Rotating Electrical Machines

Milestones 

1948

Electric Motors.

1953

Textile Electric Motors.

1955

169 kW (225 HP) 12 pole Slip Ring motor.

1958

Hydro Electric & Synchronous Generators.

1960

Pole changing Sugar Centrifuge Motors.

1963

Rotor of Sugar Centrifuge Motor made indigenous.

1966

Steam Turbine driven Generators for Sugar Factories.

1969

High Tension Electric Motors.

1972

500 kW Frequency set to Naval Dockyard.

1975

National Award for 120kVA Arno Covertor (Recognition Import Substitution).

1978

India's first twin drive H.T. Motors for Indian Seamless Tube (Mill Drive).

1981

Largest 2500 HP Electric Motor designed and manufactured indigenously.

1982

Development of India's Largest Twin-drive H.T. Motors for Cement Mills (1900 kW, 6.6 kV).

1984

6.6 kV, 5000 kW synchronous generator.

1984

Frequency Converter comprising synchronous motor and generator together with its voltage regulator and power factor controller.
Synchronous motor - 6.6kV, 50 Hz. 900 kW
Generator  1000 kVA, 460 V, 60 Hz..

1986

Supplied largest Alternator 5.4 MW to Straw Products Ltd. (Orissa) - for steam turbine manufactured by M/s. Blohm & Voss, West Germany - Largest manufactured in Private Sector Co.

1990

Pole Amplitude modulated motors - manufactured having two different operating speeds and one winding.

          

Higher basket size sugar centrifugal motor-2100 kg m2

    

6000 kW/11 kV/ 750 RPM Brushless Alternator for Diesel Engine Prime Mover - first in Private Sector.

1991

150 kVA Arno Converter.

1996

Wind Generator - developed

           

400 / 100 kW, 415 V (TEFC) Synchronous 500/1000 RPM (Synchronous), horizontal foot mounted in IP - 55 enclosure.

          

250 kW / 60 kW, 415 V, TEFC, 1500 RPM (Synchronous, single speed, flange - mounted in IP - 55 enclosure).

1998

Development of large Horizontal and Vertical Induction Generators with high run-away speeds for small hydro applications.

1999

Development of 70 kW high frequency induction motor for Electric bus.

2000

• INCREASED SAFETY:  Type ”e” certification from External agency for lower rating medium voltage motors [20 H.P./2 Pole/415Volts].
• Development of compact class H/H Alternators up to 750KVA/415Volts/4 Pole.
• Development of medium voltage single bearing Alternators for Diesel Engine Applications.
• Design , Development, Manufacturing and Testing of  Fan less Vertical Double Cage Motors for Pump application (MIDC-14 Nos.)

2001

• Design and Development of water-Jacket cooled 70kW/6Pole/200Volts/2-400Hz motors for Hybrid Electric Vehicle [for the project of ERDC & I, Ashok Leyland Ltd and Ministry of Information Technology - Delhi].
• Design, Development and Field Testing of Micro-processor Based AVR, for standard Alternators, up to 1000KVA.
• Design, Development and Testing of 8” Sleeve Bearing for Sugar Generators.
• Design and Execution of large rating 6 MW/ 8 Pole/ 11kV Horizontal Hydel Generator for Shimsha Hydel Project [Drawings created on Pro/Engg.].
• Design, Development, Manufacturing and Testing of 400 mm Thrust and Journal tilting Pad Bearing for Hydel Application.
• Use of Pro/Eng Software for the Solid Modeling [Shimsa Hydel Generator Prototype]
• Design, Development and Approval form RDSD, of Auxiliary Motors for new Railway WAG 9 [Motors VMT, VRH, MCP, M/c Room Blower, Oil cooler Blower, Scavenger Blower, To-Pump, Co-Pump].
• Type “e” Testing of High Voltage TEFC motor of rating 250kW/4P/CHT-400/3.3kV/Type “e” , by External Agency for Petro Chemical Industries.
• Design, Development, Manufacturing and Testing of cylindrical Rotor Alternator of Rating 3MW/415V/4P/Water Cooled with 8” Sleeve bearing for Sugar Industries.
• Design, Development, Manufacturing and Testing of Vertical motor of Rating 215kW/4P/6.6kV in 315 Frame for GEB.

2002

• Indigenous Development of “ Pole mounted Auto- Recloser ” for pole mounted Circuit Breaker for Switchgear unit.
• Indigenous Development of “Control unit for magnetic Actuator” for Switchgear unit.
• Design, Development, Manufacturing and Testing of Permanent Magnet Generator [PMG] for Standard Alternator up to 1000KVA.
• Design, Development, Manufacturing and Testing of the larger Rating High Voltage horizontal Motor of Rating 2092kW/11kV/8P/CACA [For Purander Project]
• Design, Development, Manufacturing and Testing of Vertical motor of Rating of 2150kW/10P/11kV/Water Cooled [For Purander Project]
• Design, Development, Manufacturing and Testing of Marine Alternator of Rating 400kW/415V/1500RPM with in built Water tight construction [IRS Inspecting Authority]

2003

• Design, Development, Manufacturing and Testing of 800kW/6P/6.6kV/CACA motor for I.D. fan application [For Kutch Lignite Power Station]
• Design, Development, Manufacturing and Testing of 565kW/6P/6.6kV/CACA for F.D. fan application [For Kutch Lignite Power Station].
• Design, Development, Manufacturing and Testing of 450kW/4P/6.6kV/TEFC for F.D. fan application, for Nuclear Power Corp. (Kota Unit).
• Design, Development, Manufacturing and Testing of Rating 6MW/12P/11kV Horizontal for Kemphole Hydel Project.
• Design, Development, Manufacturing and Testing of High Efficiency [97%],low noise[70dB(A)] Larger Rating, Vertical High Voltage Motor for Pump Application. Rating of 1320kW/14P/6.6kV/CUCW [Vijay Wada TPS]
• Execution of one number 7MW/4P/11KV Water-cooled cylindrical Rotor Alternators against order, based on Jeumont Collaboration.
• Order for 115 Nos. Windmill Generators of rating 225kW(4P)/40kW(6P)415V in Frame CTFG-355 for NEPC, India Ltd.

2004

• Order for 300 Nos. Windmill Generators of rating 225kW(4P)/40kW(6P)415V in Frame CTFG-355 for NEPC, India Ltd

2005

• Successfully Designed, Engineered, Manufactured and Tested Largest Rating Vertical Motor of rating : 2250 kW (3000hp) 6600 Volts, 595 r.p.m. (10-Pole), Vertical - Mounting with Closed-Air-Circuit-Air-Cooled (C.A.C.A.) for Lift - Irrigation Schemes. Latest design techniques were used to achieve energy efficient design combined with low-noise and vibration levels and optimizes material content and process time. Improvement in assembly, tolerances and clearances were achieved through latest state-of-the-art software like Pro/Engineer. The product has achieved the success as "FIRST - TIME - PASS" with "ZERO DEFECT".