ABB Relion 620 Series - Page 800

Name Type Values (Range) Unit Description
I_RESO_C FLOAT32 0.00...40.00 xIn Resonance current for
phase C
SRCPTOC Enum
1=on
2=blocked
3=test
4=test/blocked
5=off
Status
4.12.3.9 Technical data
Table 765: SRCPTOC Technical data
Characteristic Value
Operation accuracy Depending on the frequency of the measured current: f
n
±2 Hz
Operate value accuracy:
±3 % of the set value or ±0.002 × I
n
(for 2nd order Harmonics)
±1.5 % of the set value or ±0.002 × I
n
(for 3rd order < Harmonics < 10th
order)
±6 % of the set value or ±0.004 × I
n
(for Harmonics >= 10th order)
Reset time Typically 45 ms or maximum 50 ms
Retardation time Typically 0.96
Retardation time <35 ms
Operate time accuracy in definite time mode ±1.0 % of the set value or ±20 ms
Suppression of harmonics -50 dB at f = f
n
4.12.3.10 Technical revision history
Table 766: SRCPTOC Technical revision history
Technical revision Change
B Internal Improvement.
Protection functions 1MRS757644 H
800 620 series
Technical Manual