Table 28. Sensitive directional residual overcurrent and power protection SDEPSDE (67N)
Function Range or value Accuracy
Operate level for 3I
0
·cosj
directional residual
overcurrent
(0.25-200.00)% of
lBase
At low setting:
(2.5-10) mA
(10-50) mA
± 1.0% of I
n
at I £ I
n
± 1.0% of I at I > I
n
±0.5 mA
±1.0 mA
Operate level for ·3I0·3V
0
·
cosj directional residual
power
(0.25-200.00)% of
SBase
At low setting:
(0.25-5.00)% of
SBase
± 2.0% of S
n
at S £ S
n
± 2.0% of S at S > S
n
± 10% of set value
Operate level for 3I
0
and j
residual overcurrent
(0.25-200.00)% of
lBase
At low setting:
(2.5-10) mA
(10-50) mA
± 1.0% of I
n
at £ I
n
± 1.0% of I at I > I
n
±0.5 mA
±1.0 mA
Operate level for non-
directional overcurrent
(1.00-400.00)% of
lBase
At low setting:
(10-50) mA
± 1.0% of I
n
at I £ I
n
± 1.0% of I at I > I
n
± 1.0 mA
Operate level for non-
directional residual
overvoltage
(1.00-200.00)% of
VBase
± 0.5% of V
n
at V£V
n
± 0.5% of V at V > V
n
Residual release current for
all directional modes
(0.25-200.00)% of
lBase
At low setting:
(2.5-10) mA
(10-50) mA
± 1.0% of I
n
at I £ I
n
± 1.0% of I at I > I
n
±0.5 mA
± 1.0 mA
Residual release voltage for
all directional modes
(1.00 - 300.00)% of
VBase
± 0.5% of V
n
at V£V
n
± 0.5% of V at V > V
n
Reset ratio > 95% -
Timers (0.000-60.000) s ± 0.5% ±25 ms
Inverse characteristics, see
table 70, table 71 and table 72
17 curve types ANSI/IEEE C37.112
IEC 60255–151
+100 ms±(3% or 90 ms)
0.10 ≤ k ≤ 3.00
1.5 x I
set
≤ I ≤ 20 x I
set
Relay characteristic angle
RCA
(-179 to 180) degrees ± 2.0 degrees
Relay open angle ROA (0-90) degrees ± 2.0 degrees
Operate time, non-directional
residual over current
80 ms typically at 0.5 to 2 x I
set
-
Bay control REC650 ANSI 1MRK 511 265-BUS B
Product version: 1.2
ABB 77
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