• The operation and reset time accuracy does not apply when the measured secondary
current in I02 is 1…20 mA. The pick-up is tuned to be more sensitive and the operation times
vary because of this.
9.2.1.3 Directional overcurrent protection (Idir>; 67)
Table. 9.2.1.3 - 271. Technical data for the directional overcurrent function.
Input signals
Current inputs
Phase current inputs: I
L1
(A), I
L2
(B), I
L3
(C)
Current input magnitudes
RMS phase currents
TRMS phase currents
Peak-to-peak phase currents
Current input calculations
Positive sequence current angle
Voltage inputs
U
L1
, U
L2
, U
L3
U
L12
, U
L23
, U
L31
+ U0
Voltage input calculations
Positive sequence voltage angle
Pick-up
Characteristic direction
Directional, non-directional
Operating sector center
-180.0…180.0 deg, setting step 0.1 deg
Operating sector size (+/-)
1.00…170.00 deg, setting step 0.10 deg
Pick-up current setting
0.10…40.00 × I
n
, setting step 0.01 × I
n
Inaccuracy:
- Current
- U1/I1 angle (U > 15 V)
- U1/I1 angle (U = 1…15 V)
±0.5 %I
set
or ±15 mA (0.10…4.0 × I
set
)
±0.20°
±1.5°
Operation time
Definite time function operating time setting
0.00…1800.00 s, setting step 0.005 s
Inaccuracy:
- Definite time: I
m
/I
set
ratio > 3
- Definite time: I
m
/I
set
ratio = 1.05…3
±1.0 % or ±20 ms
±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):
- I
m
/I
set
ratio > 3
- I
m
/I
set
ratio = 1.05…3
<40 ms (typically 30 ms)
<50 ms
Reset
Reset ratio:
- Current
- U1/I1 angle
97 % of the pick-up current setting
2.0°
Reset time setting
Inaccuracy: Reset time
0.010…10.000 s, step 0.005 s
±1.0 % or ±50 ms
Instant reset time and start-up reset
<50 ms
No
Notte!
e!
A
AQ
Q-T215
-T215
Instruction manual
Version: 2.04
391
Содержание AQ-T215
Страница 1: ...AQ T215 Transformer protection IED Instruction manual...
Страница 266: ...Figure 5 4 4 167 Connecting mA input to option card A AQ Q T215 T215 Instruction manual Version 2 04 265...
Страница 358: ...Figure 7 3 216 Example block scheme A AQ Q T215 T215 Instruction manual Version 2 04 357...
Страница 380: ...Figure 8 14 239 Panel cutout dimensions and device spacing A AQ Q T215 T215 Instruction manual Version 2 04 379...
Страница 409: ...10 Ordering information A AQ Q T215 T215 Instruction manual Version 2 04 408...