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

Section 4
Protection functions
Parameter Values (Range)
Curve Sat Relative 0.0...3.0
Voltage selection 1=phase-to-earth
2=phase-to-phase
Relative hysteresis 1.0...5.0
4.2.1.9
4.2.1.10
274
Unit Step
0.1
% 0.1

Monitored data

Table 221: 59 Monitored data
Name Type
PICKUP_DUR FLOAT32
59 Enum

Technical data

Table 222: 59 Technical data
Characteristic
Operation accuracy
1)2)
Pickup time
V
value
Reset time
Reset ratio
Retardation time
Operate time accuracy in definite time mode
Operate time accuracy in inverse time mode
Suppression of harmonics
Pickup value = 1.0 × V
1) , Voltage before fault = 0.9 × V
n
nominal frequency injected from random phase angle, results based on statistical distribution of 1000
measurements
2) Includes the delay of the signal output contact
Pickup value = 1.20 × V
3) Maximum
Default
2.0
2=phase-to-phase
4.0
Values (Range)
0.00...100.00
1=Enabled
2=blocked
3=test
4=test/blocked
5=Disabled
Value
Depending on the frequency of the measured
voltage: f
±1.5% of the set value or ±0.002 × V
Minimum
Pickup
= 1.1 × set 23 ms
Fault
<40 ms
Depends on the set
<35 ms
±1.0% of the set value or ±20 ms
±5.0% of the theoretical value or ±20 ms
DFT: -50 dB at f = n × f
, f
n n
Pickup value multiples in range of 1.10...2.00
,
n
1MAC504801-IB E
Description
Tuning parameter to avoid curve
discontinuities
Parameter to select phase or phase-to-phase
voltages
Relative hysteresis for operation
Unit Description
% Ratio of pickup time / trip time
Status
±2 Hz
n
Typical
27 ms
Relative hysteresis
, where n = 2, 3, 4, 5,...
n
= 60 Hz, overvoltage in one phase-to-phase with
n
Maximum
30 ms
3)
620 series ANSI
Technical Manual