DC Battery Charger

Battery Charger is thyristor controlled, fully digital, static AC/DC rectifier with constant voltage / constant current characteristic. Galvanic isolation is provided with input transformer. Battery Charger is Scada ready through free contacts and communication features (Modbus protocol; RS-485 or TCP/IP port).

ASTOR Battery Chargers are widely used in different industries such as Power Generation, Power Distribution, Power Transmission, Manufacturing, Transportation, Mining, Oil & Gas with different applications such as Alarm, Control, Signal and Supply of DC Breakers in Power Plants, Substations, Switchgears, Railways and Offshore Plants.

GENERAL
Model	RDA / RDAT series
Topology	Full Bridge Phase Angle Controlled Thyristor Module Rectifier
Control	Microprocessor Controlled System

GENERAL

Model

RDA / RDAT series

Topology

Full Bridge Phase Angle Controlled Thyristor Module Rectifier

Control

Microprocessor Controlled System

INPUT
Input Isolation Transformer	Galvanically isolated / Primary & Secondary Earth Screened
Nominal Voltage and Tolerance	110/127/190/200/220/230/240/380/400/415/480 VAC ±15% (1 Phase or 3 Phase)
Nominal Frequency	50 Hz / 60Hz ±5%
Cosφ	≥ 0.8 Inductive (6 Pulse) ≥ 0.85 Inductive (12 Pulse) ≥ 0.95 Inductive (12 Pulse with active harmonic elimination)
Total harmonic Distortion (THDi)	≤ 30% (6 Pulse), ≤ 10% (12 Pulse), ≤ 5% (12 Pulse with active harmonic elimination)
Input Protection	Input: Thermic-Magnetic Over Current Protection, Over Voltage Protection, Phase Sequence Free Operation (3 Phase), Soft Start, MCB

INPUT

Input Isolation Transformer

Galvanically isolated / Primary & Secondary Earth Screened

Nominal Voltage and Tolerance

110/127/190/200/220/230/240/380/400/415/480 VAC ±15% (1 Phase or 3 Phase)

Nominal Frequency

50 Hz / 60Hz ±5%

Cosφ

≥ 0.8 Inductive (6 Pulse) ≥ 0.85 Inductive (12 Pulse) ≥ 0.95 Inductive (12 Pulse with active harmonic elimination)

Total harmonic Distortion (THDi)

≤ 30% (6 Pulse), ≤ 10% (12 Pulse), ≤ 5% (12 Pulse with active harmonic elimination)

Input Protection

Input: Thermic-Magnetic Over Current Protection, Over Voltage Protection, Phase Sequence Free Operation (3 Phase), Soft Start, MCB

OUTPUT
Battery Charging Principle	Constant Current/ Constant Voltage
Rated Power	Depends on DC voltage and Current
Nominal Output Voltage	12 / 24 / 48 / 110 / 125 / 220 / 264 / 360 / 450 / 900VDC
Output Current Adjustment	0-100% of Nominal Output Current
Static Tolerance	±1% (Lower values available upon request)
Output Voltage Ripple RMS	≤ 1% RMS AC of Output Voltage
Boost voltage (V/C)	2,4 lead acid battery 1,60 NiCd Battery (Depends on battery manufacturer recommendation)
Float voltage (V/C)	2,23 lead acid battery 1,40 NiCd battery (Depends on battery manufacturer recommendation)
Dynamic Response Time and Voltage Variation	<50msec, <+/-5% (for 10% – 100%, 100% – 10% step load change)

OUTPUT

Battery Charging Principle

Constant Current/ Constant Voltage

Rated Power

Depends on DC voltage and Current

Nominal Output Voltage

12 / 24 / 48 / 110 / 125 / 220 / 264 / 360 / 450 / 900VDC

Output Current Adjustment

0-100% of Nominal Output Current

Static Tolerance

±1% (Lower values available upon request)

Output Voltage Ripple RMS

≤ 1% RMS AC of Output Voltage

Boost voltage (V/C)

2,4 lead acid battery 1,60 NiCd Battery (Depends on battery manufacturer recommendation)

Float voltage (V/C)

2,23 lead acid battery 1,40 NiCd battery (Depends on battery manufacturer recommendation)

Dynamic Response Time and Voltage Variation

<50msec, <+/-5% (for 10% – 100%, 100% – 10% step load change)

CONTROL ELEMENTS
Battery Test	Automatic or manual selectable. Please refer to user manual for details
Boost Timer	0 – 99,9 hours adjustable by 1 minute accuracy
Current Limitation	Total output current and battery current can be adjusted separately

CONTROL ELEMENTS

Battery Test

Automatic or manual selectable. Please refer to user manual for details

Boost Timer

0 – 99,9 hours adjustable by 1 minute accuracy

Current Limitation

Total output current and battery current can be adjusted separately

ALARM CONTACTS
Open or closed free alarm contacts	“Low Battery, Mains Input Normal / Failure, Charger Failure, Overtemperature, Charger Overvoltage, Load MCB ON/ OFF, Battery MCB ON / OFF, Earth Fault”

ALARM CONTACTS

Open or closed free alarm contacts

“Low Battery, Mains Input Normal / Failure, Charger Failure, Overtemperature, Charger Overvoltage, Load MCB ON/ OFF, Battery MCB ON / OFF, Earth Fault”

