Koncar konpro, Руководство пользователя

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RFD TEHNICAL DESCRIPTION.doc KON-215-60-33.2-v.1.0-E
High impedance restricted earth-fault protection of transformers
(ANSI 87N, IEC ∆I
0
>, REF)
- Measurement inputs
IEA, IEB
- Function activation Func. OFF
ON
- task interval 5 ms
- Source current input
Source
IEA
IEB
default: IEA
- Pickup value dI
0
> 5
– 50 %
default: 20 %
Overcurrent protection with definite time characteristic (ANSI No. 50)
- Measurement inputs IAA, IBA, ICA
- Function activation Func. OFF
I>
I>, I>>
I>, I>>, I>>>
- First/second/third stage
- Pickup value I>, I>>, I>>> 0.00
– 30.00 In
step: 0.01 In
- Pickup time characteristic
Definite time t>, t>>, t>>> 0.05
– 300.00 s
step: 0.01 s
- Allowed dropdown time t-drop 0.00
– 60.00 s
step: 0.01 s
Cold Load Pickup < 30 ms (at 2Ip)
- CLP first/second/third stage
- Pickup value < 35 ms (at 2Ip)
- Pickup time characteristic
Definite time
0.95 (Ip/In ≥ 0,5)
- Start time 2% pickup value or 10 ms
- Release time 2% pickup value or 0.01 In
- Pickup/release ratio
- Time accuracy
- Pickup current accuracy
Overcurrent protection with inverse time characteristic (ANSI No. 51)
- Measurement inputs IAA, IBA, ICA
- Function activation Func. OFF
ON
- Pickup value I> 0.10
– 5.00 In
step: 0.01 In
- Pickup time characteristic
IEC-Normal inverse k 0.05
– 1.00
step: 0.01
IEC-Very inverse
IEC-Extremely inverse
IEC-Long inverse
ANSI-Inverse TD 0.50
– 15.00
step: 0.01
ANSI-Short inverse
ANSI-Long inverse
ANSI-Moderately inverse
ANSI-Very inverse