ERCOT System Operator Certification
Exam QUESTIONS AND CORRECT
ANSWERS LATEST UPDATE THIS
YEAR.pdf
ERCOT
Electric Reliability Council of Texas, responsible for managing the electric grid.
N-1 criteria
A reliability standard ensuring that the system can withstand the loss of one element.
QSE
responsible for scheduling and dispatching resources.
TSP
responsible for providing transmission services.
SCED
Security Constrained Economic Dispatch, a process for dispatching generation.
Load Frequency Control (LFC)
A system to maintain scheduled frequency at 60 Hz.
Regulation Service
Service that helps maintain system frequency by adjusting generation output.
RRS
a type of reserve service for frequency control.
AGC
directs output of generation facilities.
, AVR
maintains voltage levels in the system.
Combustion Turbine (CT)
A type of generation resource that can provide power to the grid.
Time Error correction
Process initiated by ERCOT when time error exceeds +/- 30 seconds.
Voltage Support Service (VSS)
Service provided by generation resources to support voltage levels.
Operating Reserves
Resources maintained by ERCOT to help control system frequency.
Non-Spinning Reserve
Reserve that can be ramped to a specified output level within 30 minutes.
Droop setting
The maximum droop setting for a Combustion Turbine unit in ERCOT is 4%.
Deadband setting
The maximum deadband setting for a Controllable Load Resource is +/- 0.036 Hz.
Voltage Set Point instruction
Instruction that must be completed by resources within 5 minutes.
Dispatch Instruction
Instruction from ERCOT to disconnect non-MW producing generators within 15 minutes.
Frequency control
Maintaining the scheduled frequency at 60 Hz.
Reliability Must-Run Service
Exam QUESTIONS AND CORRECT
ANSWERS LATEST UPDATE THIS
YEAR.pdf
ERCOT
Electric Reliability Council of Texas, responsible for managing the electric grid.
N-1 criteria
A reliability standard ensuring that the system can withstand the loss of one element.
QSE
responsible for scheduling and dispatching resources.
TSP
responsible for providing transmission services.
SCED
Security Constrained Economic Dispatch, a process for dispatching generation.
Load Frequency Control (LFC)
A system to maintain scheduled frequency at 60 Hz.
Regulation Service
Service that helps maintain system frequency by adjusting generation output.
RRS
a type of reserve service for frequency control.
AGC
directs output of generation facilities.
, AVR
maintains voltage levels in the system.
Combustion Turbine (CT)
A type of generation resource that can provide power to the grid.
Time Error correction
Process initiated by ERCOT when time error exceeds +/- 30 seconds.
Voltage Support Service (VSS)
Service provided by generation resources to support voltage levels.
Operating Reserves
Resources maintained by ERCOT to help control system frequency.
Non-Spinning Reserve
Reserve that can be ramped to a specified output level within 30 minutes.
Droop setting
The maximum droop setting for a Combustion Turbine unit in ERCOT is 4%.
Deadband setting
The maximum deadband setting for a Controllable Load Resource is +/- 0.036 Hz.
Voltage Set Point instruction
Instruction that must be completed by resources within 5 minutes.
Dispatch Instruction
Instruction from ERCOT to disconnect non-MW producing generators within 15 minutes.
Frequency control
Maintaining the scheduled frequency at 60 Hz.
Reliability Must-Run Service
