Date Code 990430 Setting the SEL-351P Recloser Control 9-31
SEL-351P Manual Técnico
Row
Bit
Definition
Primary
Application
21 59S2 Channel VS instantaneous overvoltage element
(channel VS voltage above pickup setting 59S2P; see
Figure 3.23)
59VP Phase voltage window element (selected phase
voltage [VP] between threshold settings 25VLO and
25VHI; see Figure 3.24)
Testing
59VS Channel VS voltage window element (channel VS
voltage between threshold settings 25VLO and
25VHI; see Figure 3.24)
SF Slip frequency between voltages VP and VS less
than setting 25SF (see Figure 3.24)
25A1 Synchronism check element (see Figure 3.25) Control
25A2 Synchronism check element (see Figure 3.25)
3P27 27A1 * 27B1 * 27C1 (see Figure 3.21)
3P59 59A1 * 59B1 * 59C1 (see Figure 3.21)
22 81D1 Level 1 instantaneous frequency element (with
corresponding pickup setting 81D1P; see
Figure 3.28)
Testing
81D2 Level 2 instantaneous frequency element (with
corresponding pickup setting 81D2P; see
Figure 3.28)
81D3 Level 3 instantaneous frequency element (with
corresponding pickup setting 81D3P; see
Figure 3.28)
81D4 Level 4 instantaneous frequency element (with
corresponding pickup setting 81D4P; see
Figure 3.28)
81D5 Level 5 instantaneous frequency element (with
corresponding pickup setting 81D5P; see
Figure 3.28)
81D6 Level 6 instantaneous frequency element (with
corresponding pickup setting 81D6P; see
Figure 3.28)
27B81 Undervoltage element for frequency element
blocking (any phase voltage below pickup setting
27B81P; see Figure 3.27)
50L Phase instantaneous overcurrent element for load
detection (maximum phase current above pickup
setting 50LP; see Figure 5.3)
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