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No
Notte!
e!
• While the U0 direction is 180º, the 3I0 current injected to the +90º angle is considered to
be of a negative sine value (inductive).
9.2.1.5 Negative sequence overcurrent/ phase current reversal/ current unbalance
protection (I2>; 46/46R/46L)
Table. 9.2.1.5 - 308. Technical data for the current unbalance function.
Measurement inputs
Current inputs
Phase current inputs: I
L1
(A), I
L2
(B), I
L3
(C)
Current input calculations
Positive sequence current (I1)
Negative sequence current (I2)
Pick-up
Used magnitude
Negative sequence component I2pu
Relative unbalance I2/I1
Pick-up setting
0.01…40.00 × I
n
, setting step 0.01 × I
n
(I2pu)
1.00…200.00 %, setting step 0.01 % (I2/I1)
Minimum phase current (at least one phase above)
0.01…2.00 × I
n
, setting step 0.01 × I
n
Inaccuracy:
- Starting I2pu
- Starting I2/I1
±1.0 %-unit or ±100 mA (0.10…4.0 × I
n
)
±1.0 %-unit or ±100 mA (0.10…4.0 × I
n
)
Operating 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 > 1.05)
±1.5 % or ±60 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
±2.0 % or ±30 ms
±20 ms
Retardation time (overshoot)
<5 ms
Instant operation time
Start time and instant operation time (trip):
- I
m
/I
set
ratio > 1.05
<70 ms
Reset
Reset ratio
97 % of the pick-up setting
Reset time setting
Inaccuracy: Reset time
0.010…10.000 s, step 0.005 s
±1.5 % or ±60 ms
Instant reset time and start-up reset
<55 ms
9.2.1.6 Harmonic overcurrent protection (Ih>; 50H/51H/68H)
Table. 9.2.1.6 - 309. Technical data for the harmonic overcurrent function.
Measurement inputs
A
AQ
Q-F213
-F213
Instruction manual
Version: 2.04
434
Содержание AQ-F213
Страница 1: ...AQ F213 Feeder protection IED Instruction manual ...
Страница 399: ...Figure 7 4 239 Example block scheme A AQ Q F213 F213 Instruction manual Version 2 04 398 ...
Страница 421: ...Figure 8 14 262 Panel cutout dimensions and device spacing A AQ Q F213 F213 Instruction manual Version 2 04 420 ...