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NERC PREP > Interchange Coordination and scheduling - B > Flashcards

Interchange Coordination and scheduling - B Flashcards

1
Q

Unless agreed to otherwise by the sending, receiving, and Intermediary Balancing Authorities, when shall an interchange transaction begin and end?

A. When the transaction is approved.
B. At midnight the following business day.
C. Five minutes before the top of the hour.
D. Equally across the start and end times.

A

D. Equally across the start and end times

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2
Q

Interchange transaction tags may be modified for market-related issues at what time?

A. Only when the Market Operator agrees
B. Only before implementation
C. While the tag is in progress or scheduled to be started
D. Tags cannot be modified for market-related issues

A

D. Tags cannot be modified for market-related issues

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3
Q

If no other entity creates the tag for an interchange Transaction, which entity must create the tag?

A. The PSE serving the load
B. The The Receiving Balancing Authority
C. The PSE serving the generation
D. The sending Balancing Authority

A

A. the PSE serving the load

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4
Q

Information about interchange transaction may not be given to which of the following?

A. The source and sink Balancing Authorities
B. Reliability Authority in the area
C. Interested PSEs
D. Balancing Authorities that are part of the contract

A

C. Interested PSEs

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5
Q

The Total Capacity of the facilities of a transmission path is 1500 MW. The Total Transfer capability of the same path is 1000 MW from west to east. An unscheduled flow of 500 MW flows from east to west. What is the maximum scheduled interchange capability from west to east across the path?

A. 1000 MW
B. 500 MW
C. 1500 MW
D. 0 MW

A

A. 1000 MW

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6
Q

For an Interchange Schedule Agreement, the sending Balancing Authority and Receiving Balancing Authority shall agree with each other on all of the following EXCEPT…

A. Interchange Schedule start and end time
B. Ramp start time and rate
C. Market implications
D. Energy profile

A

C. Market implications

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7
Q

True or False: Balancing Authorities which implement interchange schedules that cross an interconnection boundary must use the same start time and the same ramp durations.

A. True
B. False

A

A. True

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8
Q

For a loss of generation, which entity is required to initiate a termination notification of implemented interchange transaction?

A. Purchasing-Selling Entity
B. Receiving Balancing Authority
C. Reliability Coordinator
D. Transmission Provider

A

A. Purchasing-Selling Entity

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9
Q

True or False: A dynamic schedule is tagged for a certain hour for 40 MW. The flow amount during the hour rises to 45. A revised tag is required because the tagged amount varies too much from he actual flow.

A. False
B. True

A

A. False

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10
Q

In the Eastern Interconnection a Balancing Authority has an inadvertent accumulation of 240 MWh over generation that should be used to schedule payback with a neighboring Balancing Authority. If 120 MWh is on peak, which schedule will work?

A. 10 MW delivered hour ending 1300 Saturday through hour ending 1200 Sunday (CST)

B. 24 MW delivered hour ending 0100 through hour ending 1000 Friday (CST)

C. 20 MW delivered hour ending 0100 through hour ending 1200 Monday (CST)

D. 10 MW delivered all day Wednesday

A

C. 20 MW delivered hour ending 0100 through hour ending 1200 Monday (CST)

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11
Q

When submitting a tag for a proposed Interchange Transaction, the Tag must be submitted at least ____ before the Transaction start time.

A. 1 hour
B. 20 minutes
C. 10 minutes
D. 24 hours

A

B. 20 minutes

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12
Q

What measures power flow data between Balancing Authorities?

A. Tie-line metering
B. Interchange
C. Transactions
D. OASIS

A

A. Tie-line metering

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13
Q

The purpose of the net tie deviation from schedule trend recorder is to

A. Measure calibration errors of tie line metering.
B. Measure response to frequency excursions.
C. Monitor total interchange.
D. Provide back up for the ACE recorder

A

B. Measure response to frequency excursions

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14
Q

If your Balancing Authority “A” has an on-peak inadvertent accumulation of 1275 MWh out of its area and wishes to reduce this through bilateral payback with one of its adjacent systems, which system can it establish this payback with?

A. Balancing Area D with an on-peak accumulation of -1500 MWh

B. Balancing Area D with an on-peak accumulation of -1000 MWh

C. Balancing Area B with an off-peak accumulation of -2000 MWh

D. Balancing Area C with an on-peak accumulation of 375 MWh in to its area

A

A. Balancing Area D with an on-peak accumulation of -1500 MWh

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15
Q

The Balancing Authority shall verify and assess all of the following for interchange transactions EXCEPT

A. Scheduling path
B. Energy profile
C. Loss Accounting
D. Transaction start time

A

C. Loss Accounting

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16
Q

When utilizing a dynamic schedule, a time varying component is entered into what portion of a Balancing Authorities tie-line bias ACE equation?

