EXPERTISE IN CONSULTANCY
AREAS OF CONSULTANCY
1) DC-DC Converters
2) Inverters
3) SMPS
4) Battery Chargers & Dischargers
5) Rectifiers
6) Magnetic component design (power frequency as well as high frequency transformers & chokes and CVT)
7) FACTS devices
8) Power filters
9) EMI/EMC
10) Power semiconductor applications
11) Fail-safety validation
12) Motor drives
13) Converters for lighting applications
14) Converters for grid-interconnection
SOME CLIENTS
1) Central Mechanical Engineering Research Institute, Durgapur
2) Statcon Power Controls Ltd., Noida.
3) Statcon Energiaa, Noida
4) SIGNOTRON (India) Ltd., Kolkata.
5) RT Vision Technologies Pvt. Ltd., Noida.
6) Titagarh Wagons Ltd., Kolkata
7) S. S. Electra Power Systems, Narendrapur.
8) Luminous Power Technologies Pvt. Ltd. (SAR Group), N. Delhi
9) Advanced Powertech, N. Delhi
10) Indusree, Kolkata
11) Biomoneta Research Pvt. Ltd., Bangalore
SPECIMEN INDIGENOUSLY DESIGNED & DEVELOPED PRODUCTS
Fuel Pump Motor with built-in Inverter for Diesel Locomotives
Features :
More reliable than DC Motors
No Maintenance
Fully microcontroller-based compact design
One compact unit of AC motor with built-in inverter
Easy interchangeability with existing DC motors
Accept wide range swing in input voltage from 20V to 80V DC
Constant torque with v/f control
Reverse Polarity protection in the input side of the inverter
.
DSP controlled IGBT based 35kW Battery Charger for Railway rolling stock
Features:
DSP controlled IGBT based front-end converter with active power factor correction.
PWM controlled high frequency full bridge isolated DC-DC converter in 2nd stage.
Wide input 3-phase AC voltage (50Hz / 60Hz) range from 350V – 480V.
Extensive output DC voltage range upto 155 VDC.
Output DC current upto 220A.
Efficiency > 91%.
Near Unity power factor.
THD <= 5% for both input voltage and current.
Low weight and compact size in comparison with SCR based chargers
Overload and short-circuit protected.
Ground Power Units (GPU) for Aircraft Starting & Testing
Features :
Can be driven along tarmac to aircraft
Diesel engine driven alternator for 400Hz supply
Battery backup
28V dc supply at 1000A for engine starting
Submarine Battery Chargers for Navy
Features :
Can be driven upto sea shore
Upto 380V, 4000A output
Can operate at hostile marine weather
Uses two rectifiers in parallel current sharing mode, each with 12 pulse output