Autometers Alliance Ltd is an ISO9001, ISO14001, ISO45001 certified Indian company manufacturing high technology products to international standards.

Contact Info

+91 120 6770100
support@autometers.com

C-63, Sector-57, Noida-201307, UP, India

UNDERSLUNG CONVERTER 50KVA

for Metro Railways

Underslung 50 kVA (25 kVA AC and 25 kW DC) IGBT based converter for Metros.

Compliant Stadards: IEC 61287-1 (Edition 2.0), IEC 60571 (Edition 2.1), IEC 60310 (Edition 3.0), IEC 61373 (Edition 2.0), and other relevant IEC and Indian (BIS) standards.

  • State of the art DSP based system.
  • Stabilized and balanced outputs
    1. Three-phase, 415V, 50Hz for air compressor.
    2. 110V DC (Boost voltage 150V DC and Float voltage 126 V DC) for battery charging and auxiliary loads.
  • Balanced three-phase output eliminates the need of special auxiliary motors there by reducing the cost of auxiliary motors.
  • Wide DC Input variation (500 - 990 VDC) including 4.5% ripple and safety margin.
  • Maintenance free, being fully static.
  • Low noise level.
  • Underslung structure with IP65 protection class.
  • Online monitoring.
  • Event and Data logging facility.
  • Natural cooled.
  • Boost and Float changer for smooth charging of battery.
UNDERSLUNG CONVERTER 50KVA

Technical Specifications

A. Input

Factors Values
Nominal Voltage 750 V DC Range 500 – 990 VDC including 4.5% ripple 

B. Output

Factors Values
Output power 25 kVA, Three- phase, 415 V, 50 Hz AC and 25 kW, 110 V DC
Output AC current ripple for 25kVA AC, < 5% at full load upto 20th harmonics upto 1000Hz
Output AC current waveform Close to sinusoidal (for 25 kVA AC)
Efficiency >92%

C. General

Factors Values
Operating ambient temperature 5°C to 55°C
Cooling Natural
Display & Communication part Vacuum fluorescent display (VFD and RS232, CAN part for data retrieval)
Control Voltage Nominal 110 V DC (77 to 137.5V)
Weight ~ 900 Kg
Envelope size 2100 × 1240 × 700 (L×W×H) in mm

 

Applications

Converts third rail DC input voltage with wide variation to stabilized three-phase, 415V, 50 Hz voltages for air compressors and 110V DC for battery charging and auxiliary loads.

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