Distribution Transformer Manufacturer in India
100 kVA–5000 kVA | Oil-Immersed Transformer Solutions for Industrial, Commercial & Utility Applications

Technical Specifications

  • KVA Range:  100 kVA – 5000 kVA
  • Primary Voltage:  11kV / 33kV / 6.6kV
  • Secondary Voltage:  433V / 415V / 230V
  • Frequency:  50 Hz
  • Cooling:  ONAN (Oil Natural Air Natural)
  • Standard:  IS 1180, BIS
  • Insulation Class:  A / E / B
  • Efficiency:  >99% at full load
  • DESCRIPTION

    Distribution Transformer Manufacturer in India – 100 kVA to 5000 kVA

    Tirupati Transformer is a transformer manufacturing company based in Greater Noida, Uttar Pradesh, serving customers across Delhi NCR and other parts of India. We manufacture and supply Distribution Transformer solutions for industrial, commercial, infrastructure, utility, renewable energy and institutional applications.

    Our distribution transformers are engineered according to the required electrical specifications, installation conditions, loading requirements and applicable standards. Depending on the application, customers can specify voltage ratio, kVA rating, vector group, impedance, tapping arrangement, cooling method, winding material and other design parameters.

    From standard distribution transformer requirements to application-specific transformer solutions, our focus is on reliable electrical performance, controlled manufacturing, testing and proper technical documentation.

    Looking for a Distribution Transformer Manufacturer in India? Contact Tirupati Transformer for technical consultation and a quotation based on your project requirements.

    What Is a Distribution Transformer?

    Quick Answer: A distribution transformer is an electrical device that steps down high voltage (11kV or 33kV) from the power grid to safe, usable voltage (433V three-phase or 230V single-phase) at the consumer end — making it the final and most critical link in India’s power delivery chain.

    Based in Greater Noida, we also supply distribution transformers in Delhi NCR with fast local delivery, factory inspection before dispatch and on-site support.

    For example, a transformer can step down an 11 kV supply to a low-voltage distribution level such as 433 V, depending on the system design and project requirements.

    Distribution transformers are commonly installed near electrical loads to provide an efficient and reliable supply to:

    • Industrial facilities
    • Commercial buildings
    • Residential developments
    • Manufacturing plants
    • Infrastructure projects
    • Educational institutions
    • Hospitals
    • Renewable energy installations
    • Utility distribution networks
    • Commercial and industrial electrical systems

    The correct transformer rating depends on connected load, demand factor, future expansion, voltage level, operating environment and required performance.

    Distribution Transformer Manufacturer in India

    Choosing the right Distribution Transformer Manufacturer is important because transformer performance directly affects the reliability and efficiency of an electrical distribution system.

    Tirupati Transformer provides transformer solutions designed around project-specific requirements. Our manufacturing approach covers core selection, winding, insulation, tank fabrication, assembly, accessories, testing and documentation.

    We work with customers to understand:

    • Required transformer capacity
    • Primary and secondary voltage
    • Frequency
    • Vector group
    • Percentage impedance
    • Tap range
    • Cooling arrangement
    • Installation environment
    • Indoor or outdoor application
    • Winding material
    • Protection and monitoring requirements

    This engineering-based approach helps customers select a transformer suitable for their electrical system rather than choosing only on the basis of kVA rating.

    Distribution Transformer Range

    Tirupati Transformer can provide distribution transformer solutions across different ratings and configurations based on project requirements.

    Typical Applications

    • 11 kV distribution systems
    • 33 kV distribution systems
    • Industrial power distribution
    • Commercial electrical distribution
    • Solar and renewable energy projects
    • Infrastructure projects
    • Manufacturing units
    • Utility and substation applications
    • Construction and real-estate projects

    For higher-capacity requirements, the transformer design and applicable standards should be evaluated according to the specific application and rating.

