When using a dynamic schedule and the energy profile in an hour is >250 MW and the actual hourly integration deviates from the hourly energy profile by
... [Show More] ____ the tag must be modified.
A. 100 MW
B. 10%
C. 50 MW
D. 25%
B. 10%
Dry steam plants, flash steam plants, and binary cycle power plants are the three main types of what kind of generating plant?
A. Nuclear generators
B. Combustion turbine generators
C. Geothermal generators
D. Hydroelectric generators
C. Geothermal generators
Which type of solar technology converts electromagnetic energy in sunlight directly into direct current?
A. Concentrating solar thermal
B. Solar DC inverter
C. Photovoltaic
D. Solar batteries
C. Photovoltaic
If a reliability coordinator identifies that there is a potential transmission related problem in the area, who should they notify?
A. Marketers in the area
B. Other reliability coordinators in the interconnection
C. All purchasing selling entities
D. Generation operators in the area of the potential problem
B. Other reliability coordinators in the interconnection
Restoration services on critical telecommunications channels should be available _____.
A. 24 hours per day
B. Within 12 hours of a telecommunication channel failure
C. By the end of the next business day
D. Within 72 hours of the contingency occurring
A. 24 hours per day
According to NERC, A balancing authority may elect to fulfill its contingency reserve obligations by participating as a member of a _____
A. ISO
B. Reserve sharing group
C. RTO
D. Regional reliability organization
B. Reserve sharing group
If you were to experience the northern lights what would be your concern with the operation of the power system?
A. System harmonics causing oscillations
B. A reduction of MVAR consumption
C. Generator output reduction
D. Transformer overheating
D. Transformer overheating
Your BA has a net scheduled interchange of 650 MW and your actual interchange is 800 MW. The frequency bias setting for your BA is 65 MW/0.1 Hz. There is a disturbance on the system and the actual frequency is 60.02 Hz. What is your ACE?
A. -163 MW
B. -137 MW
C. 137 MW
D. 163 MW
D. 163 MW
Which of the following complies with the control performance 1 standard?
A. CPS = 95%
B. CPS = 125%
C. CPS = 90%
D. CPS = 80%
B. CPS = 125%
Generators have the ability to be used as voltage control devices. If a generator raises its VAR output the system operator should expect the system voltage to
A. Decrease
B. Increase
C. Not change
D. Collapse
B. Increase
if a BA has 500 MW of spinning reserves and of that 300 are regulating reserves, by definition, NERC requires the regulating reserves must be ____?
A. Online and AGC responsive
B. Able to ramp to full load within 10 minutes
C. Able to be online within 10 minutes
D. Able to be online within 5 minutes
A. Online and AGC responsive
There is a shunt capacitor on your system that has a rating of 50 MVAR @ 138 KV. The voltage at the time of switching the capacitor in service is 124 KV. What would be the expected output of the capacitor?
A. 45 MVAR
B. 43.5 MVAR
C. 50 MVAR
D. 40.5 MVAR
D. 40.5 MVAR
Which mode of AGC operation is the one that NERC states will be used unless such operation is adverse to the system or interconnection Reliability?
A. Constant interchange
B. Tie-line Bias
C. Constant frequency
D. Load-frequency bias
B. Tie-line Bias
You have a 600 MW unit that is currently loaded at 300 MW and frequency drops .2 Hz. What will the new output of the generator be as a result of the drop in frequency due to droop characteristic?
A. 300 MW
B. 340 MW
C. 260 MW
D. 380 MW
B. 340 MW
If a BA is unable to calculate its ACE for more than ____ it shall notify its RC.
A. 15 minutes
B. 60 minutes
C. 30 minutes
D. 20 minutes
C. 30 minutes
The system frequency is currently 60.03 Hz. The Synchronized generating capacity is 3200 MW. The system load is currently 2200 MW. What is the maximum amount of load block that should be restored?
A. 160 MW
B. 220 MW
C. 110 MW
D. 320 MW
A. 160 MW
A balancing authority has a bias setting of -150 MW. The frequency falls .05 Hz due to an external disturbance. How many MW would you expect this balancing authority area to provide to the disturbance?
