•Given the function: F(x,y,z) = x'yz'+ x'yz •List the truth table for F •Simplify the expression using: : Boolean expressions •Find the truth table for F (simplified). What can you say about the two truth tables? •Can you draw the logic circuit for the simplified expression?

How do voltage and frequency control mechanisms ensure the stability of power grids?

3. When a major fault occurs, in order to stabilize the power system, the system immediately uses . automatic generator control b. governor control c. automatic dispatch d. relays 4. during a major hurricane, a lightning strikes a transmission line carrying power from Oregon to California. The frequency of the power system in California will a. increase above 60HZ b. Fall below 60 Hz c.) Stays the same.

(5) Discuss the similarities and differences of relay construction between Directional Blocking Pilot Protection (Figure and Impedance Blocking Pilot Protection (Figure ). Figure Figure Trip 4 KM4 2 12 3 5 KM5 The construction of each relay with Directional Blocking Pilot Protection Trip+ Sending U KS KM1 Z III t III ZI Z II↑ t II KM2 Receiving he construction of each relay with Impedance Blocking Pilot Protection