Technical Revision History - ABB RELION 611 Series Technical Manual

Section 4
Protection functions
4.1.1.12
106
Characteristic
Operate time accuracy in definite time mode
Operate time accuracy in inverse time mode
Suppression of harmonics
Measurement mode = default (depends on stage), current before fault = 0.0 × I
1)
in one phase with nominal frequency injected from random phase angle, results based on statistical
distribution of 1000 measurements
2) Includes the delay of the signal output contact
Start value = 2.5 × I
3) Maximum

Technical revision history

Table 91: PHIPTOC Technical revision history
Technical revision
B
C
D
E
Table 92: PHHPTOC Technical revision history
Technical revision
C
D
E
F
Table 93: PHLPTOC Technical revision history
Technical revision
B
C
D
E
Value
±1.0% of the set value or ±20 ms
±5.0% of the theoretical value or ±20 ms
RMS: No suppression
DFT: -50 dB at f = n × f
Peak-to-Peak: No suppression
P-to-P+backup: No suppression
Start value multiples in range of 1.5...20
,
n
Change
Minimum and default values changed to 40 ms for
the Operate delay time setting
Minimum and default values changed to 20 ms for
the Operate delay time setting
Minimum value changed to 1.00 x I
value setting
Internal improvement
Internal improvement
Change
Measurement mode "P-to-P + backup" replaced
with "Peak-to-Peak"
Step value changed from 0.05 to 0.01 for the
multiplier setting
Internal improvement
Internal improvement
Change
Minimum and default values changed to 40 ms for
Operate delay time setting
the
Step value changed from 0.05 to 0.01 for the
multiplier setting
Internal improvement
Internal improvement
1MRS757454 D
3)
, where n = 2, 3, 4, 5,...
n
, f = 50 Hz, fault current
n n
Start
for the
n
Time
Time
611 series
Technical Manual