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RFD TEHNICAL DESCRIPTION.doc
KON-215-60-33.2-v.1.0-E
- Pickup current accuracy
5% pickup value. ± 2%
current tolerance, 30 ms
- Time accuracy
2% pickup value or 0.01 In
Secondary earthfault protection with definite time characteristic (ANSI No. 50N-B)
- Measurement input
IEB
- Function activation
Func.
OFF
IE>
IE>, IE>>
IE>, IE>>, IE>>>
- First/second/third stage
- Pickup value
IE>, IE>>, IE>>>
0.01
– 10.00 In
step: 0.01 In
- Pickup time characteristic
Definite time
tE>, tE>>, tE>>>
0.00
– 300.00 s
step: 0.01 s
- Allowed dropdown time
t-drop
0.00
– 60.00 s
step: 0.01 s
- Start time
< 35 ms
- Release time
< 35 ms
- Pickup/release ratio
0.95 (Ip/In ≥ 0,5)
- Time accuracy
2% pickup value or 10 ms
- Pickup current accuracy
2% pickup value or 0.01 In
Secondary earthfault protection with inverse time characteristic (ANSI No. 51N-B)
- Measurement input
IEB
- Function activation
Func.
OFF
ON
- Pickup value
IE>
0.01
– 5.00 In
step: 0.01 In
- Pickup time characteristic
IEC-Normal inverse
kE
0.05
– 1.00
step: 0.01
IEC-Very inverse
IEC-Extremely inverse
IEC-Long inverse
ANSI-Inverse
TDE
0.50
– 15.00
step: 0.01
ANSI-Short inverse
ANSI-Long inverse
ANSI-Moderately inverse
ANSI-Very inverse
ANSI-Extremely inverse
ANSI-Definite inverse
- Drop-out characteristic
Drop-out
instant.
- Working area
1.10 Ip
- Pickup/release ratio
1.05 (Ip/In ≥ 0,5)
- Pickup current accuracy
5% pickup value. ± 2%
current tolerance, 30 ms
- Time accuracy
2% pickup value or 0.01 In
