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SOS Practice questions and and answers 2024
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SOS Practice questions
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SOS Practice questions24 hours - answer An event reporting form must be submitted for a system disturbance
that meets NERC criteria for reporting and must be completed with in
Take snapshot of system, adjust system model, run AC on Study - answer The power
flow tool provides the system operator with the ability to do which of the following
Call EMS Support personnel to get SE running - answer If State Estimator fails to solve,
what should the system operator take
Contingency Analysis can be run on the results of Study Power Flow - answer what is
the relationship between the Study Power Flow program and Contingency Analysis?
an internal generator trip - answer If your system is experiencing high system loads,
high system imports, and transmission facilities loaded to 100%, which of the following
situations would make the situation worse
SE runs first and then CA runs suing the results of SE - answer which of the following
best describes the sequence of State Estimator and Contingency Analysis
CA uses the results of SE to solve - answerWhich of the following statements is ture
about the relationship between State Estimator and Contingency Analysis
150 MW - answerA transformer has a .8 or 80% power factor and has 150 MW flowing
out on its high side. How many MWs are flowing into the low side?
a. 187.5 MW
b. 150 MW
c. 120 MW
d. 37.5 MW
c. 50 - answerYour frequency bias is -100 MW / .1Hz. System frequency is 59.95. How
much is your balancing authority contributing to the Interconnection.
a. 100 MW
c. 50 MW
b. 75 MW
d. 30 MW
, d. A condition of abnormal electric current which causes protective relays to operate -
answerA fault has occurred in your power system. What will the System Operator look
for?
a. A condition where a component is not in sync with the rest of the system
b. A condition that causes a device, component, or element to fail
c. A condition of abnormal electric current
d. A condition of abnormal electric current which causes protective relays to operate
a. Generators - answerWhat makes up spinning reserves?
a. Generators
b. Synchronous condensers
c. Capacitors
d. Reactor
c. Power Losses - answerWhat does I2R indicate?
a. Voltage
b. Resistance
c. Power Losses
d. Transformers
a. Inertia - answerWhat resists an initial decline in system frequency following a
disturbance?
a. Inertia
b. AGC
c. AVR
d. Frequency Bias
c. Tie Line Bias - answerWhat is the primary AGC control mode that will best indicate a
Balancing Authorities generation-load-interchange balance?
a. Generators on Auto
b. Flat Interchange control
c. Tie Line Bias
d. Constant Frequency
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