A. +150 MW
B. +75 MW
C. -150 MW
D. -75 MW
B. +75 MW
When a RC must curtail or hold an interchange transaction to respect transmission service reservation priorities or to mitigate potential or actual SOL violation, the RC shall inform the _____ listed on the interchange transaction tag of the greatest reliable level at which the affected interchange transaction may flow.
A. Transmission service provider
B. Transmission operator
C. Source balancing authority
D. Sink balancing authority
D. Sink balancing authority
Each generator operator shall provide generator outage information daily for scheduled generator outages planned for the next day. Why is this important?
A. So the RC & TOP can do their studies
B. So marketing knows how much gas to buy
C. So the BA knows how much power to buy
D. So the plant can determine staffing requirements
A. So the RC & TOP can do their studies
You are a TOP and you have changed relay settings for your UVLS scheme in the northern part of your system. Your neighbor just to the north of you has a major generating facility rated @ 1000 MW and they supply most of the MVAR for the area. They also monitor the MVAR flows on most of the lines in the area due to an NRC requirement regarding MVAR for a nuclear plant. Of the parties listed below, who does not need to be notified of the changes made to the relay settings
A. Transmission service providers
B. Balancing authorities
C. Transmission operators
D. Generation operators
A. Transmission service providers
Areas of North America with igneous rock formations would be subject to which of the following due to the igneous rock formations?
A. Earthquakes
B. High customer load
C. Impacts of GMD activity
D. Earthquake aftershocks
C. Impacts of GMD activity
If you use a dynamic schedule that is less than or equal to 250 MW, how much does the average energy profile have to vary by in order to have to submit a new or modified tag?
A. 25 MW
B. 25%
C. 10%
D. 10 MW
A. 25 MW
The data scan rate for the ACE calculation has to occur at least every ____
A. Four seconds
B. 10 seconds
C. 15 seconds
D. Six seconds
D. Six seconds
The MSSC for your BA area is 850 MW. A defined disturbance for DCS reporting would be equal to how many MW's?
A. 680
B. 725
C. 600
D. 805
A. 680
According to NERC, which of the following shall shed customer load rather than risk an uncontrolled failure of components or cascading outages of the interconnection after all other remedial steps have been taken?
A. Transmission operator or balancing authority
B. Transmission operator or load serving entity
C. Transmission owner or balancing authority
D. Balancing authority or load serving entity
A. Transmission operator or balancing authority
The transmission owner and distribution provider that owns a UVLS system shall have equipment maintenance and testing programs in place. This program shall include which of the following?
1. Relays
2 instrument transformers
3 grounds
4 batteries
A. 2,3,&4
B. 1,3,&4
C. 1,2,&3
D. 1,2,&4
D. 1,2,&4
Transmission operator A has a step up transformer that has a rating of 1000 MVA at a generating facility. The unit is operating at full load and it is a peak day. Transmission operator A gets an alarm from a step up transformer and sees that it is loaded to 105% of its rated capacity. Transmission operator A has how long to return the transformer to the rated capacity?
A. 30 minutes
B. 20 minutes
C. 60 minutes
D. 15 minutes
A. 30 minutes
Who is responsible to know the status of all transmission reactive power resources, including the status of voltage regulators and power system stabilizers?
A. Transmission owner
B. Transmission operator
C. Transmission service provider
D. Reliability authority
B. Transmission operator
Between the times of 0930 and 0940 the system is operating normally. The average for the ACE is 33 MW. The BA L10 is 29.5 MW. Which of the following NERC performance standards was in violation?
A. BAAL
B. DCS
C. CPS1
D. CPS2
D. CPS2
What is the IEEE number for a differential relay?
A. 25
B. 50
C. 21
D. 87
D. 87
Who is responsible to initiate the confirmation process for interchange schedules?
A Balancing Authority
B. Generation providing entity
C. Transmission service provider
D. Purchasing selling entity
A. Balancing authority
A 10% reduction in voltage results in the effective value of a capacitor being
A. Reduced by more than 10%
B. Increased by 10%
C. Reduced 10%
D. Unchanged
A. Reduced by more than 10%
Generator #2is putting out 100 MW to station A. There is 0 MW coming from system Z to station A. The MW flow on the lines is as follows: line one 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 2
A. 50
B. 100
C. 25
D. 150
A. 50
If the reliability coordinator identifies an IROL for a future operating day due to scheduled outages, they are required to do which of the following?
