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High Current Battery Chargers

High-Current Battery Chargers

PCTI offers rugged high-current battery chargers to meet all of your high-current industrial charging applications from 25 to 2000A and up to 1000V. Our standard battery charger includes a battery eliminator, float and equalize adjustments, manual equalize timer, automatic shutdown and restart under a variety of fault conditions, low ripple, and paralleling capability. Options include computer interface, discharge capability, DC circuit breaker, temperature compensation circuit and more.

PCTI high current battery chargers and systems are at work today in a variety of industrial, commercial, and military applications. Each unit is based on standard designs and custom engineered to meet your specific application.

PCTI Battery Charger Family

PCTI DC power supplies are built to customer order from a range of standard power and control modules, and offer high performance, high reliability and sophisticated control systems. A variety of computer interfaces are available to meet all of your power supply programming and control requirements. If you need help in specifying your battery charger, click here to find a Battery Charger Application Data Sheet. Click here to view some representative Battery Charger project profiles. Right click here to download our Battery Charger Brochure .

General Specifications

The following specifications outline PCTI's battery charger product line. Please contact PCTI for options not listed here or for assistance regarding your particular application.

Input Voltages ( +10%, 50/60Hz )

Single Phase: 110, 115, 120, 130, 200, 208, 230

Three Phase: 208, 220, 230, 380, 415, 440, 460, 480, 575

Output

Voltage: 48V, 80V, 125V, 250V to 600V and others as requested

Current: 25 to 2000A

Voltage Adjust: + 5% of rated output voltage for any load variation from 0 to 100%

with separate equalize and float voltage settings

Efficiency: 85% minimum

Standard Features

Six-pulse or 12 pulse thyristor bridge rectifier

Constant Current Control

Constant Voltage Control

Automatic Crossover

Regulated Voltage

Regulated Current

Automatic Phase Selection

Soft Start with batteries disconnected

Automatic Restart to Float Mode after loss and restoration of AC input power

Manual selection of float or equalize charge mode

Float Voltage Control per NEMA PE-5 depending on battery type

Equalize Voltage Control per NEMA PE-5 depending on battery type

Battery Charger can act as a DC power supply with batteries disconnected

Standard Protection

AC input circuit breaker

AC and DC surge protection up to 5000 volts.

Automatic Equalize Control automatically places charger in float mode after an AC power failure or charger shutdown

Overcurrent/Overload: 120% for 2 hours

Overvoltage

Overtemperature

Input and Output MOVs

Front Panel Devices

Float Level Control Potentiometer

Equalize Level Control Potentiometer

Equalizing Timer 0 to 24 hours operable in the manual equalize mode

On/Off Switch

Float/Equalize Selector Switch

AC power ON Indicator

Analog or Digital Voltmeter

Analog or Digital Ammeter

Float Charge Selected Indicator

Equalize Charge Selected Indicator

Rectifier Failure Alarm Indicator

Input AC Failure Alarm Indicator

DC Undervoltage Alarm Indicator

DC Overvoltage Alarm Indicator

Note: Alarms can provide front panel indication, remote indication, audible alarm and/or shutdown of the battery charger

depending on customer requirements.

Computer Interface/Remote Capability

Analog Signals: 4-20mA, 0-5V, 0-10V F

Computer Interface: IEEE 488.2, RS232, RS485, GPIB

Functions: Start/Stop, Reset, Fault, Inhibit, Current Adjust, Voltage Adjust, Fault Indication (UV, OV, OC, other),

Input AC Failure Alarm Indicator

Environmental/Mechanical

Enclosure Type: Nema 1 indoor, Nema 12 dust resistant, Nema 3R outdoor or Nema 4 Airtight (with air to air heat

exchanger)

Cooling: Forced Air Cooling or Natural Convection

Altitude: To 10,000 ft without derating

Temperature: Operating: 0 to 50°C; Storage: -40°C to 65°C

Humidity: Up to 90% non-condensing

Standard Conformance

IEC, NEMA, NEC, IEEE

MIL-SPEC

Optional Features

Ø DC Output Circuit Breaker

Ø Battery Eliminator

Ø Very low ripple

Ø Optional alarm conditions: Output circuit breaker off, Over temperature, Ground Fault Failure

Ø Audible alarm horn

Ø Remote/local selector switch

Ø Remote Control via analog signal or Computer Interface (RS232, IEEE488, GPIB)

Ø Equalize Timer 0 to 24 hours

Ø Blocking Diode to block feed-back through the charger during AC power failure, being remotely turned off, charger

internal failure, or other shutdown conditions

Ø Output diode for reverse polarity protection

Ø Battery Temperature Compensation

Ø Parallel and Load Sharing

Ø Delayed Start (charge during off-peak hours)

Ø Ground Fault Protection and/or detection

Ø Battery discharge back to the power line

Ø Computer Interface/Remote Capability: Analog Signals: 4-20mA, 0-5V, 0-10V or IEEE 488.2, RS232, RS485, GPIB