DISPLAY PANEL & MEASUREMENT
Measurements	LCD Display for Line Voltage / Frequency / Current (Standard in 1 Phase, Optional for 3 Phase), Battery Output Voltage / Current, Load Output Voltage, Charger Total Output Current
Indicators	Float Mode, Boost Mode, Current Mode, Equalize Mode, Battery Ending, Low Battery, Battery Test Failure, Line Failure, Fan Failure, Over Voltage, Under Voltage, Over Temperature, Rectifier Failure, SCR Fuse Failure, Mains Available, Load MCB, Battery MCB
Adjustable Parameters	Float Charge Voltage, Boost Charge Voltage, Equalize Charge Voltage, Battery Charge Current, Rectifier Total Output Current, Low Battery Voltage Alarm, Earth Fault Leakage Current Alarm (only available in 4 line LCD), Battery Ending Voltage Alarm, Online Battery Test Parameters, Auto Boost Charge Parameters, Password
Event History	Last 250 events recorded and displayed on front panel and on PC via remote communication
Sound Alarm	On Warning Messages 2 Short ‘beep’ per 2 seconds

DISPLAY PANEL & MEASUREMENT

Measurements

LCD Display for Line Voltage / Frequency / Current (Standard in 1 Phase, Optional for 3 Phase), Battery Output Voltage / Current, Load Output Voltage, Charger Total Output Current

Indicators

Float Mode, Boost Mode, Current Mode, Equalize Mode, Battery Ending, Low Battery, Battery Test Failure, Line Failure, Fan Failure, Over Voltage, Under Voltage, Over Temperature, Rectifier Failure, SCR Fuse Failure, Mains Available, Load MCB, Battery MCB

Adjustable Parameters

Float Charge Voltage, Boost Charge Voltage, Equalize Charge Voltage, Battery Charge Current, Rectifier Total Output Current, Low Battery Voltage Alarm, Earth Fault Leakage Current Alarm (only available in 4 line LCD), Battery Ending Voltage Alarm, Online Battery Test Parameters, Auto Boost Charge Parameters, Password

Event History

Last 250 events recorded and displayed on front panel and on PC via remote communication

Sound Alarm

On Warning Messages 2 Short ‘beep’ per 2 seconds

COMMUNICATION AND PARALLELING
Communication (OPTIONAL)	RS 485 / RS 232 / Ethernet Ports, Remote PC Control, Modbus, Profibus, SNMP, DNP 3.0 Protocols and TCP/IP options
Paralleling (OPTIONAL)	Redundant Operation of Dual Chargers with Forced (Active) Load Sharing Option

COMMUNICATION AND PARALLELING

Communication (OPTIONAL)

RS 485 / RS 232 / Ethernet Ports, Remote PC Control, Modbus, Profibus, SNMP, DNP 3.0 Protocols and TCP/IP options

Paralleling (OPTIONAL)

Redundant Operation of Dual Chargers with Forced (Active) Load Sharing Option

LVD
LVD (OPTIONAL)	Protection of Battery from Deep Discharge via Contactor. Available on request

LVD

LVD (OPTIONAL)

Protection of Battery from Deep Discharge via Contactor. Available on request

DROPPER DIODES
Dropper Diodes (OPTIONAL)	Dropper Diodes for Float and Boost Voltage Regulations. Available on request

DROPPER DIODES

Dropper Diodes (OPTIONAL)

Dropper Diodes for Float and Boost Voltage Regulations. Available on request

SAFETY & ENVIRONMENT
Circuit Breakers	Input: Miniatur circuit breakers; Output: Miniatur circuit breakers / NH Fuse; Battery: Miniatur circuit breakers / NH Fuse
Over Voltage Protection	IEEE 587 4500 A, 110 Joules (standard) / 40kA Surge Arrestor (OPTIONAL)
Electrical Interference Reduction	FCC Part 15 Class B
Electrical Standards	EN 50091-1 (Security) / EN 50091-2 (EMC)
Protection Level / Color	IP 20 / RAL 7035 (Standard), (Higher IP rating and different colors are available, please consult)
Isolation Voltage	2000VAC input/chassis and output/chassis
MTBF	100,000 hrs. (w/out battery group)
Enclosure Material	Mild Steel, Zinc-phosphate coated; 100 µm electrostatic paint; 1.5 mm thickness
Cooling	Forced fans / Natural (optional)
Cable Entry	Bottom / Top (optional)
Distribution	OPTIONAL
Heater & Lightning	OPTIONAL
Operating Temperature	-10 / +40 °C. Higher operating temperatures are available, please consult
Relative humidity	5 – 90 %
Operating Altitude	Max. 1000 Mt. (Higher altitudes requires de-rating, please consult )
Noise Level	Max. 65 db

SAFETY & ENVIRONMENT

Circuit Breakers

Input: Miniatur circuit breakers; Output: Miniatur circuit breakers / NH Fuse; Battery: Miniatur circuit breakers / NH Fuse

Over Voltage Protection

IEEE 587 4500 A, 110 Joules (standard) / 40kA Surge Arrestor (OPTIONAL)

Electrical Interference Reduction

FCC Part 15 Class B

Electrical Standards

EN 50091-1 (Security) / EN 50091-2 (EMC)

Protection Level / Color

IP 20 / RAL 7035 (Standard), (Higher IP rating and different colors are available, please consult)

Isolation Voltage

2000VAC input/chassis and output/chassis

MTBF

100,000 hrs. (w/out battery group)

Enclosure Material

Mild Steel, Zinc-phosphate coated; 100 µm electrostatic paint; 1.5 mm thickness

Cooling

Forced fans / Natural (optional)

Cable Entry

Bottom / Top (optional)

Distribution

OPTIONAL

Heater & Lightning

OPTIONAL

Operating Temperature

-10 / +40 °C. Higher operating temperatures are available, please consult

Relative humidity

5 – 90 %

Operating Altitude

Max. 1000 Mt. (Higher altitudes requires de-rating, please consult )

Noise Level

Max. 65 db

DC Battery Charger

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