Monitored Data - ABB RES670 Technical Manual

1MRK 511 408-UUS A
Table 110: NS4PTOC (46I2) Non group settings (basic)
Name Values (Range)
GlobalBaseSel 1 - 12
8.3.6
8.3.7
8.3.7.1
Phasor measurement unit RES670 2.2 ANSI
Technical manual
Unit Step
- 1

Monitored data

Table 111: NS4PTOC (46I2) Monitored data
Name Type
IOp REAL
VPol REAL
VPOLIANG REAL
Operation principle
Four step negative sequence overcurrent protection NS4PTOC (4612) function has the
following three "Analog Inputs" on its function block in the configuration tool:
1. I3P, input used for "Operating Quantity".
2. V3P, input used for "Polarizing Quantity".
3. I3PDIR, input used for "Directional finding"
These inputs are connected from the corresponding pre-processing function blocks in
the Configuration Tool within PCM600.
Operating quantity within the function
Four step negative sequence overcurrent protection NS4PTOC (46I2) function always
uses negative sequence current (I2) for its operating quantity. The negative sequence
current is calculated from three-phase current input within the IED. The pre-processing
block calculates I2 from the first three inputs into the pre-processing block by using the
following formula:
1
(
= × + × + ×
2
I 2 IA a IB a IC
3
ANSIEQUATION2266 V1 EN-US
Default
1
Values (Range)
-
-
-
)
Current protection
Description
Selection of one of the Global Base Value
groups
Unit Description
A Operating current level
kV Polarizing voltage level
deg Polarizing angle between
voltage and current
GUID-8923EC0B-A5BA-431B-9699-EB67E2637560 v3
GUID-8F0A5BDE-AC98-4188-9085-42A8DF00C476 v3
Section 8
PID-4151-MONITOREDDATA v4
(Equation 21)
221