CIRCUTOR FRE Series - Manual (Page 7)

FRE / FRES
7 / 20
4.2 Electrical characteristics
- Operating voltage and nominal frequency: U
n
/ f , listed on the label
- Design voltage: U
Nn
+ 10% (440 V for 400 V equipment)
- Nominal power and distribution of steps: Q
n
and composition, (see label)
- Overvoltage factor, p% Standard 7% ,
Others 14%, 8.2% and 5.67% (see label )
- Total loss: Standard 3.5 at 4 W/kvar
- Residual discharge voltage: 75 V after 3 minutes
- Overload capacity: 1.3 . I
n
in all items
- Contact operating voltage: U
aux
, listed on the label.
NOTE: In general, use a 1.5 mm2 cable to supply external power.
If the label indicates “ Internal” , means that this the auxiliary circuit does not require external power.
- Current Transformer Input: 5 A , (Transformer I
n
/5 A)
NOTE: Minimum cable section 2.5mm2.
- Compliance with Standards EN-61642 and UNE EN 61921
- Protection elements:
 Fuses Type gL, NH gauge (minimum 1.5 x I
n
)
 Reactor thermostat: 90 ºC ±5 ºC
Insulation 3 kV /50 Hz
Breaking capacity 10 A / 250 V
ac
, resistive load
- Capacitor characteristics:
 Capacity tolerance: ± 5%
 Insulation level from earth: 3 kV /50 Hz
 Impulse test: 15 kV , ray type wave 1.2/50 µs
 Protection elements: Internal fuses and over-pressure system
 Compliance with Standards EN 60831
- Reactor characteristics:
 Inductor tolerance: ± 5%
 Rated voltage standard 500 V (RMS value)
 Saturation current Standard at 1.4 I
n
, L=5% ( Others for RBX )
 Level of insulation phases to earth 3 kV /50 Hz; 15kV shockwave 1.2/50 µs
 Max. overload Σ(n.I
n
) 2 Permanent 20% ; Transient (1 min) 2 I
n
4.3 Environmental Characteristics
- Capacitor max. temperature Category C in accordance with EN 60831-1
 Maximum for 1h 50 ºC
 24h average 40 ºC
 Annual average 30 ºC
- Max. temperature of reactors In accordance with IEC 60076-6
 Maximum environmental temperature 60 ºC
 Indoor temperature at In <110 ºC
 Protection thermostat 90 ºC
 Cabinet ventilation For Tout > 30 ºC, forced ventilation must
be used for the cabinet
- Maximum relative humidity: 80%
- Altitude: 1000 m (For higher altitudes, always
maintain forced ventilation)
4.4 Mechanical characteristics:
- Protection degree: Marked on the label:
- Paint Oven dried epoxy type
- Standard colours RAL 7035 Grey ; RAL 3005 Maroon