Incsys LMS Flashcards
What is ELi the iCe Man?
For a Reactor (L), the voltage E leads the current I
For a Capacitor (C), the Current I leads the voltage E
What is the highest transmission voltage in the United States today?
765 kV
In regards to state standards, what is RPS?
Renewable Portfolio Standards
In the United States, there is roughly _________ gigawatts of load.
1000
CPS 1 is based on….
Minute-by-minute calculations based on a control area’s ACE and interconnection frequency.
CPS 2 is based on…
10-minute averages of ACE to detect and penalize prolonged periods control area
In regards to NERC Standards, CPS refers to ____________.
Control Performance Standard
Since CPS 1 is a rolling average value…
BA’s can make up for lost generation over time.
A BA may elect to fulfill its contingency reserve obligations by participating in a _____________
Reserve sharing group
In ERCOT, time error correction is initiated when the clock is fast or slow by ________ seconds.
3
In the East, time error correction is initiated when the clock is fast or slow by __________ seconds.
10
In the West, time error correction is initiated when the clock is fast or slow by ________ seconds.
5
The BA must review probable contingencies at least _________.
Annually
The BA or RSG provides a DCS report to its Regional Reliability Organization…
Every quarter
Time error is corrected by…
Scheduling a frequency change
When fixing a time error, a 0.2 change in Hz for one hour will result in…
1.2 seconds of correction
What are cases where a governor will not actually respond?
At capacity limit
Minor deviations in frequency
Governor is blocked
Large dead band setting
The term that describes a governor continuously adjusting the MW output to hold a frequency set point is known as as….
Isochronous mode
What is the purpose of the governor?
Maintain shaft speed of a turbine
Direct the throttle valve to open in a low-frequency condition
If reactance on all parallel paths are equal, then the Power Transfer Distribution Factors will be…
Equal
PTDF’s can be used again when…
The system configuration has not changed
PTDF’s should be recalculated when…
A line has been removed from service.
The total reactance of a path is the ____________ of the reactance for each length.
Sum
When observing a flow over parallel lines, you would expect a lower voltage line to have a _____________ Power Transfer Distribution Factor.
Lower