Specification Of BECafzar Co. Battery Chargers

 

Mechanical Specification

• Protection : IP 21 (other degrees of protection are options)

• Sheet metal cabinet

• Identification plate outside of charger

• Pant: RAL 7035 light (electro-static powder coated painting)

• Cable entry : bottom (top entry is option)

• Standards wiring numbering

• Component labeling

Electrical Specification

• Nominal mains voltage:

  • single phase :220v±10%

  • three phase :400v±10%

  • exceptional variations :+15-20%

  • frequency 50Hz

• Rectifier output:

  • nominal voltage (Un):24v,48v,110v,220v(on request :12,36,60,125)

  • nominal current (In): up to 1000 A

• Voltage regulation:

  • static:0/5% under following conditions:

    - at float charge

    - dc load variation 0-100%

    - input voltage  ± 10%

  • Dynamic : 5% under following conditions

    - dc load variation 10%-100% and 100% -10%

    - battery connected ( capacity 5 times IN)

• Long term stability of UN

• Load characteristic :

  • constant current / constant voltage (I/U as per IEC 478-1)

• Input /Output isolation:

  • 2000 vac between input/output and electrical earth.

  • insulation resistance :>10M ohm,500 VDC

• Ripple:

  • max 1% rms of Un (battery connected -5 times the charger rating)

• Protection:

  • polarity reversal of battery (blows battery fuse)

  • AC surge limitation

  • soft start function 0-100%

  • Short circuit

  • Current limiter (adjustable 5-110%)

  • internal fuses

  • loss of phase shutdown (three phase systems)

  • phase rotation shutdown ( three phase systems)

  • low/high Ac input voltage shutdown

  • High DC voltage shutdown

Environmental

• Ambient Temperature:

  • operating :0 to +40 degree centigrade ( higher amb. temp. optional)

  • storage :-25 to 70 c

• Relative humidity:

  • operation : from 20% to 80% no condensation

  • storage from 15% to 90% ( in original packaging)

• Acoustic noise: typical 45-65 db (A)

• Altitude: up to 2000m, derate from 2000m to 4000m by lowering the output current by7%per 1000m

Metering & Indicators

• Measurements:

  • output voltage

  • output current

  • input voltage (option)

  • input current (option)

  • Battery current (option)

  • load voltage (option)

• System statues indicators and alarms:

  • signal lamp for float charge mode

  • signal lamp for equalize charge mode,

  • signal lamp for boost charge mode.

  • signal lamp for automatic mode

  • signal lamp for mains on

  • signal lamp for AC fail alarm

  • signal lamp for high DC shutdown

  • signal lamp for low DC alarm

  • signal lamp for current limit alarm/shutdown (option)

  • signal lamp for earth fault alarm (option)

  • remote alarm ( common alarm)

    (in single phase chargers LEDs are assembled instead of signal lamp)

• System controls:

  • Constant voltage /current charging with user selectable modes for float equalize boost charging.

  • current limiter system with adjustable level between 5 to 110% of In for commissioning charge.

  • Automatic mode selection (automatic change over between float and equalize mode according power outage time with adjustable 0-30hr timer)

  • active load sharing circuit.( option-for parallel systems)

  • adjustment of voltage level ( all adjustable -10% to +10% Separately for each mode)

     for lead battery :

    - 2.23 v/cell in float mode

    - 2.33 v/cell in equalize mode

    - 2.45 v/cell in boost mode

    - 2.7 v/cell in initialize mode

    for Nickel-Cadmium battery :

    - 1.35 v/cell in float mode

    - 1.45 v/cell in equalize mode

    - 1.55 v/cell boost mode

    - 1.7 v/cell in initialize mode

  • adjustment of alarm levels

  • alarm silencer switch (alarm acknowledgement)

  • lamp test pushbutton switch (option)

Standard Options:

• Communication with PC via RS232 port (monitoring soft ware available)

• Separate remote alarm contacts for each alarm

• Interior light with door mounted switch.

• Cabinet heater with thermostat.

• Blocking diode for parallel redundancy.

• Diode dropper system

• EMC filtering

• Over temperature alarm/trip ( In case of forced ventilation)

• Charger fail alarm

• Earth fault +/- alarm

• Current limit alarm

• Lamp test switch

• End of discharge contactor

• Input voltage /current measurement

• Battery/load current  measurement

• 12-pulse rectification

• Cabinet with IP31,IP32,IP41,IP42

• Top cable entry

• Timer for boost charge mode

• Battery current limiter

  Other options on request

Double Systems

• Different  configurations for redundant systems are available

  - parallel redundant system

  - hot standby system ( with manual and automatic change over)

  - cold standby system ( manual change over )

Applicable Standards:

- IEC 76 power transformer

- IEC 526 degrees of protection

- IEC 146 semi conductor converters

- IEC 439 low voltage distribution devices

- IEC 255 electrical relays

- IEC 269 low voltage fuses

- IEC 947 switches

- IEC 364 wiring