Circutor EMK Series, Инструкция по эксплуатации, Страница: 7 / 20

EMK series
Instructions Manual M98118701-03-19A 7
4.2 Electrical features
- Operating voltage and nominal frequency: U
n
/ f , listed on the label
- Design voltage: U
n
+ 10% (440 V for 400 V equipment)
- Nominal power and distribution of steps: Q
n
and composition, (see label)
- Total loss: Typical 1 W/kvar
- Residual discharge voltage: 75 V after 3 minutes
- Overload capacity: 1.3 I
n
in all items
- Auxiliary voltage: U
aux
, listed on the label.
NOTE: In general, use a 1.5 mm 2 cable to supply external power.
If
“Internal”
, is marked in the label , this circuit does not require external power.
-
Current Transformer: Secondary Winding 5 A ,
(Transformer
I
n
/5 A)
NOTE: Minimum cable section 2.5 mm 2 .
- Compliance with Standards UNE EN 61921 and EN-61642
- Protection elements:

NH Fuses
, gL curve, minimum calibre 1.5
I
n
)
- Capacitor features:

Capacity tolerance: ± 10%

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
4.3 Environmental Features
- Capacitor max. temperature Category C in accordance with EN 60831-1

Maximum for 1h 50ºC

24h average 40ºC

Annual average 30ºC
- Cabinet ventilation For outdoor t
amb
> 30ºC, forced ventilation
must be used for the cabinet
- Maximum relative humidity: 80%
-
Altitude: 1000 m
(For higher altitudes, use always
forced ventilation)
4.4 Mechanical features
- Protection degree: Marked on the label:
- Paint Oven dried epoxy type
- Standard colours RAL 7035 Grey ; RAL 3005 Wine Red
4.5 External dimensions and weights.
Model
Dimensions (mm)
Max.
weight
(kg)
Width Height
(*)
Depth
EMK4 880 1805 575 172
EMK6 1180 1805 575 186
EMK8 1530 1805 575 200
EMK12 2360 1805 575 371
(*)
Maximum dimensions