7.5.8 Technical data
GUID-10E9194D-3AE9-4D0F-867E-473E6F4BF443 v1
GUID-E83AD807-8FE0-4244-A50E-86B9AF92469E v6
Table 99: NS4PTOC technical data
Function
Range or value Accuracy
Operate current, step 1 - 4 (1-2500)% of
lBase
±1.0% of I
r
at I £ I
r
±1.0% of I at I > I
r
Reset ratio > 95% at (10-2500)% of
IBase
-
Independent time delay at 0 to 2 x I
set
,
step 1 - 4
(0.000-60.000) s ±0.2% or ±35 ms
whichever is greater
Minimum operate time for inverse curves,
step 1 - 4
(0.000 - 60.000) s ±0.2% or ±35 ms
whichever is greater
Inverse time characteristics, see table
674, table 675 and table 676
16 curve types See table 674,
table 675 and table
676
Minimum operate current, step 1 - 4
(1.00 - 10000.00)% of
IBase
±1.0% of I
r
at I ≤ I
r
±1.0% of I at I > I
r
Relay characteristic angle (RCA) (-180 to 180) degrees
±2.0 degrees
Operate current for directional release (1–100)% of
IBase
For RCA ±60 degrees:
±2.5% of I
r
at I ≤ I
r
±2.5% of I at I > I
r
Minimum polarizing voltage (1–100)% of
UBase
±0.5% of U
r
Operate time, start non-directional at 0 to
2 x I
set
Min. = 15 ms
Max. = 30 ms
-
Reset time, start non-directional at 2 x I
set
to 0
Min. = 15 ms
Max. = 30 ms
-
Operate time, start non-directional at 0 to
10 x I
set
Min. = 5 ms
Max. = 20 ms
-
Reset time, start non-directional at 10 x
I
set
to 0
Min. = 20 ms
Max. = 35 ms
-
Critical impulse time 10 ms typically at 0 to 2 x I
set
-
Impulse margin time 15 ms typically -
Transient overreach <10% at τ = 100 ms -
7.6 Sensitive directional residual overcurrent and power
protection SDEPSDE
SEMOD171436-1 v4
7.6.1 Identification
SEMOD172025-2 v4
Function description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Sensitive directional residual over
current and power protection
SDEPSDE - 67N
1MRK 506 382-UEN A Section 7
Current protection
Line distance protection REL650 2.2 IEC 217
Technical manual
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