Question

If the circuit protective devices open when the current reaches the FLC, what would happen?

a) The circuit would operate normally
b) There would be a short circuit
c) The circuit would become overloaded
d) The circuit would open, interrupting power flow

Answer 1

When circuit protective devices open at Full Load Current (FLC), the circuit would open, interrupting power flow to prevent damage and hazardous situations. Circuit breakers and fuses act like automatic switches that open when the sustained current exceeds desired limits, protecting the circuit from overloading and reducing the risk of fire.

Step-by-step explanation:

When the circuit protective devices, such as circuit breakers or fuses, open when the current reaches the Full Load Current (FLC), it means that the circuit has exceeded its safe operating limit. As a result, the circuit would open, interrupting the power flow. This is done to protect the circuit from damage and prevent hazardous situations, such as overheating or short circuits.

Circuit breakers and fuses act like automatic switches that open when the sustained current exceeds desired limits. By opening the circuit, they prevent further flow of current. This helps to avoid overloading the circuit, damaging the electrical components, and reducing the risk of fire.