Starting I01 (1 A)
Starting I02 (0.2 A)
Voltage U0
±0.5 %I0
SET
or ±3 mA (0.005…10.0 x I
SET
)
±1.5 %I0
SET
or ±1.0 mA (0.005…25.0 x I
SET
)
±1.0 %U0
SET
or ±30 mV
Operation time setting
De nite time function operating time setting
0.00…1800.00 s, setting step 0.005 s
Operation time inaccuracy
De nite Time (Im/Iset ratio 1.05
→
)
±1.0 % or ±30 ms
Instant operation time
Start time and instant operation time (trip):
(Im/Iset ratio 1.05
→
)
<15 ms
Reset time
Reset time setting (FWD and REV)
Inaccuracy: Reset time
0.000 … 1800.000 s, step 0.005 s
±1.0 % or ±35 ms
Instant reset time and start-up reset
<50 ms
9.2.1.6. Current unbalance (46/46R/46L) I2>
Table. 9.2.1.6. - 284. Unbalance (46/46R/46L) technical data
Input signals
Input magnitudes
Phase current fundamental freq RMS
Pick-up
Used magnitude
Negative sequence component I2pu
Relative unbalance I2/I1
Pick-up setting
0.01…40.00 x In, setting step 0.01 x In (I2pu)
1.00…200.00 %, setting step 0.01 % (I2/I1)
Minimum phase current (least 1 phase above)
0.01…2.00 x In, setting step 0.01 x In
Inaccuracy
-Starting I2pu
-Starting I2/I1
±1.0 %-unit or ±100 mA (0.10…4.0 x I
N
)
±1.0 %-unit or ±100 mA (0.10…4.0 x I
N
)
Operating time
De nite time function operating time setting
0.00…1800.00 s, setting step 0.005 s
Inaccuracy
-De nite Time (Im/Iset ratio >1.05)
±1.5 % or ±60 ms
IDMT operating time setting (ANSI / IEC)
0.02…1800.00 s, setting step 0.001 x parameter
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; 20 ms
±1.5 % or ±20 ms
±20 ms
Retardation time (overshoot)
<5 ms
Instant operation time
Start time and instant operation time (trip):
(Im/Iset ratio >1.05)
<70 ms
Reset
Reset ratio
97 % of pick-up setting
AQ-F255
Instruction manual
Version: 2.00
© Arcteq Relays Ltd
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