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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.
BATTERY CHARGER 30 KW
PRE-COOLING
for SGAC Coaches
Technical Features
- 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).
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).
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 |