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.

SPECIMEN INDIGENOUSLY DESIGNED & DEVELOPED PRODUCTS

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 
.

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 .
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

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.
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

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
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

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