AFE

AFE unità rigenerativa inverter

Bidirectional Converters AFE for Sale: Catalogue

AFE Bidirectional Converters

The need for regenerative IGBT power supplies has resulted in the development of F3E and AFE bidirectional converters, products with rectifying capabilities recovery and network recovery capacity.
AFE bidirectional converter is an Active Front-End regenerative unit - identified by the AFE code.
It's a regenerative power module where the converter uses the IGBT to regulate the DC-bus voltage in every working condition of the load.

Generally the AFE converteris used when a low harmonic content of the system is required. The power supply systems with AFE units, combined with LCL network filters, allow the THD of current and voltage to be kept below the levels required by the most strict regulations.
SECOM AFE regenerative module, however, maintains the same modularity advantages as the F3E and low voltage Inverter modules, in fact it is possible to connect up to 8 modules in parallel.
This type of drives is often used for applications in the heavy industry sectorwhere the production process involves frequent braking (braking power is quite high), and in special applications where the load often becomes the source of power, as in the presence of batteries, supercapacitors, large magnets or whatever.

SECOM has realized a series of AFE converters in the 100kW-4MW power range at 400 and 690Vac.

Technical data
Electrical data
AC line input voltage (Vin) 380V ÷ 480V (± 10%)
500V ÷ 690V (± 10%)
AC line output voltage (Vout) - first harmonic 0 ÷ Vdcp / √2
0 ÷ Vdcp*0.86
DC voltage trip treshold (Vdctrip) 820V per SDx.x.x.x.400
1200V for SDx.x.x.x.690
Input frequency range 45 ÷ 65Hz
Output frequency rangeFor motor application: 0 ÷ 500 Hz (@5kHz of switching frequency)
Interface DPM power supply 24Vdc @ 1A without analog supply
STO N.2 channels 24Vdc - 20mA for each channel
Fan power supply 400V; 3AC - 50/60HZ
Ambient condition
Altitude Up to 2000m a.s.l. without derating (>2000m with derating)
Room temperature 0°C ÷ 40°C without derating (40°C ÷ 60°C with derating)
Pollution degree 2
Relative humidity Max 95% in normal conditions
Safety functions
STO SIL 3 PL e - Category 3
Mechanical data
Vibration stress EN 60721-3-3 Class 3M1 compliant; EN 60068-2-6
Shock EN 60068-2-27 compliant
Cooling systemForced air with internal fan (water cooled on request)
WeightUp to 178kg

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