Tabla de contenido
Publicidad
other parameters
Undervoltage
Overvoltage
Voltage imbalance
Reverse power
Overpower
Current imbalance
60Hz UF_Pickup ~ 65Hz
Overfrequency
50Hz UF_Pickup ~ 55Hz
60Hz 55Hz ~ OF_Pickup
Underfrequency
50Hz 45Hz ~ OF_Pickup
4.5 FeAtureS oF operAtIon
long Delay protection (l)
N and A
type units
P and S
Type units
Adjustments
Adjust of range
Incr.
80V ~ 0V_Pickup
UV_Pickup ~ 980V
6% ~ 99%
10 ~ 500kW
1kW
500 ~5000kW
1kW
6% ~ 99%
Protection against overload, with feature of current inverse
time
1. Current Ir
a) Adjustment of Range in N and A type units: (0.4~1.0) xIn
- Iu: (0.5-0.6-0.7-0.8-0.9-1.0)xIn
- Ir: (0.8-0.83-0.85-0.88-0.9-0.93-0.95-0.98-1.0) xIu
b) Adjustment of Range in the P and S type units: (0.4~1.0)
xIn
- Ir: (0.4-0.5-0.6-0.7-0.8-0.9-1.0) xIn
2. Performance time tr
- The performance time is based on current of 6xIr –
Adjustment of Range: (0.5-1-2-4-8-12- 16-20-Off)s
3. Start of timing
- It occurs when the current exceeds 1.15xIr
4. The unit performs as per the greatest current between
the phases R, S, T and the neutral N.
English
precision
1V
±5%
1V
±5%
±2,5% ou
1%
±10%
±10%
±10%
±2,5% ou
1%
±10%
1Hz
±0,1Hz
1Hz
±0,1Hz
1Hz
±0,1Hz
1Hz
±0,1Hz
open Circuit Breaker
time of Adjustment
Adjust of
preci-
Incr.
range
sion
1,2~40s
0,2~40s
0,1s
±0,1s
1,2~40s
ABW | 33
Publicidad
Tabla de contenido
