🔍 Key Concepts

• Function of a reverse current relay in DC generator systems • What happens when a DC generator is paralleled without proper equalizing connections • How a generator can become motorized and why that is a problem

💭 Think About

• Think about which device is specifically designed to sense current flowing from the bus back into the generator instead of from the generator to the bus • Consider which options are protective devices for electrical current direction, versus devices that protect against speed, pressure, or engine power • Ask yourself: in a DC system, what component disconnects the generator automatically if the bus voltage becomes higher than the generator voltage?

✅ Before You Answer

• Verify which choice is a protective electrical relay related to current direction in DC systems • Eliminate any options that are clearly related to mechanical speed or fluid/steam pressure rather than electrical current • Confirm which device would act before the generator starts drawing power and turning like a motor