Pre-Cooling Battery Charger 30 KW

BATTERY CHARGER 30 KWPRE-COOLING

for SGAC Coaches

Pre-cooling Unit Cum Charger IGBT based front end 30kW. The DSP based system works in four different modes to meet the requirement of SGAC coaches for Indian Railways.

Compliant Standards: IEC 60571, IEC 61000, IEC 61373.

State of the art DSP based system.
IGBT based rectifier to obtain input power factor close to Unity (0.99).
Low noise level smaller than 65 dB.
Very low voltage and current ripples smaller than 2%.
Facility to receive data via RS 232 communication on laptops for online data monitoring.
With onboard display unit to change the working mode and check the status of unit.
Capability to charge battery in constant voltage as well as constant current mode for different type of batteries (VRLA and LMLA with different current hour ratings).

Technical Specifications

A. Input

Factors	Values
Nominal Voltage	415V ± 15%, 3-Phase AC
Frequency	50Hz ± 3%
Power Factor	0.99 (At Rated Current)

B. Output

Factors	Values
Output Power	30kW maximum
DC Output Voltage	100 - 155 VDC
DC Output Current	220A
Operating Modes	System works either in constant voltage or constant current mode while charging the Battery exclusively. In pre-cooling mode unit works as constant voltage. Modes selections are with external keyboard.

C. General

Factors	Values
Operating ambient temperature	5°C to +55°C
Cooling	Natural Cooled
Control Voltage	Self Generated from input Power
Mounting: Cubicle – 1	Under slung
Mounting: Cubicle – 2	On-board Mounting in Coaches
Weight	≈ 350kg

Applications

The product is for under-slung fitment in self generating air conditioned coaches primarily for precooling the air conditioned coaches at the yard / station and charging the batteries (VRLA or LMLA fitted in Coaches).

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