1. involved in Design, Manufacturing and repairs of following
products.
1 - Industrial Rectifiers / Constant Current Sources – Engine
Cranking, Electroplating
2 – Industrial Battery Chargers / S. M. P. S. for Electric Vehicles,
general applications , etc.
3 – Servo Voltage Stabilizers for variety of industries &
applications.
4 - Frequency Converters – for 60 Hz, 100 Hz 400 Hz or various
power frequency generation for machines from USA ,Germany.
5 – Mag-Demag systems for Electro-Magnetic Lifters, and
Electromagnetic & permanent magnetic Chucks.
6 – Industrial Inverters / Lift Inverters / On Line UPS.
Gayatri Engineers,. Pune
Sudhanshu V. Shrikhande –
at Gayatri Engineers, Pune

2. Sudhanshu V. Shrikhande.
Educational qualification
B E Electronics, Pune.
Diploma Electronics, V.J.T.I. Mumbai.
Design & Manufaturing Work Experience-
1. Astral Electronics, Pune- UPS, Inverters, Stabilizers.
1991—1993
2. Electronica Machine tools Ltd. ,Pune- Design-Development and project manager.
1993—1998
3. Nelco Ltd. Tata group co. – Application development with variety industrial processes of
Variable Frequency Drives ( VFD )
1998-2001
4. Gayatri Engineers- C. E. O.
2001--2015
Gayatri Engineers,. Pune

3. Customers
• Cummins India Ltd. Pune, Phaltan, Pirangut
• Kirloskar Oil Engines Ltd. Pune, Kagal ( Kolhapur )
• Philips India Ltd., Chakan , Pune.
• Forbes Marshall, Chakan, Pune.
• Rinder India Ltd., Chakan, Pune.
• Autoline Industries, Chakan, Pune.
• Dhoot Transmissions Ltd. , Chakan, Pune.
• Bharat Forge Ltd., Pune & Baramati.
• Sparkline Equip Pvt Ltd., Pimpri, Pune.
• Eaton fluid, Pimpri, Pune.
• Mahle Behr India Ltd., Chakan, Pune.
• SAJ Test Plant Pvt. Ltd, Mundhwa , Pune.
• Dynomerk Controls, Bhosari, Pune.
• Dynalec Controls , Shivane, Pune.
• AVL India, Gurgaon,
• IASYS Tech , Shivane, Pune.
• Consolidated Hoists, Pune.
• Mala Fruit products, Panchgani , Wai.
• Photonix India Ltd., Wai MIDC.
• Denso , Haryana.
• Swaraj Dairies, Phaltan, Satara.
Gayatri Engineers,. Pune

4. Battery Charger
Application – Batteries of UPS, Inverter, Gensets,
Electric Vehicles etc.
•Power range- 12V 24V 36V 48V at 5 Amp to 50 Amp. And
many more
•Input – Single phase / 3 phase.
•Output – Different voltages to suit the battery bank.
•High Frequency or 50 Hz or 30 Hz
•Output at Terminal strip or Suitable Battery Connector.
•Analogue / Digital voltmeter, Ammeter for Battery.
•Input & output is protected by a fuse / MCB.

5. Battery Indicator
Application – Battery operated trolleys, electric
vehicles, etc.
•It helps to estimate a Charging percentage of a Battery .
•It informs a user how much charge is balance in a battery.
•It helps auser to take a decision of his battery vehicle.
•Battery operated system. Requires no separate electric
supply.
•Small size panel mountable unit.
•100 mm x 100 mm x 120mm, Weight- 0.5 Kg.
•LED display for user.
Gayatri Engineers,. Pune

6. • Battery Tester
• Application – To confirm a 12V Battery if it is
Discharged – Weak – Dead. It saves a lot of time
on decision making of a battery, if it is weak or
bad or discharged.
• Hand held unit, 3 Inch x 12 Inch x 3 Inch, Weight-
1 Kg.
• Voltage Digital display for user.
Gayatri Engineers,. Pune

7. • Constant Current
Sources.
Application- Electroplating for Metals, PCBs, Jewellery.
• Input– 1ph , 3 ph, 50 Hz,
• Output – 10 Amp to…3000 Amps. At 6 VDC to
24 VDC
• Mimimum ripple for better performance.
• Controlled Rectifiers with suitable filters.
• Variac based systems.
• Transformer based 12 pulse rectifiers.
• Input MCB / MCCB .
• Output MCB , MCCB .
• Terminations for input & output.
• Digital voltmeter & Ammeter.
• Indoor / Outdoor /Air cooled / Oil cooled.
100 amp current source
30 amp current source
Gayatri Engineers,. Pune

8. Gayatri Engineers, Pune.
• Constant Voltage
Sources.
Application- Testing of compenents, panels, etc.
• Input– 1ph , 3 ph, 50 Hz,
• Output – 10 Amp to…3000 Amps. At 0 VDC to
600 VDC
• Mimimum ripple for better performance.
• Controlled Rectifiers with suitable filters.
• Variac based systems.
• Transformer based 12 pulse rectifiers.
• Input MCB / MCCB .
• Output MCB , MCCB .
• Terminations for input & output.
• Digital voltmeter & Ammeter.
• Indoor / Outdoor /Air cooled / Oil cooled.
32 VDC AT 30 AMPS
14VDC 200AMP LAMP
TESTING