    11 kV Distribution Transformer

    An 11 kV Distribution Transformer is widely used for stepping down medium-voltage electrical supply to a lower distribution voltage.

    A common configuration is:

    11 kV / 433 V

    However, the actual voltage ratio, vector group, impedance and tapping arrangement should be selected according to the electrical system and project specifications.

    11 kV distribution transformers can be used in:

    • Industrial plants
    • Commercial complexes
    • Residential projects
    • Utility distribution
    • Solar projects
    • Infrastructure installations
    • Manufacturing facilities

    33 kV Distribution Transformer

    For systems operating at higher distribution voltage levels, a 33 kV Distribution Transformer can be designed according to the required electrical specifications.

    These transformers may be used in:

    • Industrial distribution networks
    • Large infrastructure projects
    • Utility systems
    • Renewable energy installations
    • Substation applications
    • Large commercial and industrial facilities

    The transformer rating, insulation requirements, clearances, accessories and testing requirements should be finalized according to the project specification and applicable standards.

    Oil Immersed Distribution Transformer

    An Oil Immersed Distribution Transformer uses transformer oil for electrical insulation and heat transfer.

    Oil-immersed transformers are commonly selected for outdoor electrical distribution applications because of their established design and cooling characteristics.

    Depending on the design, features may include:

    • CRGO steel core
    • Copper or aluminium windings
    • Mineral insulating oil or specified insulating fluid
    • Radiator or corrugated tank construction
    • Conservator arrangement where applicable
    • Breather arrangement where applicable
    • Off-circuit tap changer
    • Temperature indicators
    • Oil level indication
    • Pressure relief arrangements
    • HV and LV bushings
    • Earthing provisions

    The final configuration depends on the transformer design and customer requirements.

    KVA RANGE & AVAILABLE RATINGS

    We manufacture distribution transformers in the following standard KVA ratings. Custom ratings outside this range are also engineered on request:

    CategoryAvailable KVA Ratings
    Small Range100 kVA, 160 kVA, 200 kVA
    Medium Range250 kVA, 315 kVA, 400 kVA, 500 kVA
    Large Range630 kVA, 750 kVA, 1000 kVA, 1250 kVA
    Extra Large1500 kVA, 2000 kVA, 2500 kVA, 3000 kVA
    Heavy Duty4000 kVA, 5000 kVA

    💡 Need a non-standard rating? Our in-house design team can engineer custom distribution transformer units as per your exact load calculations, voltage ratio, and environmental specifications. Request Custom Engineering →

    Distribution Transformer Construction

    The performance of a transformer depends on the quality of its electrical and mechanical construction.

    Transformer Core

    The magnetic core is manufactured using suitable electrical-grade CRGO steel. Core design is optimized to control no-load losses, magnetizing current and overall transformer performance.

    Transformer Windings

    Windings may be manufactured using copper or aluminium conductors according to the required electrical and thermal design.

    The winding design considers:

    • Current density
    • Insulation system
    • Short-circuit strength
    • Temperature rise
    • Voltage level
    • Mechanical strength

    Insulation System

    The insulation system is selected according to the voltage class, transformer design and operating conditions.

    Proper insulation coordination is important for maintaining electrical reliability throughout the transformer service life.

    Transformer Tank

    The tank provides mechanical protection and contains the transformer core, windings and insulating medium in oil-immersed designs.

    The tank design considers:

    • Mechanical strength
    • Oil containment
    • Sealing
    • Pressure conditions
    • Corrosion protection
    • Transportation requirements

    Distribution Transformer Manufacturing Process

    At Tirupati Transformer, transformer manufacturing involves multiple controlled stages.

    1. Engineering & Design

    The transformer is designed according to electrical specifications, capacity, voltage ratio, impedance, vector group, cooling arrangement and application.

    2. Core Manufacturing

    Electrical-grade CRGO laminations are processed and assembled according to the required core design.

    3. Winding

    HV and LV windings are manufactured according to the electrical and mechanical design.

