BAL

Question 1

You are an external Balancing Authority with a frequency bias of 20MW/ 0.1 Hz that sees a frequency of 60.02 Hz due to a large loss of load in the contingent Balancing Authority. If your generator governor control systems responded to this frequency deviation, approximately how much of a generation change would your Balancing Authority experience?

a. 1.2 MW
b. -4 MW
c. -40 MW
d. +4 MW

Answer 1

B

Question 2

Net Actual Interchange minus Net Scheduled Interchange is what?

a. Always equal to the frequency bias contribution
b. The ACE equation
c. Inadvertent interchange
d. Meter error

Answer 2

C

Question 3

The normal and recommended mode of Automatic Generation Control (AGC) is what?

a. Net tie-line
b. Flat 60Hz frequency
c. Predictor-corrector
d. Tie-line frequency bias

Answer 3

D

Question 4

Which of the following complies with the Control Performance Standard?

a. CPSI = 90%
b. CPSI = 95%
c. CPSI = 135%
d. CPSI = 205%

Answer 4

C

Question 5

If Balancing Authority ABC’s RTU signal for power flow over ABC’s Midway tie-line with Balancing Authority XYZ is significantly in error, the ABC system operator shall…

a. Adjust the control settings (e.g. substitute a value for the tie line power flow in the energy management system) to compensate for the equipment error until repairs can be made
b. Not make any adjustments, but after the RTU gets repaired, perform a true-up calculation on the inadvertent account
c. Call the XYZ Balancing Authority and set up an inadvertent interchange schedule that is larger than the RTU error
d. Let the AGC system handle the problem

Answer 5

A