• If the current is still above the set value of the minimum operating current (between 10 and
30% of the set terminal rated current
IBase
), the condition seals in.
• If the fault has caused tripping, the trip endures.
• If the fault was detected in the reverse direction, the measuring element in the reverse
direction remains in operation.
• If the current decreases below the minimum operating value, the memory resets until the
positive sequence voltage exceeds 10% of its rated value.
The directional setting is given as a characteristic angle
AngleRCA
for the function and an angle
window
ROADir
.
Section 8 1MRK 502 066-UUS B
Current protection
462
Technical manual
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