• After the low voltage blocking condition, the undervoltage stage does not trip unless the
voltage exceeds the pick-up setting first.
9.2.1.8 Neutral overvoltage protection (U0>; 59N)
Table. 9.2.1.8 - 250. Technical data for the neutral overvoltage.
Measurement inputs
Voltage inputs (selectable)
Residual voltage from U3 voltage channel
Residual voltage calculated from U
L1
, U
L2
, U
L3
Voltage input magnitudes
RMS residual voltage U
0
Calculated RMS residual voltage U
0
Pick-up
Pick-up voltage setting
1.00…50.00 %U0
N
, setting step 0.01 × I
N
Inaccuracy:
- Voltage U0
- Voltage U0Calc
±3.5 %U0
SET
or ±30 mV
±400 mV
Operation time
Definite time function operating time setting
0.00…1800.00 s, setting step 0.005 s
Inaccuracy:
- Definite time (U0
M
/U0
SET
ratio 1.05
→
)
±1.0 % or ±35 ms
IDMT setting parameters:
k Time dial setting for IDMT
A IDMT constant
B IDMT constant
C IDMT constant
0.01…25.00, step 0.01
0…250.0000, step 0.0001
0…5.0000, step 0.0001
0…250.0000, step 0.0001
Inaccuracy:
- IDMT operating time
- IDMT minimum operating time
±1.5 % or ±20 ms
±20 ms
Instant operation time
Start time and instant operation time (trip):
- U0
M
/U0
SET
ratio 1.05
→
<50 ms
Reset
Reset ratio
97 % of the pick-up voltage setting
Reset time setting
Inaccuracy: Reset time
0.000…150.000 s, step 0.005 s
±1.0 % or ±35 ms
Instant reset time and start-up reset
<50 ms
9.2.1.9 Sequence voltage protection (U1/U2>/<; 47/27P/59NP)
Table. 9.2.1.9 - 251. Technical data for the sequence voltage function.
Measurement inputs
Voltage inputs
U
L1
, U
L2
, U
L3
U
L12
, U
L23
, U
L31
(+ U
0
)
Voltage input calculations
Positive sequence voltage (I1)
Negative sequence voltage (I2)
Pick-up
Pick-up setting
5.00…150.00 %U
N
, setting step 0.01 %U
N
Inaccuracy:
- Voltage
±1.5 %U
SET
or ±30 mV
A
AQ
Q-C213
-C213
Instruction manual
Version: 2.04
345
Содержание AQ-C213
Страница 1: ...AQ C213 Capacitor bank protection IED Instruction manual ...
Страница 308: ...Figure 7 4 184 Example block scheme A AQ Q C213 C213 Instruction manual Version 2 04 307 ...
Страница 330: ...Figure 8 14 207 Panel cutout dimensions and device spacing A AQ Q C213 C213 Instruction manual Version 2 04 329 ...