    ParameterCopper WindingAluminium Winding
    ConductivityHigherLower
    ResistanceLowerHigher
    EfficiencyBetterSlightly lower
    WeightHeavierLighter
    LifeLongerGood
    CostHigherLower
    Best ForIndustrial, DISCOMHousing, budget projects

    4. Core-Coil Assembly

    The core and winding assembly is completed with appropriate insulation and mechanical arrangements.

    5. Tank Fabrication

    The transformer tank and associated components are fabricated according to the required mechanical design.

    6. Assembly

    The transformer is assembled with bushings, tap changer, cooling components, accessories and other specified equipment.

    7. Oil Processing

    For oil-immersed transformers, the insulating oil and internal insulation system are processed according to the applicable manufacturing procedure.

    8. Testing

    The completed transformer undergoes applicable routine and/or type/special tests according to the project specification and relevant standards.

    9. Final Inspection

    Final inspection covers physical condition, accessories, nameplate details, dimensions, documentation and test results.

    10. Dispatch

    After completion of inspection and documentation, the transformer is prepared for safe transportation to the project location.

    Distribution Transformer Testing

    Testing is an essential part of transformer manufacturing because it helps verify electrical performance and construction quality.

    Depending on the transformer design and applicable requirements, testing may include:

    • Winding resistance test
    • Insulation resistance test
    • Voltage ratio test
    • Polarity and phase-relation verification
    • No-load loss and current measurement
    • Load loss measurement
    • Impedance measurement
    • Applied voltage test
    • Induced voltage test
    • Oil-related tests where applicable
    • Temperature-rise or other specified tests
    • Type or special tests where required

    Testing requirements should always be determined according to the applicable standard, transformer design and customer specification.

    Distribution Transformer Efficiency and Losses

    Transformer efficiency is an important consideration when selecting a distribution transformer because losses occur during both no-load and loaded operation.

    The two major categories are:

    No-load losses: These are primarily associated with the transformer core and occur whenever the transformer remains energized.

    Load losses: These are mainly associated with winding resistance and other load-dependent effects and increase with transformer loading.

    An appropriately designed Distribution Transformer Supplier in Delhi aims to achieve the required electrical performance while minimizing avoidable losses.

    In India, Distribution Transformers are included in the Bureau of Energy Efficiency’s Standards & Labelling programme.

    BIS and Applicable Standards for Distribution Transformers

    Transformer standards depend on the transformer type, voltage, rating and intended application.

    For outdoor oil-immersed distribution transformers, BIS 1180 (Part 1) is an important Indian Standard. The current BIS listing identifies the standard for outdoor oil-immersed distribution transformers up to and including 2,500 kVA and 33 kV.

    For a specific project, the applicable BIS/IS requirements should be confirmed according to:

    • Transformer rating
    • Voltage class
    • Transformer construction
    • Installation
    • Customer specification
    • Utility/DISCOM requirements
    • Applicable certification requirements

    Tirupati Transformer manufactures transformers according to applicable technical specifications and standards relevant to the ordered product.

    Distribution Transformer Applications

    Distribution transformers are used across a wide range of industries and electrical systems.

    Industrial Applications

    Used in manufacturing plants, engineering industries, processing facilities, warehouses and other industrial installations.

    Commercial Applications

    Suitable for malls, offices, hotels, commercial buildings and large electrical installations.

    Infrastructure Projects

    Distribution transformers can be used for airports, metro-related infrastructure, institutional facilities and other infrastructure developments.

    Renewable Energy

    Transformers are an important part of solar inverter duty transformer and renewable energy electrical systems. The transformer design depends on the inverter, grid voltage and project configuration.

    Utility Distribution

    Distribution transformers are widely used in electrical distribution networks for supplying lower-voltage consumers.

    How to Select the Right Distribution Transformer?

