Power Transformer Manufacturer in India – Tirupati Transformer

Tirupati Transformer is a Power Transformer manufacturer in India, based in Greater Noida, Delhi NCR, supplying oil-immersed units up to 10 MVA with voltage levels up to 33 kV. Established in 2014, we provide transformer solutions for industrial plants, substations, power generation, renewable energy projects, EPC contractors and other high-capacity electrical applications across India and international markets.

Every unit is engineered to project requirements, with ONAN/ONAF cooling, OLTC/OCTC tap changers, RTCC panels, AVR and customized accessories. Our focus is reliable operation, efficient performance, correct protection and long-term serviceability.

Looking for a Power Transformer for your project? Share your MVA rating, voltage requirement and application with our team for a project-specific quotation.

What is a Power Transformer?

A Power Transformer is a static electrical device that transfers electrical energy between circuits through electromagnetic induction while changing the voltage level. It is used in power generation plants, substations, transmission networks, renewable energy projects and large industrial electrical systems.

A Power Transformer is selected based on the electrical requirements of the installation: MVA rating, HV and LV voltage, frequency, vector group, impedance, cooling system, tap-changing requirement, insulation level, load characteristics, ambient conditions, short-circuit requirements and applicable technical standards. Selecting the correct specification is essential for safe, efficient and dependable electrical operation.

Power Transformer Manufacturer in India

Tirupati Transformer manufactures and supplies oil-immersed Power Transformers from its manufacturing base in Greater Noida, Uttar Pradesh, for industrial, utility, infrastructure and renewable energy projects. Configurations include oil-immersed construction, ONAN cooling, ONAF cooling, OLTC, OCTC, RTCC panel, Automatic Voltage Regulator (AVR), CRGO core, copper windings, radiator banks, temperature indicators, oil-level monitoring, pressure relief protection and other project-specific accessories.

For lower-capacity distribution applications, explore our Distribution Transformer range. For industrial heating applications, see our Furnace Transformer.

Key Features of Tirupati Power Transformers

Continuous-Duty Design — Every unit is designed for continuous-duty electrical applications where dependable voltage transformation and thermal performance matter. Design accounts for core losses, winding losses, insulation, cooling, loading conditions and operating environment.

OLTC and OCTC Tap Changer Options — We supply units with On-Load Tap Changer (OLTC) or Off-Circuit Tap Changer (OCTC) configurations. An OLTC regulates voltage while the transformer stays energized; an OCTC is adjusted when the transformer is isolated from supply. Where automatic voltage regulation is required, an RTCC panel with AVR is incorporated.

Nitrogen Infused Fire Protection System (NIFPS) — Available as an optional fire-protection feature for suitable transformer and substation installations.

CRGO Core and Copper Windings — Our units use Cold Rolled Grain Oriented (CRGO) electrical steel for the core and copper conductors for windings. Core and winding design directly influence efficiency, losses, temperature rise and operating performance.

ONAN and ONAF Cooling — Standard units use ONAN (Oil Natural Air Natural) cooling. ONAF (Oil Natural Air Forced) cooling uses fans to increase heat dissipation for higher-rating or higher-loading applications.

Standard Power Transformer Fittings and Accessories

Oil Temperature Indicator (OTI), Winding Temperature Indicator (WTI), Magnetic Oil Level Gauge (MOG), Pressure Relief Device (PRD), Marshalling Box, Forced Fan Cooling, OLTC and RTCC Panel with AVR, Bi-directional Rollers, Radiator Valves, Dehydrating Breather, Current Transformer (CT), Additional Neutral Terminal. The final accessory list is determined by rating, voltage class and protection philosophy.

Power Transformer Testing and Quality Assurance

Testing verifies the electrical and mechanical characteristics of every unit before dispatch. Routine tests include winding resistance measurement, voltage ratio measurement, polarity verification, vector group verification, impedance measurement, load-loss measurement, no-load loss and current measurement, separate-source voltage withstand test, induced overvoltage withstand test, bushing checks, oil leakage test, pressure relief device test, tap changer test, oil tests and dielectric tests. Customers can request technical datasheets, drawings, routine test reports and quality documentation during technical approval.

