NERC Flashcards
The reliability coordinator may initiate a conference call under which of the following conditions?
Anytime conditions warrant
Data required for the calculation of ACE is acquired on which of the following time intervals?
6 seconds
This is not a reason to notify other systems through predetermined communications paths.
Loss of 10 MW load
How often should reliability coordinators, via the ISN, exchange with each other electric security data that is necessary to allow the reliability coordinators to perform their operational security assessments and coordinate their reliable operations?
Every 10 minutes
N e r c event reporting requires a report for events or occurrences which results in a loss of generation in the amount greater than _______ for those entities operating in the Eastern or western interconnections.
2000 MW
You are a transmission operator and provide the following operating instructions to a switchman in the field. “I want you to open switch 2463A and visually verify that all gang switches are open and clear.” The switchman responds with, “I understand that you want me to open switch 2463A and visually verify that all gang switches are open and clear.” What would then be your appropriate response?
That is correct
Electric system security data has to be updated every ______.
10 minutes
The electric system security data is received over the ______.
ISN
This is not a reason to notify other systems in your region through permitted communication paths.
Market implications
Each balancing authority and generator operator shall comply with the reliability directives issued by the transmission operator, unless such actions would violate all of the following except:
Market requirements
If a transmission operator has an anticipated emergency condition, it shall inform ______.
It’s reliability coordinator and any other potentially affected transmission operators.
All generation, transmission, and load operating within an interconnection must be included within the metered boundaries of a /an _____?
Balancing authority area
Each SOL/IROL violation shall be reported to the regional council and NERC compliance subcommittee within ____?
72 hours
Generator 2 is currently putting out 100 MW, there is 0 MW coming from System Z. The flow on the lines is as follows: Line 1 has 50 MW from A to B, Line 2 has 25 MW from A to b, and Line 3 has 25 MW from A to b. If 100 MW were to flow in from System Z what would be the new MW flow on Line 3?
50 MW
You are operating in the transmission operator function and you identify in your EMS that a value from SCADA is indicating 0 MVA, but the SE value is 455 MVA. What action should you take?
Investigate the cause for the bad SCADA value.
If an IROL violation requires the adjustment of interchange transactions, which of the following actions should the reliability coordinator direct the transmission operators and balancing authorities to take until the transaction curtailments take place?
-raise the limits
-switch transmission facilities
If a system operator is required to control its transmission facilities on a precontingency basis, what action would be appropriate if a system study indicated a potential emergency violation?
Shift generation to eliminate the concern
What would result if there was a bad state estimator solution?
Contingency analysis program would produce incorrect results
According to the NERC glossary, it constrained facility is defined as a transmission facility that is approaching, is at, or beyond its:
SOL or IROL
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
What defines the acceptable operating boundaries for the transmission system?
SOL’s
Line A-B is overloaded with flow going from station A to Station B. The reliability coordinator has directed you to shed 20 MW of load to alleviate the overload What is the best option to implement the directive?
Shed 0 MW at Station A and 20 MW at Station B
Line 1, line 2 and generator 1 are generating the bus. Line 3, line 4 and line 5 are transmitting out of the bus. What is the impact if line 4 trips out of service?
The flow online three and line five would increase
The reliability coordinator may use local transmission loading relief procedures if the _______ experiencing the potential or actual SOL or IROL violation is a party to the procedures?
Transmission operator