    Before purchasing a distribution transformer, consider the following parameters:

    1. Transformer Capacity

    Select the kVA/MVA rating based on present load, demand and expected future expansion.

    2. Primary Voltage

    Specify whether the system requires 11 kV, 22 kV, 33 kV or another voltage level.

    3. Secondary Voltage

    The secondary voltage should match the requirements of the connected electrical system.

    4. Vector Group

    The appropriate vector group should be selected according to the system configuration and protection requirements.

    5. Impedance

    Percentage impedance affects voltage regulation and fault-current characteristics.

    6. Tapping Arrangement

    Off-circuit or on-load tap-changing arrangements can be considered depending on the application.

    7. Installation Environment

    Outdoor, indoor, high-temperature, dusty, humid, coastal and other environments may require different design considerations.

    8. Efficiency and Losses

    Evaluate no-load and load losses rather than comparing transformers only on purchase price.

    9. Testing and Documentation

    Ensure that the supplier provides the required test reports, drawings, nameplate details and other project documentation.

    Distribution Transformer Price in India

    The Distribution Transformer Price in India depends on several factors, so a single fixed price cannot accurately represent every transformer.

    Important cost factors include:

    • Transformer capacity
    • Voltage ratio
    • Copper or aluminium winding
    • Core material
    • Loss requirements
    • Oil and insulation system
    • Tap changer
    • Tank construction
    • Accessories
    • Testing requirements
    • Certification requirements
    • Transportation
    • Project-specific specifications

    For an accurate quotation, customers should provide the required kVA rating, voltage ratio, vector group, frequency, tapping range and application details.

    Contact Tirupati Transformer for a project-specific Distribution Transformer quotation.

    Why Choose Tirupati Transformer?

    Tirupati Transformer focuses on engineering, manufacturing, testing and supply of transformer solutions for industrial and commercial applications.

    Engineering-Based Manufacturing

    Transformers are designed around the required electrical and application parameters.

    Quality-Focused Manufacturing

    Material selection, core and winding construction, assembly and testing are important stages of our manufacturing process.

    Customized Transformer Solutions

    Customers can specify requirements such as rating, voltage ratio, vector group, impedance, tapping arrangement and cooling method.

    Testing & Documentation

    Applicable testing and documentation can be provided according to the transformer specification and project requirements.

    Delhi NCR Manufacturing Location

    Our manufacturing facility is located in Greater Noida, Uttar Pradesh, making us accessible to customers across Delhi NCR and North India.

    Trustworthiness — Transparent, Accountable, Supported

    • Complete Routine Test Certificate provided with every unit
    • Factory inspection invited before dispatch — clients can visit our Greater Noida facility
    • After-sales support team available post-installation
    • Standard warranty on all units
    • 24-hour quote turnaround — no hidden pricing
    • Dedicated sales engineer assigned to every project

    We purchased a 1250 kVA distribution transformer and were impressed with the timely delivery and after-sale service. — Mr. Pramod Kumar, Client

    The product quality is good with a reasonable price. I purchased a 1000 kVA transformer last month. — Mr. Rajeev Wadhwa, Client

    Distribution Transformer Manufacturer in Greater Noida

    Tirupati Transformer is based in Greater Noida, Uttar Pradesh, and serves customers looking for transformer manufacturing and supply solutions in Delhi NCR.

    Our location allows us to serve projects in:

    • Greater Noida
    • Noida
    • Delhi
    • Ghaziabad
    • Faridabad
    • Gurugram
    • Uttar Pradesh
    • Haryana
    • Rajasthan
    • Punjab
    • Delhi NCR and other parts of India

    For projects outside Delhi NCR, transportation and delivery requirements can be planned according to transformer dimensions, weight, site conditions and project schedule.