Standards

Every unit is designed and tested to IS 2026, IEC 60076, applicable BIS requirements, project-specific utility specifications and EPC technical specifications. Refer to Bureau of Indian Standards (BIS) and International Electrotechnical Commission (IEC) for the official standards.

Applications

Power Generation Plants — Generator step-up transformers and auxiliary electrical systems in thermal, hydro, gas-based and captive power projects.

Grid Substations — Core equipment in grid, utility and industrial substations and transmission systems.

Solar and Wind Energy Projects — Transfer power from generation equipment to the high-voltage network. Tirupati Transformer also supplies Solar Inverter Duty Transformers for renewable applications.

Steel, Cement and Mining Industries — Steel plants, cement plants, mining projects, metal processing and heavy manufacturing internal distribution networks.

Captive Power and EPC Projects — Captive generation systems use step-up or step-down transformers as part of their electrical balance of plant. EPC contractors and infrastructure developers specify these units based on detailed technical requirements — Tirupati Transformer supports rating, voltage ratio, cooling, tap changer, accessories, testing and documentation for such projects.

How to Choose the Right Power Transformer

1. Determine the MVA Rating — Base this on present electrical load plus expected future expansion.
2. Confirm HV and LV Voltage — Define primary and secondary voltage and the required tap range.
3. Select the Cooling System — ONAN is commonly used for suitable applications, while ONAF can be considered where additional heat dissipation is required.
4. Select OLTC or OCTC — OLTC regulates voltage while energized; OCTC is adjusted during shutdown.
5. Define Protection Requirements — Temperature monitoring, oil-level indication, pressure relief, Buchholz protection where applicable, control panels, alarm and trip functions.
6. Review Testing Requirements — Technical datasheet, guaranteed losses, general arrangement drawing, routine test requirements, certification and inspection requirements.
7. Compare Total Cost of Ownership — No-load losses, load losses, efficiency, maintenance, spare parts, service support, testing, transportation and warranty terms — not just the initial purchase price.

Power Transformer Price in India

Price varies by MVA rating, HV/LV voltage, voltage class, conductor configuration, CRGO core design, OLTC or OCTC, ONAN or ONAF cooling, accessories, protection and control equipment, testing, transportation, installation and project-specific customization. A single standard price cannot represent every configuration — request a project-specific quote with your MVA, HV/LV voltage, quantity, application, OLTC/OCTC requirement, cooling requirement and delivery location.

Power Transformer vs Distribution Transformer

For distribution-level requirements, explore our Distribution Transformer range.

Manufacturing and Quality Assurance

At Tirupati Transformer, manufacturing covers engineering, core and winding preparation, tank fabrication, assembly, oil processing, testing and final inspection against the approved specification. Customers can request technical datasheets, general arrangement drawings, transformer schematics, routine test reports, technical specifications and inspection documentation.

Why Choose Tirupati Transformer

• Direct Manufacturer — Manufactured from our base in Greater Noida, Uttar Pradesh, serving customers across India and international markets.
• Established Since 2014 — Serving industrial and infrastructure transformer requirements for over a decade.
• Project-Specific Engineering — Every requirement is evaluated on rating, voltage, cooling, tap-changing, protection and application.
• Standards-Focused Manufacturing — Built to IS 2026 and applicable technical standards.
• Pan-India Supply — Serving Delhi NCR, Uttar Pradesh and other major industrial regions.
• Export Support — See our Transformer Exporter from India page.
• Technical and After-Sales Support — Selection, testing, commissioning and after-sales support.