9. •Engine Cranker Rectifier
Application- Engine Testing /
Starting.
•Output Voltage rating- 12 V 24 V DC.
•Output Current rating -60 --3000 amp
•Input – 3 phase, 415Vac.
• Selectable outputs in single rectifier system as 12V and / or 24V.
• Output voltmeter & ammeter.
• Mains R-Y-B Indications.
• Start-Stop push buttons.
• 2 wire Start /Stop for distant operations.
• Thermal protection at the input.
• MCB at the input for ON-OFF and protection.
• Indoor-Outdoor enclosures.
• With wheels & lifting bolts
Gayatri Engineers,. Pune

10. Frequency Converter.
•It is a pure sine wave POWER SOURCE.
• application- conversion of power from any frequency to any
fixed frequency or a variable frequency. 50, 60, 400 Hz, etc.
• Input – 1 ph, 3 ph Indian or Americal standard.
• Output – 1 ph, 3 ph Indian or Americal standard.
• Voltages- 100-110-120-230-300-380-415-440-480-560 any range.
• Indoor –Outdoor enclosures.
Gayatri Engineers,. Pune

11. Mag-Demag system and
Capacitor Discharge systems.
• Used to magnetize and demagnetize the
Electromagnetic
• Chucka and Electro-permanet magnetic chucks.
• Mag Demag systems offer 110 / 220 VDC at currents
from 2 amp to 40 amps.
• Capacitor Discharge systems offer heavy current pulse
• into the coil of magnet and put the magnet into deep
saturation.
• Applications - Magnetic chucks for Grinding /Milling
machines & Material Lifting.
• Wire remote are used to operate the above systems.
110V 30A110V 5A
Capacitor discharge system
Gayatri Engineers,. Pune

12. Variac based D C Sources
Testing applications.
• Power range- from 1 KW to 100 KW.
• Input–3 ph, 50 Hz, Indian Standard.
• Output – 12 V to 400 VDC.
• Unbalanced Line and Load regulation.
• Transformer base or Variac based system,
• Input MCB / MCCB .
• Output MCB , MCCB .
• Terminations for input & output.
• Digital voltmeter, Ammeter.
• Indoor / Outdoor /Air cooled / Oil cooled.
200-400 Vdc at 25Amp
60 amp 3 ph variac
Gayatri Engineers,. Pune

13. Servo stabilizer 1 ph to 1 ph.
• Power range- from 0.5 KVA to 15 KVA.
• Input – 180 to 270 vac, 1 ph, 50 Hz,.
• Output – 230 vac +/ - 1 %.
• Servo mechanism with ac synchronous motor,
• Input mains cord upto 3 kva ., Output socket upto 3 kva.
• Terminal strip for input & output > 3 kva.
• Analogue voltmeter, common for input & output., Input & output is protected by a fuse / MCB.
• ( Fuse upto 3 kva and MCB for others ).Protection at Output overvoltage & undervoltage .
• Output is automatically Cut-OFF at O/v and U/v and automatically re-starts when the voltage is in
operating limits.
Gayatri Engineers,. Pune

14. • Servo stabilizer 3 ph to 3 ph.
• Power range- from 1 KVA to 600 KVA.
• Input–250,300,340,360,380 to 460, 480, 500 vac,
• Output – 380 , 415, 440, 480 vac +/ - 1 %.
• Unbalanced Line and Load regulation.
• Servo mechanism with ac synchronous motor,
• Input MCB / MCCB , Output MCB , MCCB .
• Terminations for input & output.
• Analogue voltmeter, separate for input & output.
• Input & output is protected by an MCB / MCCB.
• Protection at Output overvoltage & undervoltage .
• Output is automatically Cut-OFF at O/v and U/v and
• automatically re-starts when the voltage is in operating limits.
• Indoor / Outdoor /Air cooled / Oil cooled.
Stabilizer 250 kva 3phase
Stabilizer 50 kva 3phaseGayatri Engineers, Pune.

15. ON LINE UPS & Lift Inverter &
batteries.
It is a pure sine wave POWER SOURCE.
Applications- Computers, Industrial CNC machines, Lift
back up,
Home or Office back up.
Stable Voltage and Frequency .
Input – 1 ph 230vac or 3 ph 415vac.
Output – 1 ph 230vac or 3 ph 415vac.
Indoor –Outdoor enclosures.
Gayatri Engineers,. Pune

16. Contact Us-
Gayatri Engineers.
Works—
Gala no. 110-111, Yashada Ind Estate, Narhe, Pune-411041
( general communication- 30-Electronic Estate, Pune-Satara Rd. Pune 411009 )
Web- www.gayatriengineers.com
Mail- gayatriengineers@vsnl.net , sudhanshushrikhande@gmail.com
Tel-020-24220454 , 9822479521
Products-
servo stabilizer- 1 ph / 3 ph, UPS, Frequency Converters, Rectifiers, Mag Demag
& Capacitor discharge units, Battery Chargers , Constant current sources . DC
Sources.
Gayatri Engineers,. Pune