Function
Range or value
Accuracy
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
and Table
16 curve types
and
Table
Second harmonic blocking
(5–100)% of fundamental
±2.0% of I
n
Minimum polarizing voltage
(1–100)% of
VBase
±0.5% of V
n
Minimum polarizing current
(2-100)% of
IBase
±1.0% of I
n
Real part of source Z used for
current polarization
(0.50-1000.00)
W
/phase
-
Imaginary part of source Z used
for current polarization
(0.50–3000.00)
W
/phase
-
Trip time, pickup non-directional
at 0 to 2 x I
set
Min. = 15 ms
Max. = 30 ms
-
Reset time, pickup non-
directional at 2 to 0 x I
set
Min. = 15 ms
Max. = 30 ms
-
Trip time, pickup non-directional
at 0 to 10 x I
set
Min. = 5 ms
Max. = 20 ms
-
Reset time, pickup non-
directional at 10 to 0 x I
set
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
-
8.3
Four step directional negative phase sequence
overcurrent protection NS4PTOC (46I2)
8.3.1
Identification
Function description
IEC 61850
identification
IEC 60617 identification ANSI/IEEE C37.2
device number
Four step negative sequence
overcurrent protection
NS4PTOC
I2
4
4
alt
IEC10000053 V1 EN
46I2
Section 8
1MRK 511 365-UUS A
Current protection
212
Phasor measurement unit RES670 2.1 ANSI
Technical manual
Summary of Contents for Relion 670 Series RES670
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