



INNOVATIVE ENGINEERING SOLUTIONS for YOUR PUMP and GEAR BOX NEEDS
Generator Transformers

Technical Specs
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Power Range: 25 to 600 MVA
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Voltage Range: 33 to 400 kV
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Standards: ANSI, IEC, IS, BS, Others
Features
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Better short circuit strength
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Compact design
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Durability
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Optimum losses
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Lower footprint
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Low temperature rise
Shunt Reactors

Technical Specs
Dielectric Analysis:
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Winding Insulation
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Impulse Withstand
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Oil Duct Stresses
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Creep Stresses
Electro-Magnetic Analysis:
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Stray Losses in Structures
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I²R and Eddy Losses in Windings
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Reactance
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Tank Hot-Spot
Thermal Analysis:
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Core Temperature
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Winding Gradient
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Cooling
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Oil Flow
Structural Analysis:
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Clamping Structure
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Pressure Withstand
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Vacuum Withstand
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Seismic Stability
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Transport Capability
Features
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Compliant with IEC, ANSI, BIS, ISO and other international standards
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Customized to customer’s specifications
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Capable to withstand extreme environmental conditions
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Capable to withstand seismic, wind and ice loads
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Capable to withstand transport shocks
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Low noise and vibration levels
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Low weight and less carbon footprint
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Easy assembly with fewer loose parts
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Arrangements for worker safety at substations
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Compact size requires lower expenditure on civil structures
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Easily transportable to remote sites with narrower roads
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Transportability through road, rail, sea and air
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Require low maintenance
Auto Transformers

Technical Specs
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Power Range: 50 to 1,500 MVA
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Voltage Range: 132 to 765 kV
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Standards: ANSI
Features
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Better short circuit strength
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Compact design
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Durability
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Optimum losses
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KEMA Tested
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Epoxy bonded CTC for common winding to improve short circuit withstand strength
Furnace Transformers

Technical Specs
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Ratings: 12 to 46 MVA
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Voltages: 0.7 to 33 kV
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Standards: ANSI, IEC, IS, BS, Others
Features
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Customized designs
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High Endurance Capability against Frequent Short Circuits
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Unique designs
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Optimum losses
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Long life
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Sustain durability
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Low maintainance
Low Power Transformer Up To 50 MVA, 132 Class

Technical Specs
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Ratings: 4 MVA to 50 MVA
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Voltage: Up to 132 kV
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Description: Low power transformers are used to step down high voltage (e.g., 132 kV / 66 kV) to medium voltage (e.g., 33 kV / 11 kV)
Applications
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Oil and Gas, Infra - Projects, Mines Metal Minerals, Railways, FMCG, Power Generations, Smarts Cities, SEBs, etc.
End Applications:
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Generator Transformers are used as step up transformer at generator end application
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Station Transformers are used to supply auxiliary load to power plant
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Unit Auxiliary Transformer are used to supply power to auxiliary equipment
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Multi winding Transformers are used in rectifier duty application
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System Transformers are used as intermediate to step down the voltage
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Solar Transformer

Technical Specs
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Rated Power: Up to 5 MVA
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Rated Voltage: Up to 36 kV
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Phases: 3 Phase Unit
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Rated Frequency: 50 Hz
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Type of Cooling: ONAN
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Manufacturing Standards: IS 2026
Features
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Proven technology of CG Global design having superior short circuit withstand Capability.
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Manufacturing technology with automatic SCADA controlled CNC machines for maintaining process parameters during windings and achieving high quality electric and mechanical connections.
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All the ratings are type tested as per IS: 2026.
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CG is partnering with global leaders for exploring potential of solar energy & introducing advance technology.
DT as per IS1180

Technical Specs
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Ratings: 315 kVA to 4 MVA
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Voltages: 3.3 kV to 33 kV
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Standards: IS 1180 (BIS) / IS 2026 (BIS) / IEC 60076
Features
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Automated production resulting in uniform quality by using CNC machines.
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No axial force under short circuit condition due to foil construction resulting in increased reliability.
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Increased withstand capacity during short circuit due to increase in the surface area of winding.
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Compact Transformer.
Applications
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Refineries, Chemical Plants, Cement Plants, Large Infra Projects, Smart Cities, SEBs, Various Industries etc.
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Industrial Transformers are used in Industries to cater lighting load & load of 3 ph motors
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Sub Station Transformers are used in substation to provide electricity to house hold
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Multi winding Transformers are used in converter inverter duty application
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Dry Type Cast Resin Transformers

Technical Specs
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Type: Vacuum Pressure Impregnated or Cast Resin Type
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Output: 315 kVA to 3,000 kVA
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Voltage: 3.3 kV to 33 kV
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Frequency: 50 Hz or 60 Hz
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Standards: IS and IEC
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Insulation: Class H or F
Features
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Permium Quality Casting
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Non- Hygroscopic
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Non-Inflammable
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High short circuit strength
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High impluse strength
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Low losses
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Long life cycle
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Low Maintenance
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Low cost installation
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Space saving
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Certified safe
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State-of-the-art construction for optimum performance
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Safety features of low voltage windings
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Safety features of high voltage windings
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Optimal thermal protection
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Environment friendly
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Easy installation and connection
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Reliable
Bio Transformers up to 132 KV Class

Technical Specs
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Ratings: 315 kVA to 4 MVA
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Voltages: 3.3 kV to 33 kV
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Standards: IS 1180 (BIS) / IS 2026 (BIS) / IEC 60076
Features
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Updated electrical design due to permittivity changes.
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Tailored cooling design due to viscosity changes.
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Experimentally validated in house design software.
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Adapted procedures for impregnation & oil filling process.
Applications
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In ecologically sensitive locations.
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Specific regulations apply.
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Near rivers and lakes.
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Near drinking and groundwater reserves.
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Near crowded place
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Industrial Transformers used in Industries to cater lighting load & load of 3 ph motors
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Residential Transformers for distribution of power to house hold.
Metro Traction Transformers

Technical Specs
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Ratings: Up to 30.24 MVA
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Voltage: Up to 132 kV
Features
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Traction transformers are critical components in the traction chain, affecting both train performance and operator services.
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CG supplies traction transformers for all applications: locomotives, tram-trains and AC metros offering different designs in terms of size, weight and power ratings.
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They can be mounted either in the machine room of the train, on the roof or under the floor, providing maximum flexibility and reliability in single and multiphase systems.
Applications
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Traction Transformers are used in Railways to give power to DC/AC motors in engine.
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Track side Transformers are used to step down the voltage to the level of catenary voltage i.e. 25 kV

