Monitored Data; Technical Data - ABB RELION 620 Series Technical Manual

Section 4
Protection functions
4.7.1.8
4.7.1.9
502

Monitored data

Table 368: 21P Monitored data
Name Type
RELEASE_PP Enum
STARTS_GFC Enum
FLTLOOP_RPP FLOAT32
FLTLOOP_XPP FLOAT32
21P Enum

Technical data

Table 369: 21P Technical data
Characteristic
Pickup accuracy
1)2)
Pickup time
Reset time
Reset ratio
Trip time accuracy in definite time mode
Suppression of harmonics
1) Includes the delay of the signal output contact
2) Relates to pickup signals of the zones Z1...Z5
Values (Range) Unit
0=No fault
4=BC Fault
5=CA Fault
6=ABC Fault
7=AB Fault
0=No fault
4=AB Fault
5=BC Fault
6=CA Fault
7=ABC Fault
-1000.00...1000. ohm
00
-1000.00...1000. ohm
00
1=Enabled
2=blocked
3=test
4=test/blocked
5=Disabled
Value
Depending on the frequency of the current
measured: f ±2 Hz
n
Current: ±1.5 % of the set value or ±0.002 × I
Voltage: ±1.5% of the set value or ±0.002 × U
Impedance: ±2.0% of the set value or ±0.1 Ω
Phase angle: ±2°
Typically 23 ms
<40 ms
Typically 0.96
±1.0% of the set value or ±20 ms
DFT: -50dB at f = n × f
1MAC504801-IB E
Description
Release signals for PP/3P
loops, GFC
Phase pickup signals packed,
GFC
Real part of the PP/3P-loop
impedance, zone Z1
Imaginary part of the PP/3P-
loop impedance, zone Z1
Status
n
n
, where n = 2, 3, 4, 5,...
n
620 series ANSI
Technical Manual