A. Develop a mitigation plan
B. Declare an EEA3 for the hours of concern
C. Cancel all outages for the operating day
D. Review its restoration plan
A. Develop a mitigation plan
Who can declare an energy emergency?
A. The deficient balancing authorities reliability coordinator
B. The deficient balancing authorities transmission operator
C. The deficient balancing authority
D. The deficient balancing authorities AGC operator
A. The deficient balancing authorities reliability coordinator
A transmission line between Bus A and Bus B has MW flow from bus B to Bus A. The tripping of a parallel line has caused the line from bus A to bus B to exceed its thermal rating. which of the following actions would assist the operator in correcting the problem.
A. Shed load at bus B
B. Decrease generation at bus A
C. Shed load at bus A
D. Increase generation at bus B
C. Shed load at bus A
If a dynamic transfer value is being used for a pseudo-tie, what term is used when referring to the balancing authority where the generator is physically located?
A. Sending BA
B. Receiving BA
C. Attaining BA
D. Native BA
D. Native BA
Each transmission operator and balancing authority shall verify the restoration procedure by _____
A. Actual testing or simulation
B. Planning and simulation
C. Planning and testing
D. Dispatcher input or testing
A. Actual testing or simulation
You are a balancing authority and get a call from your purchase selling entity that an interchange transaction is to start at the top of the hour and is sinking on your system. There is no tag in place for this transaction but they are adamant that it is supposed to start in five minutes. What do you do?
A. Call the reliability coordinator
B. Notify them you have no tag therefore, no schedule will be entered into the EMS
C. Enter the said transaction into your EMS/AGC system
D. Notify your shift Manager
B. Notify them you have no tag therefore, no schedule will be entered into the EMS
Your system has experienced a total shut down. You have worked your system restoration plan and with the help of the RC you now seem to be ready to tie to the interconnection. What are the three important power system parameters that must be within acceptable limits before re-synchronizing?
A. Phase angle, frequency, and voltage
B. Phase angle, voltage, and inductive reactance
C. Phase angle, frequency, and inductive reactance
D. Frequency, voltage, and inductive reactance
A. Phase angle, frequency, and voltage
Which of the following types of wind generators have the ability to adjust the pitch of the rotor blades?
A. Active stall-controlled wind turbines
B. Pitch controlled wind turbines
C. Passive stall-controlled wind turbines
D. Blade adjustable wind turbines
B. Pitch controlled wind turbines
You are a BA and your MSSC is the loss of a 750 MW unit within your reserve sharing group. You have a loss of supply that is a reportable incident and you activate your reserve sharing. You have utilized all of your reserves for the contingency. How long do you have to restore your reserves?
A. 90 minutes
B. 60 minutes
C. 15 minutes
D. 30 minutes
A. 90 minutes
You are a BA and your frequency bias setting is 450 MW. The actual frequency is 59.98 Hz. What is your contribution to the interconnection for frequency?
A. 450 MW
B. 900 MW
C. 90 MW
D. 4500 MW
C. 90 MW
Which of the following statements is true about the interchange process?
A. Balancing authorities are responsible for verifying valid transmission service
B. Transmission service providers are responsible for implementing interchange
C. Transmission service providers are responsible for adjusting the DC tie-line
D. Balancing authorities are responsible for verifying ramp rate
D. Balancing authorities are responsible for verifying ramp rate
If a capacitor bank is removed from service, what immediate effect will there be on the voltage?
A. Increase
B. Drop and then return to previous level
C. Stay the same
D. Decrease
D. Decrease
BA 'A' has an estimated peak load for the next year of 13,250 MW. What is the minimum frequency bias setting it is allowed to carry according to the NERC?
A. 150 MW
B. 133 MW
C. 100 MW
D. 120 MW
B. 133 MW
If a transmission operator's state estimator fails to produce a valid solution, which of the following would you expect to be impacted?
A. PSSE results would be more accurate
B. Contingency analysis results could be flawed
C. ACE calculation would be incorrect
D. Load forecasts would deviate >4.5%
B. Contingency analysis results could be flawed
The contingency event recovery. Is how many minutes?
