Question

Consider the following statements regarding load frequency control:
1. Time constant of automatic load frequency control is about 15 seconds.
2. Integral control eliminates static frequency drop.
3. In tie-line load bias control, the control signal for each area is proportional to change in frequency as well as change in tie-line power.

Which of the statements given above are correct?

• A. 1, 2 and 3.
• B. 1 and 2.
• C. 1 and 3.
• D. 2 and 3.

Answer 1

The correct option is D 2 and 3.

2 and 3.