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What is the difference between short circuit and overload
currents?
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Answer Posted / crosswind
I agree with answer #8 short circuit have diffrent types of
fauls L-L, L-G, 3ph S/Cetc seee iec-60909.the S/C current
when to hot wires (un-grounded) wire make unintended
contact with each other; p 2 p S/c has thus been created.It
created unbalance fault of the system.This means
interruption of the system.... unlike Overload current is
interrrupted the load itself by means of overload
protection setting (Thermal Load) relay operated well to
trip. This mostly different not the same ..In shotr S/c
interrrup the system Max. interrrupting value (Ka) while
Overload currents happens only in motors stated by answer#8
Additinally,S/C analysis is onthe importance in power
system study because it protec the whole system by the
right choices of prtection device and by the right study of
devise -coordination the tripping curve will not overlap
with respect to the point of S/C fault who will be the
first to tripp rather than the last breker it was so called
the selection of the right tripping ( Long & Short Circuit
delay)
| Is This Answer Correct ? | 4 Yes | 14 No |
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