The screens showed live footage from several angles of a massive diesel ... or a generator goes out of sync, it’s those protective relays that detect the anomaly and open a circuit breaker ...

Portable generators convert mechanical energy into electrical energy, oftentimes relying on gas to kickstart the process (though you can also find diesel ... in the circuit the generator is ...

This needn't cause the rail system to grind to a halt; the diesel engines are still on board, ready to go if needed. While connected to the grid for charging, they could also provide valuable fast ...