the magnetic portion of a standard circuit breaker? select one: a. provides an instantaneous trip for high levels of current b. protects the circuit from heat damage generated by lower level currents c. prevents the device from tripping due to a short circuit d. provides a trip delay for high levels of current

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14-10-2022
Physics

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the magnetic portion of a standard circuit breaker? select one: a. provides an instantaneous trip for high levels of current b. protects the circuit from heat damage generated by lower level currents c. prevents the device from tripping due to a short circuit d. provides a trip delay for high levels of current

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charithran8975 charithran8975 · Answer 1 · 2022-10-20T02:17:57-04:00

Fuse, breakers, and other overcurrent protection devices set an appropriate current limit and sever short circuits.

The size of the overcurrent protection system depends on the overcurrent protection system type and the maximum current that can travel through the circuit components. National codes specify the size and design of the overcurrent protection system. The size of the overcurrent protection devices is typically determined by the array's short-circuit current.

The PV is a limited current source, meaning that the short-circuit current is the highest current produced by this source, which is the major justification for choosing the array's short-circuit current.

The distribution lines of electric grids integrated with DER are safeguarded by an overcurrent protection system. The phase overcurrent protection and the ground overcurrent protection are two further classifications for this protection strategy. Depending on the distribution method, the relays employed in such schemes could be either directional (functioning for in-front events) or nondirectional (working for all). Radial distribution systems are where nondirectional relays are most frequently employed.

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