Power Transformer Manufacturer in Greater Noida, Delhi NCR

Tirupati Transformer is based in Greater Noida, Uttar Pradesh, serving Greater Noida, Noida, Delhi, Ghaziabad, Faridabad, Gurgaon, Meerut, Bhiwadi, Panipat, Sonipat and other industrial regions across India.

Frequently Asked Questions

Q1. What is a Power Transformer?

Ans: A static electrical device that transfers electrical energy between circuits while changing voltage level through electromagnetic induction — used in power generation, substations, transmission systems and large industrial applications.

Q2. What is the maximum capacity of Power Transformers supplied by Tirupati Transformer?

Ans: Up to 10 MVA, with voltage levels up to 33 kV, subject to the applicable product and project specification.

Q3. What is a Power Transformer used for?

Ans: Power generation plants, grid substations, industrial facilities, captive power projects, renewable energy installations and large electrical infrastructure.

Q4. Do you supply OLTC and OCTC Power Transformers?

Ans: Yes — with OLTC or OCTC tap-changing arrangements; RTCC panels and AVR systems can be added where required.

Q5. What cooling systems are available?

Ans: ONAN cooling for standard applications; ONAF cooling with forced-air fans for higher-rating or higher-loading applications.

Q6. What standards apply?

Ans: IS 2026, IEC 60076, BIS requirements and project-specific technical specifications.

Q7. What information is required for a Power Transformer quotation?

Ans: To prepare a quotation, share the required MVA rating, HV/LV voltage, frequency, quantity, application, OLTC/OCTC requirement, cooling arrangement, delivery location and project specification, if available.

Q8. How do I choose the correct MVA rating?

Ans: Base it on present and expected future load, operating conditions, voltage requirements, loading criteria and overall electrical system design.

Q9. What is the price of a Power Transformer in India?

Ans: It depends on MVA rating, voltage class, core and winding design, tap changer, cooling system, accessories, testing and customization — contact us for a project-specific quotation.

Q10. What is the typical delivery time?

Ans: It depends on MVA rating, voltage class, customization and testing requirements, and is confirmed against the approved technical and commercial specification.

Q11. Can Tirupati Transformer manufacture customized units?

Ans: Yes — rating, voltage, cooling, tap changer, protection and accessories can be customized, subject to engineering feasibility.

Q12. Do you supply across India?

Ans: Yes — Delhi NCR, Uttar Pradesh and major industrial regions across India.

Q13. Does Tirupati Transformer export?

Ans: Yes — for export requirements, contact our team with project specifications and destination details.

Get a Power Transformer Quote from Tirupati Transformer

Looking for a reliable Power Transformer manufacturer in India for your industrial plant, substation, renewable energy project, captive power plant or EPC project?

Tirupati Transformer can help you evaluate the appropriate transformer configuration according to your electrical requirements.

Send us your requirement:

• MVA rating
• HV voltage
• LV voltage
• Application
• OLTC/OCTC
• Cooling requirement
• Quantity
• Delivery location

Our team will review your requirement and help you move toward an appropriate technical and commercial solution. Request a Power Transformer Quote

• Measurement of winding resistance
• Measurement of voltage ratio and check of polarity and vector group
• Measurement of impedance voltages
• Measurement of load losses
• Measurement of no load losses and no load current
• Measurement of harmonics induced overvoltage withstand test
• Separate source voltage-withstand tests on HV and LV windings
• Bushing routine tests
• Oil Leakage Test
• Relief Device Test
• Dielectric Routine Tests
• Galvanizing Tests
• Magnetic Balance Tests
• Induced over voltage withstand Tests
• Tap changer Tests
• Oil Tests.

• Oil Temperature Indicator (OTI)
• Winding Temperature Indicator (WTI)
• Magnetic Oil-level Gauge (MOG)
• Pressure Relief Device (PRD)
• Marshalling Box
• Forced Fan Cooling
• OLTC & RTCC Panel with AVR
• Bi-directional Rollers
• Radiator Valves
• Dehydrating Breather
• Current Transformer
• Additional Neutral Terminal.