Question 189Electricity & Electronics - QMED
70% to passTo 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.
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