Over load calculation

Question

Accepted Answer

Overload calculation involves determining the maximum load that a system can handle without causing damage or failure.

Overload calculation is important in electrical engineering to ensure the safety and efficiency of electrical systems.
It involves analyzing the power consumption of various components and determining if they exceed the system's capacity.
Factors to consider include the rated power of devices, the duration of operation, and the ambient temperature.
For example, if a circuit is designed to handle a maximum load of 10 amps, but the total load exceeds this value, it may lead to overheating and potential damage.
Overload protection mechanisms such as fuses or circuit breakers are used to prevent excessive current flow and protect the system.

Accepted Answer

The overloads are determined using 125% of the FLA, 7A x 1.25 = 8.75A. The maximum allowable size for the overloads is 9.8A. The overloads can be sized at 140% of the FLA if the overloads trip at rated load or will not allow the motor to start, 7A x 1.4 =9.8A

Over load calculation

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