Question 189Electricity & Electronics - QMED

70% to pass

To remove an alternator operating in parallel with another unit from the main electrical bus, what must be done FIRST?

Aadjust the power factor on both units

Bset the desired voltage on the outgoing alternator

Copen the circuit breaker on the outgoing alternator

Dremove the load from the outgoing alternator

AI Explanation

The correct answer is D) remove the load from the outgoing alternator. To remove an alternator operating in parallel with another unit from the main electrical bus, the first step is to remove the load from the outgoing alternator. This is because with the load still connected, removing the alternator from the bus would result in a sudden loss of power, which could potentially damage the electrical system. By removing the load first, the transition can be made smoothly without disrupting the power supply. The other options, such as adjusting the power factor or setting the desired voltage, would not be the appropriate first step in this scenario.