A. Actual interchange component
B. Actual Frequency Component
C. Scheduled frequency component
D. Scheduled interchange component

A

D. Scheduled interchange component

17
Q

What is the most appropriate definition of electrical energy

A. The generation or use of electric power by a device over a period of time, expressed in kilowatthours (kWh, megawatthours (MWh), or gigawatthours (GWh)

B. the voltage applied to a device in kilovolts (kV)

C. The generation or use of electric power by a device over a period of time, expressed in kilowatts (kW)

D. The generation or use of electric power by a device over a period of time, expressed in megawatts (kw)

A

A. The generation or use of electric power by a device over a period of time, expressed in kilowatthours (kWh), megawatthours (MWh), or gigawatthours (GWh)

18
Q

Frequency information should be gathered from ____ location(s) and monitored in the Control Center.

A. Only One
B. Generation plant
C. Selected
D. Various

A

C. Selected

19
Q

Inadvertent interchange is equal to…

A. Net scheduled interchange - net actual interchange
B. On peak interchange - off peak interchange
C. load forecasting error
D. Net actual interchange - net scheduled interchange

A

D. Net actual interchange - net scheduled interchange

20
Q

NERC required each Balancing Authority to verify and agree with its neighboring Balancing Authorities at least once a day for ____.

A. Voltage schedules in the bordering areas

B. Total scheduled and actual interchange

C. interchange schedules impacted by special protection schemes

D. Unused transmission rights

A

B. Total scheduled and actual interchange

21
Q

What is the calculation for inadvertent interchange?

A. Net Actual Interchange x Net Scheduled Interchange
B. Net Actual Interchange + Net Scheduled Interchange
C. Net Actual Interchange - Net Scheduled Interchange
D. Net scheduled Interchange - Net Actual Interchange

A

C. Net Actual Interchange - Net Scheduled Interchage

22
Q

Interchange Transactions Established to replace unexpected generation losses are exempt from tagging for…

A. 60 minutes
B. 2 hours
C. 24 Hours
D. 30 Minutes

A

A. 60 Minutes

23
Q

Ten Balancing Authorities are parties to a regional transmission agreement. For purposes of Interchange Schedules, all ten Balancing Authorities are:

A. Receiving Balancing Authorities
B. Intermediary Balancing Authorities
C. Adjacent Balancing Authorities
D. Sending Balancing Authorities

A

C. Adjacent Balancing Authoriteis

24
Q

Each Balancing Authority shall develop prioritization procedures for the curtailment of transmission service and energy schedules. The procedures shall provide for:

A. Annual reporting to the DOE and the appropriate NERC region

B. Curtailment of energy and transmission schedules to alleviate a violation

C. Notification of customers of impeding load reductions

D. Taking into account the financial aspects when cutting transmission and energy schedules

A

B. Curtailment of energy and transmission schedules to alleviate a violation

25
Q

Unless otherwise agreed, an interchange transaction shall be submitted to all Balancing Authorities on the scheduling path no later than

A. 60 minutes before the transaction begins
B. 20 minutes before the transaction begins
C. 40 minutes before the transaction begins
D. 10 minutes before the transaction begins

A

B. 20 minutes before the transaction begins.

26
Q

Balancing Authorities that are parties to an interchange schedule shall be known to each other: (Two answers)

A. Before confirming a schedule
B. Before implementing a schedule
C. After completing a schedule

A

A. Before confirming a schedule

&

B. Before implementing a schedule

27
Q

Each Balancing Authority shall perform control error checks using tie-line MWh meters to determine the accuracy of its control equipment

A. Daily
B. Weekly
C. Periodic
D. Hourly

A

D. Hourly

28
Q

NERC defines the term interchange as…

A. Demand that can be interrupted by the direct action of the supplying system;s system operator
B. A plan or arrangement for a Transaction
C. Energy transfers across Balancing Authority boundaries
D. the Amount of electric power delivered or required at specific points in the system

A

C. Energy transfers across Balancing Authority boundaries

29
Q

Only certain entities can make a modification to a transaction tag for a reliability related issues. Of the ones listed, who is NOT allowed to modify the tag?

A. Generation Balancing Area
B. Transmission Providers
C. Load Balancing Area
D. Load Serving Entity

A

D. Load Serving Entity

30
Q

If an Interchange Transaction curtailment is initiated by a Reliability Coordinator, that Reliability Coordinator must notify the appropriate

A. Receiving Balancing Authority
B. Sink Balancing Authority
C. Sending Balancing Authority
D. Source Balancing Authority

A

B. Sink Balancing Authority

NERC PREP (24 decks)

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