13
13
SIF5600 - Manual - 03 - 2008
Second threshold 50/51 definite time (
I
>>
indep
)
0.100...20.00
I
n
0.100...0.999
I
n
(step 0.001
I
n
)
1.00...9.99
I
n
(step 0.01
I
n
)
10.0...20.0
I
n
(step 0.1
I
n
)
Definite time operate time (
t
>>
indep
)
[1]
0.03...10.0 s (step 0.01 s)
Pickup times
0.05 s for the
I
> element
0.03 s for the
I
>> element
Dropout ratio
0.95...0.98
Dropout times
0.03 s for the
I
> element
0.03 s for the
I
>> element
Overshoot time
0.02 s
reference values
rest: 0
pickup: 1.5
I>, 1.5
I
>>
Pickups accuracy
± 5%
Operate times accuracy
± 3% ± 20 ms
Residual overcurrent (50N-51N)
First threshold 50N/51N definite time (
I
e
>
indep
)
0.002...0.500
I
en
(step 0.001
I
en
)
Definite time operate time
t
e
>
0.05...180 s
0.05...9.99 s (step 0.01 s)
10.0...99.9 s (step 0.1 s)
100...180 s (step 1 s)
First threshold 50N/51N inverse time (
I
e
>
dep
)
0.002...0.050
I
en
(step 0.001
I
en
)
Inverse time operate time (
t
e
>
dep
)
[2]
0.10...60.0 s
0.10...9.99 s (step 0.01 s)
10.0...60.0 s s (step 0.1 s)
Second threshold 50N/51N definite time (
I
e
>>
indep
)
0.002...0.500
I
en
(step 0.001
I
en
)
Operate time (
t
e
>>
indep
)
[3]
0.03...10.0 s (step 0.01 s)
Pickup
I
e
>> (definite-time characteristic)
0.002...0.500
I
en
step 0.001
I
en
Pickup times
0.05 s 0.05 s for the
I
e
> pickup,
0.03 s for the
I
e
>> pickup
Dropout ratio
0.95...0.98
Dropout times
0.03 s for the
I
e
> pickup,
0.03 s for the
I
e
>> pickup
Overshoot time
0.02 s
reference values
rest: 0
pickup: 1.5
I
e
>, 1.5
I
e
>>
Pickups accuracy
±5%
Operate times accuracy
±3% ± 20 ms
Blocking function
enable
t
F
(
t
F
Enable
)
On/Off
Drop-out time delay of the blocking output signal
t
F
0.00...10.00 s (step 0.01 s)
enable
t
B
(
t
B
Enable
)
On/Off
Dropout time delay of the blocking input signal
t
B
0.10...10.00 s (step 0.01 s)
control window for tX pulses (
Pulse Blout
)
0.05-0,1-1-10-30 s
control window for rX pulses (
Pulse Blin
)
0.05-0,1-1-10-30 s
Circuit breaker (52)
Minimum action time of the cB commands
t
VAL
0.20 s
Note 0.05...0.0 s if the IE>> pickup is associated with the input block circuit
Note IEC55-3 type A moderately inverse-time characteristic: t = 0.4 · t
e
>
dep
/ [(I
e
/I
e
>
dep
)
0.0
- ] with .0 fw release and followings
IEC55-3 type B very inverse-time characteristic:
t = 3.5 · t
e
>
dep
/ [(I
e
/I
e
>
dep
) - ] with .0 fw release and followings
IEC55-3 type C extremely inverse-time characteristic: t = 80 · t
e
>
dep
/ [(I
e
/I
e
>
dep
)
- ] with .0 fw release and followings
With previous 2.00 fw release (normalization at fourfold threshold), the “SIF5600-Manual-10-2006” reference document must be used
t
:
operate time
t
e
>
dep
:
operate time setting
I
e
>
dep
:
threshold setting
Asymptotic reference value:
1.1
I
e
>
dep
Minimum operate time
0.05 s
Range: . ≤ I
e
/I
e
>
dep
≤ 0
Upper limit:
1.0
I
e
n
Note 3 0.05...0.0 s if the
I>> pickup is associated with the input block circuit.