Sel SEL-421 - Breaker 2 Synchronism Check; Recloser and Manual Closing

R.10.30
SEL-421 Relay Reference Manual Date Code 20111215
Settings
Group Settings
Make Table 10.64 settings if Group setting E25BK2 := Y.
Make Table 10.65 through Table 10.67 settings if Group settings E79 := Y or
Y1 or EMANCL := Y. The number of settings also depends on the Global
settings NUMBK := 1 or 2, BK1TYP := 1 or 3, and BK2TYP := 1 or 3.
ANG1BK1 Maximum Angle Difference 1—BK1 (3.0–80
degrees)
10.0
ANG2BK1 Maximum Angle Difference 2—BK1 (3.0–80
degrees)
10.0
TCLSBK1 Breaker 1 Close Time (1.00–30 cycles)
a
8.00
BSYNBK1 Block Synchronism Check—BK1
(SEL
OGIC Equation)
NA
a
Adjust setting TCLSBK1 in 0.25-cycle steps.
Table 10.64 Breaker 2 Synchronism Check
Label Prompt Default Value
SYNCS2 Synchronism Source 2
( VAY, V B Y, V C Y, VA Z , V B Z, V CZ)
VBZ
KS2M Synchronism Source 2 Ratio Factor (0.10–3) 1.00
KS2A Synchronism Source 2 Angle Shift (0, 30, 60, 90, 120,
150, 180, 210, 240, 270, 300, 330 degrees)
0
ALTS2 Alternative Synchronism Source 2
(SEL
OGIC Equation)
NA
ASYNCS2 Alternative Synchronism Source 2
( VAY, V B Y, V C Y, VA Z , V B Z, V CZ)
VCZ
AKS2M Alternative Synchronism Source 2 Ratio Factor
(0.10–3)
1.00
AKS2A Alternative Synchronism Source 2 Angle Shift (0, 30,
60, 90, 120, 150, 180, 210, 240, 270, 300, 330
degrees)
0
25SFBK2 Maximum Slip Frequency—BK2 (OFF, 0.005–0.5
Hz)
0.050
ANG1BK2 Maximum Angle Difference 1—BK2 (3.0–80
degrees)
10.0
ANG2BK2 Maximum Angle Difference 2—BK2 (3.0–80
degrees)
10.0
TCLSBK2 Breaker 2 Close Time (1.00–30 cycles)
a
a
Adjust setting TCLSBK2 in 0.25-cycle steps.
8.00
BSYNBK2 Block Synchronism Check—BK2
(SEL
OGIC Equation)
NA
Table 10.65 Recloser and Manual Closing
a
(Sheet 1 of 2)
Label Prompt Default Value
NSPSHOT Number of Single-Pole Reclosures (N, 1, 2) N
ESPR1 Single-Pole Reclose Enable—BK1
(SEL
OGIC Equation)
NA
ESPR2 Single-Pole Reclose Enable—BK2
(SEL
OGIC Equation)
NA
Table 10.63 Breaker 1 Synchronism Check (Sheet 2 of 2)
Label Prompt Default Value