What is a Distribution Transformer?
A distribution transformer is an electrical device that steps down high voltage (11kV or 33kV) from the primary line to safe usable voltage (433V three-phase or 230V single-phase) at the consumer end. These units are installed in residential colonies, industrial zones, rural electrification projects, and large commercial complexes across India. As experienced manufacturers, we produce distribution transformer units ranging from 100 kVA to 5000 kVA to meet every project requirement.
Features of Our Distribution Transformers
- All our units comply with Bureau of Indian Standards IS 1180 — meeting all required parameters for no-load loss, load loss, and insulation performance.
- We use Cold Rolled Grain Oriented (CRGO) silicon steel to minimize iron losses — reducing electricity costs and extending the operational life of every distribution transformer significantly.
- Our oil cooled units use mineral oil for cooling and insulation — ideal for outdoor installations across India’s varying climate conditions throughout the year.
- 100 kVA, 160 kVA, 200 kVA 250 kVA, 300 kVA, 400 kVA 500 kVA, 750 kVA, 1000 kVA 1200 kVA, 1500 kVA, 2000 kVA 3000 kVA, 4000 kVA, 5000 kVA
- 11kV / 433V — Most common 33kV / 433V 6.6kV / 433V Custom ratios available on request
Applications of Distribution Transformers
- Industrial Plants — Stable power supply for heavy machinery and production lines
- Housing Colonies & Apartments — Safe and reliable residential electricity supply
- Rural Electrification — Reliable power delivery for remote villages under government schemes
- Commercial Buildings & Malls — Uninterrupted power supply for offices and retail
- Solar & Renewable Energy Projects — Inverter duty applications for clean energy
- Government & DISCOM Projects — Approved for state utility tender requirements
Why Choose Tirupati Transformer?
When selecting a reliable distribution transformer manufacturer in India, clients choose Tirupati Transformer for our quality, certifications, and pan-India service network. Learn More About Tirupati Transformer 12+ years of experience in transformer manufacturing ISO 9001 Certified manufacturing facility IS 1180 & BIS Approved products Pan India delivery — Gujarat, Maharashtra, Rajasthan, Delhi NCR, UP, MP Custom engineering as per project specifications Standard lead time of 4 to 8 weeks Dedicated after-sales support and maintenance guidance Also explore our Power Transformer range built for heavy industrial and utility applications.
Distribution Transformer Price — Get a Quote
The price of a distribution transformer depends on several key factors: kVA Rating — Higher capacity increases overall cost Voltage Ratio — 11kV or 33kV primary winding Cooling Type — Oil cooled or dry type Special Features — OLTC, metering cubicle, earthing arrangement Order Quantity — Bulk orders qualify for discounted pricing Contact us today and receive a competitive quote within 24 hours.
Frequently Asked Questions (FAQs)
Q1. Who are the leading distribution transformer manufacturers in India? Tirupati Transformer is among the top rated distribution transformer manufacturers in India — with IS 1180 certification, ISO 9001 quality systems, and 12+ years of industry experience. Q2. What is the difference between a distribution transformer and a power transformer? A distribution transformer steps down voltage at the consumer end (11kV to 433V), while a power transformer handles high-voltage transmission (220kV, 400kV) across the national grid. Distribution units are smaller and located closer to end users. Q3. Where is a 100 kVA transformer used? A 100 kVA distribution transformer is commonly used in small factories, multi-storey residential buildings, and rural feeder points where electrical load is approximately 70–80 kW. Q4. How long does an oil cooled transformer last? With proper maintenance, a quality oil cooled distribution transformer delivers 25 to 30 years of reliable service. Q5. Are Tirupati transformers DISCOM approved? Yes, our units are listed on various State DISCOM approved vendor lists. Please contact us for your state-specific requirement.
Contact Us Today
Looking for a trusted distribution transformer manufacturer for your next project? Tirupati Transformer is your reliable partner for quality, speed, and service.
Routine Measurements & Tests
Routine tests shall be carried out on all Best Distribution Transformer Manufacturers conducted accordance with standards as applicable. The following routine measurements and tests shall be carried out: 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 Fittings and Accessories
We offer following fittings and accessories with all transformers:
Rating & Diagram Plate Earthing Terminals Lifting Lugs MOLG Bottom filter cum drain valve with Plug Top filter valve with Plug Pulling Lugs Flanged Rollers Thermometer Pocket Silica Gel Breather (with silica gel) Pressure Relief Valve Cover Lifting Lugs Inspection Window Air Release Plug
Some More Optional Accessories are:
On Load Tap Changer RTCC Panel Bucholtz Relay Oil Temperature Indicator Winding Temperature Indicator with Trip Contact Marshaling Box HV Termination – Cable Box LV Termination – Cable Box
TECHNICAL SPECIFICATION
Phase Three Standards IS1180, IS2026, IEC60076 Power Ratings 100 KVA to 5000 KVA Winding Material Copper & Aluminium Tap Switch On Load/Off Load Tap Changer Vector Group Dyn11 Frequency 50 Hz Tapping As Per Customer Need Type Oil Immersed, Hermetically sealed (Bolted Type) Cooling ONAN HV and LV Bushings Outdoor/ Indoor Type Rated Voltage HV Upto 33 KV LV 0.433 V – 0.250 V Connection HV Delta LV Star ( Neutral Brought Out)