Schweitzer Engineering Laboratories SEL-387E - Page 367

Date Code 20080110 Analyzing Events 9-15
SEL-387E Instruction Manual
Table 9.5: Differential Event Report Current Columns
Column Heading Definition
IOP1 Operate current for differential element 1 (multiples of tap)
IRT1 Restraint current for differential element 1 (multiples of tap)
I1F2 Second-harmonic current for differential element 1 (multiples of tap)
I1F5 Fifth-harmonic current for differential element 1 (multiples of tap)
The following table summarizes the digital event report columns.
Table 9.6: Differential Event Report Element Columns
Column Symbol Definition
All . All indication deasserted
Dif El
87RU
R
U
b
87R asserted
87U asserted
87R and 87U asserted
Dif El
87 1
R
U
b
87R1 asserted
87U1 asserted
87R1 and 87U1 asserted
Dif El
87 2
R
U
b
87R2 asserted
87U2 asserted
87R2 and 87U2 asserted
Dif El
87 3
R
U
b
87R3 asserted
87U3 asserted
87R3 and 87U3 asserted
Dif El
87B 1
1
.
87BL1 asserted
87BL1 not asserted
Dif El
87B 2
1
.
87BL2 asserted
87BL2 not asserted
Dif El
87B 3
1
.
87BL3 asserted
87BL3 not asserted
Dif El
HB 1
2
5
b
2HB1 asserted
5HB1 asserted
2HB1 and 5HB1 asserted
Dif El
HB 2
2
5
b
2HB2 asserted
5HB2 asserted
2HB2 and 5HB2 asserted
Dif El
HB 3
2
5
b
2HB3 asserted
5HB3 asserted
2HB3 and 5HB3 asserted