ABB RELION Series, Technical Manual

Page: 283 / 804

4.2.1.11 Technical data
Table 314: (F)EFxPTOC Technical data
Characteristic Value
Operation accuracy Depending on the frequency of the measured
current: f
n
±2 Hz
(F)EFLPTOC
±1.5% of the set value or ±0.002 × I
n
EFHPTOC
and
EFIPTOC
±1.5% of set value or ±0.002 × I
n
(at currents in the range of 0.1…10 × I
n
)
±5.0% of the set value
(at currents in the range of 10…40 × I
n
)
Start time
1)2)
Minimum Typical Maximum
EFIPTOC:
I
Fault
= 2 × set
Start
value
I
Fault
= 10 × set
Start
value
16 ms
11 ms
19 ms
12 ms
23 ms
14 ms
EFHPTOC and
(F)EFLPTOC:
I
Fault
= 2 × set
Start
value
23 ms 26 ms 29 ms
Reset time Typically 40 ms
Reset ratio Typically 0.96
Retardation time <30 ms
Operate time accuracy in definite time mode ±1.0% of the set value or ±20 ms
Operate time accuracy in inverse time mode
±5.0% of the theoretical value or ±20 ms
3)
±5.0% of the theoretical value or ±40 ms
3)4)
Suppression of harmonics RMS: No suppression
DFT: -50 dB at f = n × f
n
, where n = 2, 3, 4, 5,…
Peak-to-Peak: No suppression
1) Measurement mode = default (depends on stage), current before fault = 0.0 × I
n
, f
n
= 50 Hz, earth-fault
current 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
3) Maximum
Start value = 2.5 × I
n
,
Start value multiples in range of 1.5...20
4) Valid for FEFLPTOC
1MRS758755 A
Section 4
Protection functions
REC615 and RER615 277
Technical Manual