Which fault is most severe in power system and why?
Answers
well a three phase (LLLG)symmetrical fault is the most severe fault in any type of system when compared to any other fault. But this also the rarest fault occurring in a system. Whereas a LG fault is the most common fault and is more severe when the fault impedance is zero that is neutral is solidly grounded.
Answer:
LLLG (line to line to line and ground)is the most severe fault for generators and will damaged maximum to generator with same current(fault) level of other types of faults. Three-line fault is the most sever fault.
Explanation:
Three-segment symmetrical faults are acknowledged to be the maximum intense in a power machine because of large fault currents. however, single section phase to floor faults are extra commonplace faults that occurs. If now not checked in due time, those faults may additionally develop to symmeterical fault which is uncommon but maximum extreme
those are the maximum common and intense sort of faults, resulting within the go with the flow of odd excessive currents via the device or transmission strains. If these faults are allowed to persist even for a brief period, it results in the substantial harm to the device.
manifestly symmetrical fault is more intense than asymmetrical fault. throughout symmetrical fault all of the three phase of the transmission line is short circuited with every with other or all them are grounded . in the course of this type of fault huge short circuit modern-day will drift from all the 3 segment to floor.
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