A. 60
B. 15
C. 90
D. 45
B. 15
The net scheduled interchange for a BA area is 150 MW out of its system and the actual interchange is 185 MW out. The frequency bias setting is 100 MW/0.1 Hz. The scheduled frequency was at 60 Hz and suddenly declined to 59.95 Hz. Which of the following is true about the balancing authorities ACE and what should the generation do?
A. ACE is +35 MW; decrease generation
B. ACE is -15 MW; increase generation
C. ACE is -35 MW; increase generation
D. ACE is +15 MW; decrease generation
B. ACE is -15 MW; increase generation
There are two transmission lines that have to be switched into service. Both lines are 500 KV lines and are identical in conductor construction. Line A is 100 miles long, while line B is 75 miles long. Which line will incur more charging when energized?
A. Line A
B. Line B
C. Neither, they will both be the same
D. Lying charging is not a concern when switching lines in service
A. Line A
An abnormally high voltage situation on a system can be corrected by
A. Removing capacitors
B. Directing generation to increase their VAR output
C. Reducing load
D. Decreasing power flow transfers
A. Removing capacitors
Each RC, TOP, and BA shall have ____ for when there is a loss of interpersonal communications capability.
A. A burst messaging system
B. Alternative communication capability
C. Multiple backup phone systems
D. Industrial rated satellite phones
B. Alternative communication capability
According to NERC standards, RCs, TOPs, BAs, GOPs, and LSEs can submit a report for a sabotage event on which of the following reports?
A. Event reporting form or DOE-OE-407
B. DOE -OE-407 or EEA 3 report
C. Event reporting form or DOE-OE-417
D. Event reporting form or EEA 3 Report
C. Event reporting form or DOE-OE-417
An indication that a line is loaded above its surge impedance level is that it
A. Generates VARs
B. Raises voltage
C. Absorbs VARs
D. Increases capacitance
C. Absorbs VARs
If a balancing authority has implemented interchange of 150 MW that started on the hour and was brought to 0 MW at 20 past the hour, what is the hourly integration for the transaction? Ignore all ramp rates
A. 50 MWhr
B. 100 MWhr
C. 25 MWhr
D. 150 MWhr
A. 50 MWhr
If the MSSC for a BA is a 900 MW gas fired steam unit, what is the DCS reporting threshold?
A. 670 MW
B. 720 MW
C. 180 MW
D. 810 MW
B. 720 MW
If a BA serves native load, the minimum the frequency bias setting that may be used is what percentage of the Balancing Areas's estimated yearly peak per 0.1 Hz change?
A. 3%
B. 2%
C. 5%
D. 1%
D. 1%
Balancing authority ABC is experiencing an operating capacity emergency and is relying on assistance provided by the interconnection frequency bias. Per NERC ABC shall ______
A. Figure out the most economical way to balance its interchange schedules and generation to its load
B. Request transmission loading relief from the interconnection until its load decreases
C. Keep absorbing inadvertent power from the interconnection until its load decreases
D. Balance its interchange schedules and generation to its load, without regard to financial cost
D. Balance its interchange schedules and generation to its load, without regard to financial cost
Net actual interchange minus net scheduled interchange is what?
A. The ACE equation
B. Inadvertent Interchange
C. Always equal to the frequency bias contribution
D. Meter error
B. Inadvertent interchange
During system restoration, system frequency should be maintained in which of the following ranges?
A. 59.75 - 61.00 Hz
B. 59.25 - 60.50 Hz
C. 58.50 - 60.05 Hz
D. 59.00 - 61.00 Hz
A. 59.75 - 61.00 Hz
The reliability coordinator shall verify that all delegated tasks are carried out by NERC certified _____ operating personnel
A. Reliability coordinator
B. Transmission operator
C. Delegated task
D. Balancing authority
A. Reliability coordinator
The plan for the loss of control center functionality shall include a summary description of the elements required to support the backup functionality which includes all the following except:
A. Tools and applications
B. Voice communications
C. Fully rested relief shifts
D. Data communications
C. Fully rested relief shifts
estore the ___ power balance
A. Generation and interchange
B. Scheduled and actual
C. Real and reactive
D. Static and dynamic
C. Real and reactive [Show Less]