    STATES & CITIES WE SERVE

    Tirupati Transformer supplies distribution transformers Pan-India with fast dispatch from our Greater Noida manufacturing facility:

    North India: Delhi NCR | Greater Noida | Noida | Gurgaon | Faridabad | Ghaziabad | Lucknow | Kanpur | Agra | Varanasi | Meerut | Jaipur | Jodhpur | Chandigarh | Ludhiana | Amritsar | Dehradun

    West India: Mumbai | Pune | Ahmedabad | Surat | Vadodara | Nagpur | Nashik | Indore | Bhopal

    South India: Hyderabad | Bengaluru | Chennai | Coimbatore | Visakhapatnam

    East India: Kolkata | Patna | Bhubaneswar | Ranchi

    Export Markets: Kenya | Saudi Arabia | UAE | Qatar | Tanzania | Nigeria | Nepal | Bangladesh | Sri Lanka

    Frequently Asked Questions About Distribution Transformer

    Q1. What is a Distribution Transformer?

    A Distribution Transformer is an electrical transformer used to step down medium-voltage electricity to a lower voltage suitable for distribution and end-use applications.

    Q2. What is a common 11 kV Distribution Transformer voltage ratio?

    One commonly used configuration is 11 kV / 433 V. However, the required voltage ratio depends on the electrical distribution system and project specification.

    Q3. What is the difference between a Power Transformer and a Distribution Transformer?

    Power Transformers are generally used for higher-voltage transmission and substation applications, while distribution transformers are primarily used closer to consumers to step down electrical voltage for distribution.

    Q4. Which transformer is better: copper or aluminium winding?

    Both copper and aluminium can be used in transformer windings. The appropriate conductor depends on the electrical design, losses, thermal requirements, mechanical strength and project specifications.

    Q5. What affects Distribution Transformer price?

    Capacity, voltage ratio, winding material, core material, losses, accessories, tap changer, testing, specifications and transportation can all affect the final price.

    Q6. How can I choose the right Distribution Transformer?

    Start with the required kVA rating, primary and secondary voltage, vector group, impedance, tapping requirements, installation environment and load profile. A transformer manufacturer can then finalize the design.

    Q7. Does a Distribution Transformer require maintenance?

    Yes. Maintenance requirements depend on the transformer construction. Oil-immersed transformers require appropriate inspection and maintenance of oil, bushings, connections, protection devices and other components according to the manufacturer’s recommendations.

    Q8. What is the standard delivery time for a distribution transformer?

    Standard rated distribution transformer units (100 kVA to 1000 kVA) are typically dispatched within 3–4 weeks from order confirmation and advance payment. Larger ratings (1250 kVA to 5000 kVA) or custom-engineered units require 5–8 weeks. Urgent project requirements can be prioritised — contact our sales team directly at +91-9810995042.

    Q9. Can Tirupati Transformer manufacture customized transformers?

    Yes. Transformer specifications can be developed according to customer requirements, subject to technical feasibility and applicable standards.

    Q10. Where is Tirupati Transformer located?

    Tirupati Transformer is located in Greater Noida, Uttar Pradesh, and serves customers across Delhi NCR and other parts of India.

    Q11. Are Tirupati Transformers DISCOM approved?

    Yes, Tirupati Transformer units are listed on various State DISCOM approved vendor lists. Please contact us for your state-specific requirement.

    Q12. Which standards do Tirupati distribution transformers follow?

    Our distribution transformers are manufactured as per IS 1180, under ISO 9001:2015 certified quality systems and a BIS licence.

    Get a Distribution Transformer Quotation

    Looking for a reliable Distribution Transformer Manufacturer in Delhi NCR or India?

    Share your transformer requirements with Tirupati Transformer, including:

    • Required capacity
    • Primary voltage
    • Secondary voltage
    • Frequency
    • Vector group
    • Tap range
    • Impedance
    • Winding material
    • Installation location
    • Quantity
    • Required delivery schedule

    Our team can review your requirements and provide a suitable technical and commercial proposal.

    GET A FREE QUOTE → CALL NOW → WHATSAPP NOW →

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