After BPU engine startup, which component supplies power to the DC system?

The component that supplies power to the DC system after the BPU engine startup is the battery charging alternator. This is a key part of the electrical system in a vehicle or equipment because its primary function is to generate electricity and recharge the batteries while the engine is running.

When the engine is started, the alternator begins to produce electrical energy, which then powers the DC system and ensures that the batteries remain charged. This is crucial because the batteries not only start the engine but also provide power to various electrical components when the engine is off.

The correct operation of the battery charging alternator helps maintain the overall efficiency and reliability of the electrical system, ensuring that all connected devices function properly. In contrast, while static energy, an external DC generator, or absorbed glass mat batteries play roles in power systems, they do not directly supply power to the DC system immediately following engine startup like the battery charging alternator does.