Schweitzer Engineering SEL-351P, Quick Start Manual

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Date Code 990430 Setting the SEL-351P Recloser Control 9-27
SEL - 351P Manual Técnico
Row
Bit
Definition Primary
Application
67Q3T** Level 3 negative-sequence definite-time overcurrent
element 67Q3T timed out (derived from 67Q3; see
Figure 3.12)
67Q4T** Level 4 negative-sequence definite-time overcurrent
element 67Q4T timed out (derived from 67Q4; see
Figure 3.12)
14 50P5 Level 5 phase instantaneous overcurrent element
(maximum phase current above pickup setting
50P5P; see Figure 3.2) Tripping,
Control
50P6 Level 6 phase instantaneous overcurrent element
(maximum phase current above pickup setting
50P6P; see Figure 3.2)
50N5 Level 5 neutral ground instantaneous overcurrent
element (neutral ground current [channel IN] above
pickup setting 50N5P; see Figure 3.9)
50N6 Level 6 neutral ground instantaneous overcurrent
element (neutral ground current [channel IN] above
pickup setting 50N6P; see Figure 3.9)
50G5 Level 5 residual ground instantaneous overcurrent
element (residual ground current above pickup
setting 50G5P; see Figure 3.11)
50G6 Level 6 residual ground instantaneous overcurrent
element (residual ground current above pickup
setting 50G6P; see Figure 3.11)
50Q5** Level 5 negative-sequence instantaneous overcurrent
element (negative-sequence current above pickup
setting 50Q5P; see Figure 3.13) Control
50Q6** Level 6 negative-sequence instantaneous overcurrent
element (negative-sequence current above pickup
setting 50Q6P; see Figure 3.13)
15 50QF Forward direction negative-sequence overcurrent
threshold exceeded (see Figures 4.4, 4.5, 4.9, and
4.17) Testing
50QR Reverse direction negative-sequence overcurrent
threshold exceeded (see Figures 4.4, 4.5, 4.9, and
4.17)
50GF Forward direction residual ground overcurrent
threshold exceeded (see Figures 4.4, 4.6, and 4.10)
50GR Reverse direction residual ground overcurrent
threshold exceeded (see Figures 4.4, 4.6, and 4.10)