Problem 2: In the given two bus single breaker setup, answer the following questions clearly in steps with re-drawings of the bus arrangement. (Answer must be typed a. How does an operator perform maintenance on Circuit Breaker CBc with minimum disturbances to the system? b Can an operator perform maintenance on Circuit Breakers CBc and CBo at the same time without weakening the system overall protection? #1 #2 A B C D Problem 3: In the double-bus arrangement shown below, Circuit Breaker B3 must be taken out of service for repair Starting with all equipments in service, make a list of operations required to take the CB out of service, and to return it to service. Remember that disconnect switches are generally not designed to break or make load current. (Answer must be typed) 2 L1