:///C:/Users/HP/Desktop/New%20folder/NERC%20final%20exa
Standards. Governors arrest frequency deviations, but Automatic Generation Control (AGC)
maintains generation to a schedule. It does this by pulsing the generator governors to either
increase or decrease megawatt as needed.
2. How is the Frequency Response Obligation (FRO) of a Frequency ResponseSharing
Group determined?
a. By averaging the members' FRO's.
b. By adding the individual FRO's of each member.
c. By taking the median Frequency Response Measure of the previous year.
d. By adding the member's Frequency Response Measures of the previousyear.
Answer : b. By adding the individual FRO's of each member.
Feedback:
NERC allows Balancing Authorities to form Frequency Response Sharing Groups (FRSGs) with
other Balancing Authorities to jointly meet their FROs. These FRSGsdetermine their joint FRO
by adding up the member's individual FROs.
2 of 59 9/13/2024, 5:06
,NERC final exam SOS.pdf file:///C:/Users/HP/Desktop/New%20folder/NERC%20final%20exa
3. NERC Standard BAL-001 states that a Balancing Authority's clock-minuteaverage of
Reporting ACE reading must not exceed its Balancing Authority ACE Limit (BAAL) for
more than .
a. 30 consecutive clock-minutes
b. 30 clock minutes per hour
c. 15 consecutive clock-minutes
d. 90% of 10-minute periods in a month
Answer : a. 30 consecutive clock-minutes
3 of 59 9/13/2024, 5:06
,NERC final exam SOS.pdf file:///C:/Users/HP/Desktop/New%20folder/NERC%20final%20exa
Feedback: BAL-001, Real Power Balancing Control Performance
4. If a Balancing Authority needs to offset the scheduled frequency by 0.02 Hz, due to an
Interconnection wide time error correction, what adjustment canthe Balancing Authority
make to participate Interconnection wide time error correction if unable to change
scheduled frequency?
a. Change the AGC mode
b. Changing the B (frequency bias) setting of the ACE equation
c. Changing the governor speed droop from 5% to 4%
d. Offset its Net Interchange Schedule(MW) by an amount equal to the com- puted bias
contribution during a 0.02 Hz Frequency Deviation
Answer : d. Offset its NetInterchange Schedule(MW) by an amount equal to the computed bias
contributionduring a 0.02 Hz Frequency Deviation
Feedback: Time Error Correction is when the Interconnection schedules frequency, normally
60.00 Hz to 59.98 Hz or 60.02 Hz in order to adjust clocks that may be eitherfast or slow due to the
4 of 59 9/13/2024, 5:06
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller BESTGOODIES. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.99. You're not tied to anything after your purchase.
