Bidirectional inverters BFI2z

 

 

 

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About product

Bidirectional inverter BFI2z is a power electronic device that operates on the base of high-frequency IGBT transistors. The control algorithms were implemented on a modern DSP microprocessor controller. Bi-directional inverters of the BFI2z type are energy converters dedicated to energy storage systems.

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Bidirectional inverter BFI2z basic characteristics:

  • Mains AC energy convertion into DC voltage of energy storage
  • Fully controlled process of battery charge and discharge according to the battery producer recommendations
  • Cooperation with battery management system (BMS)
  • Cooperation with energy management system (EMS)
  • Operation in both operational modes: on-grid and off-grid

Features

Galvanic insulation of AC circuits from DC circuits
Signaling of operating states: charging, discharging, system start, system stop, off-grid operation
Battery status indication: charging, discharging
Signaling of alarm states: alarm, warning, overload
Protection against excessive discharge of the electrochemical battery
Remote signaling of an alarm – potential-free relay contacts
Communication with the system EMS: MODBUS RTU, MODBUS TCP (option)

Technical Specifications

INPUT
Power supply voltage, VDC

340/380/400/570/650/700

OUTPUT
Output voltage, VAC

3-phase, 380/400/415

Static voltage stability, %

±1

Voltage shape

Sinusoidal

Voltage distortion THDU (linear load), %

<2

Voltage distortion THDU (nonlinear load),%

<5

Current distortion THDI, %

<5

Frequency of output voltage, Hz

50/60

Frequency stability, %

±0,1

Overload capacity (in case of resistive load)

110% long term, 125% – 10 min, 150% – 1 min, >150% – 1 s

Short-circuit current

3 x In

Cos φ range

Cos φ ≤ 1 (0 cap. … 0 ind.)

Inverter efficient, %

>94

Electromagnetic compatibility

EN 62040-2

ENVIRONMENT
Operation temperature, ˚C

0 … +40

Humidity, %

up to 85 (without condensation)

Device access

Service and maintenance from the front

Cable entry

From the bottom

Operation height above sea level without the ratings change

1000 m

ADDITIONAL INFORMATION
Languages

PL | EN | RUS | CZ

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