Aux 1 Unit 12 Q2

1 / 10

What is the most common method to test a generator reverse power trip for correct operation?

D) Overload the generator deliberately

C) Increase the generator's load to maximum capacity

A) Manually disconnect the generator from the bus bar

B) Gradually reduce the generator's load until it begins to motor, simulating a reverse power condition

2 / 10

What is the correct procedure for testing a generator over-current trip?

D) Run the generator without any load

B) Disconnect the generator manually

A) Gradually increase the load until the current exceeds the trip setting, causing the generator to trip off the line

C) Decrease the generator's voltage output

3 / 10

What is the purpose of testing the generator over-current alarm?

C) To increase the generator's voltage output

B) To verify that the alarm will sound when the generator's current exceeds safe levels, allowing for corrective action before a trip occurs

D) To disable the generator's safety features

A) To ensure the generator can handle any load

4 / 10

How can a generator over-current alarm be tested for proper operation?

C) By shutting down the generator

B) By reducing the generator's voltage output

D) By switching the generator to standby mode

A) By gradually increasing the generator's load until the current exceeds the preset limit

5 / 10

Why is it important to test the generator reverse power trip?

C) To increase the generator's efficiency

B) To confirm the generator will disconnect automatically if it starts to absorb power from the grid, preventing potential damage

A) To ensure the generator operates at full load capacity

D) To decrease the generator's output

6 / 10

How can the preferential tripping sequence be tested?

A) By increasing the load on non-essential circuits until the system reaches its maximum capacity

C) By disconnecting all loads from the system

D) By reducing the system's capacity

B) By deliberately overloading the system to see if non-essential loads are shed in the correct order

7 / 10

Why is it important to test the emergency generator's auto start-up feature?

C) To increase the load on the main generator

D) To prevent the generator from starting

A) To ensure the generator does not start under any conditions

B) To verify that the emergency generator will automatically start and provide power during a main power failure, ensuring continuous operation of essential equipment

8 / 10

Why is it critical to test the generator over-current trip?

D) To ensure the generator can run without interruptions

A) To prevent the generator from running efficiently

B) To confirm that the generator will automatically disconnect when the current exceeds safe operating limits, preventing damage to the generator and the electrical system

C) To increase the load capacity of the generator

9 / 10

Why is testing the preferential tripping sequence important?

B) To ensure that non-essential loads are shed in the correct order, maintaining power to essential systems and preventing a total blackout

C) To increase the system's power output

A) To prevent the system from operating efficiently

D) To disconnect all loads from the system

10 / 10

What is the procedure to test the auto start-up of an emergency generator?

B) Increase the load on the main generator

D) Reduce the fuel supply to the emergency generator

C) Manually start the emergency generator

A) Disconnect the main power supply to simulate a power failure

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