Date Code 20080110 Control Logic 4-31
SEL-387E Instruction Manual
Row Bit Definition
15 59Q Negative-sequence overvoltage picked up
59G2 Level 2 residual overvoltage picked up
59G1 Level 1 residual overvoltage picked up
59V1 Positive-sequence overvoltage picked up
59PP2 Level 2 phase-phase overvoltage picked up
59PP1 Level 1 phase-phase overvoltage picked up
59P2 Level 2 phase overvoltage picked up
59P1 Level 1 phase overvoltage picked up
16 81D1 Level 1 frequency element
81D2 Level 2 frequency element
81D3 Level 3 frequency element
81D4 Level 4 frequency element
81D5 Level 5 frequency element
81D6 Level 6 frequency element
ISQTAL Cumulative through-fault I
2
t on a phase of a designated winding has
exceeded the through-fault I
2
t threshold ISQT
27B81 Undervoltage element for frequency blocking
17 81D1T Level 1 definite-time frequency element
81D2T Level 2 definite-time frequency element
81D3T Level 3 definite-time frequency element
81D4T Level 4 definite-time frequency element
81D5T Level 5 definite-time frequency element
81D6T Level 6 definite-time frequency element
* Reserved for future use
* Reserved for future use
18 87U1 Unrestrained differential element 1 picked up
87U2 Unrestrained differential element 2 picked up
87U3 Unrestrained differential element 3 picked up
87U Unrestrained differential element picked up
87R1 Restrained differential element 1 picked up
87R2 Restrained differential element 2 picked up
87R3 Restrained differential element 3 picked up
87R Restrained differential element picked up
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