9.2.2.4 Total harmonic distortion
Table. 9.2.2.4 - 179. 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 %
9.2.2.5 Fault locator (21FL)
Table. 9.2.2.5 - 180. 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
Inaccuracy:
- Reactance
±5.0 % (typically)
Operation (Triggering)
Activation
From the trip signal of any protection stage
Minimum operation time
At least 0.040 s of stage operation time required
A
AQ
Q-S215
-S215
Instruction manual
Version: 2.04
282
Summary of Contents for AQ-S215
Page 1: ...AQ S215 Bay control IED Instruction manual...
Page 249: ...Figure 7 4 151 Example block scheme A AQ Q S215 S215 Instruction manual Version 2 04 248...
Page 269: ...Figure 8 13 172 Device installation A AQ Q S215 S215 Instruction manual Version 2 04 268...
Page 287: ...10 Ordering information A AQ Q S215 S215 Instruction manual Version 2 04 286...
