Inaccuracy
Inaccuracy for current/operations counter:
- Current measurement element
- Operation counter
0.1× I
N
> I < 2 × I
N
±0.2 % of the measured current, rest 0.5 %
±0.5 % of operations deducted
9.2.3.4 Total harmonic distortion
Table. 9.2.3.4 - 332. Technical data for the total harmonic distortion function.
Input signals
Current inputs
Phase current inputs: I
L1
(A), I
L2
(B), I
L3
(C)
Residual current channel I
01
(Coarse)
Residual current channel I
02
(Fine)
Current input magnitudes
Current measurement channels (FFT result) up to the 31
st
harmonic
component.
Pick-up
Operating modes
Power THD
Amplitude THD
Pick-up setting for all comparators
0.10…200.00 % , setting step 0.01 %
Inaccuracy
±3 % of the set pick-up value > 0.5 × I
N
setting; 5 mA < 0.5
× I
N
setting.
Time delay
Definite time function operating time setting for all
timers
0.00…1800.00 s, setting step 0.005 s
Inaccuracy:
- Definite time operating time
- Instant operating time, when I
M
/I
SET
ratio > 3
- Instant operating time, when I
M
/I
SET
ratio 1.05 <
I
M
/I
SET
< 3
±0.5 % or ±10 ms
Typically <20ms
Typically <25 ms
Reset
Reset time
Typically <10 ms
Reset ratio
97 %
9.2.3.5 Fault locator (21FL)
Table. 9.2.3.5 - 333. Technical data for the fault locator function.
Input signals
Current inputs
Phase current inputs: I
L1
(A), I
L2
(B), I
L3
(C)
Voltage inputs
U
L1
, U
L2
, U
L3
U
L12
, U
L23
, U
L31
+ U
0
Calculated reactance magnitudes when line-to-neutral voltages available
XL12, XL23, XL31, XL1, XL2, XL3
Calculated reactance magnitudes when line-to-line voltages available
XL12, XL23, XL31
Pick-up
Trigger current >
0.00…40.00 × I
N
, setting step 0.01 × I
N
Inaccuracy:
- Triggering
±0.5 %I
SET
or ±15 mA (0.10…4.0 × I
SET
)
Reactance
Reactance per kilometer
0.000…5.000 s, setting step 0.001
Ω
/km
A
AQ
Q-F213
-F213
Instruction manual
Version: 2.04
449