EPRI Chapter Test Questions and answers
with 100% Complete Solutions | verified
&updated 2024
A balancing authority's frequency bias is equal to: - ✔✔The balancing authority's
frequency response characteristic (FRC), the natural response of the BA, The
AGC system's bias value.
All of the following are modes of AGC except: flat tie-line control, isochronous
control, flat-frequency control, tie-line bias control - ✔✔Isochronous control
In which stage of a generators response to a system disturbance is the power flow
supported primarily by the generators excitation field -
✔✔Electromagnetic energy state.
If system frequency were to run at 60.02Hz for two consecutive hours, how much
positive time error would occur? - ✔✔2.4s
, A Balance authority has a bias of -150MW. Frequency falls 0.05Hz due to an
external disturbance. How many MW would you expect this BA to provide to the
disturbance? - ✔✔+75MW
An isochronous governor has a droop setting of: - ✔✔0%
What element of the power system is typically most susceptible to damage frolm
prolonged operation at frequencies above or below 60Hz? - ✔✔Low
pressure turbine stage blades.
Hydro electric generators typically exhibit better governor response than thermal
generators because: - ✔✔Hydro-electric generators typically have more
stored energy.
with 100% Complete Solutions | verified
&updated 2024
A balancing authority's frequency bias is equal to: - ✔✔The balancing authority's
frequency response characteristic (FRC), the natural response of the BA, The
AGC system's bias value.
All of the following are modes of AGC except: flat tie-line control, isochronous
control, flat-frequency control, tie-line bias control - ✔✔Isochronous control
In which stage of a generators response to a system disturbance is the power flow
supported primarily by the generators excitation field -
✔✔Electromagnetic energy state.
If system frequency were to run at 60.02Hz for two consecutive hours, how much
positive time error would occur? - ✔✔2.4s
, A Balance authority has a bias of -150MW. Frequency falls 0.05Hz due to an
external disturbance. How many MW would you expect this BA to provide to the
disturbance? - ✔✔+75MW
An isochronous governor has a droop setting of: - ✔✔0%
What element of the power system is typically most susceptible to damage frolm
prolonged operation at frequencies above or below 60Hz? - ✔✔Low
pressure turbine stage blades.
Hydro electric generators typically exhibit better governor response than thermal
generators because: - ✔✔Hydro-electric generators typically have more
stored energy.
