A power transformer is a critical electrical device that steps voltage up or down for efficient transmission, distribution, and safe utilisation of electricity. In Nigeria, where industries, housing estates, hospitals, schools, and commercial hubs often need to interface with the national grid at 11kV or 33kV, a correctly specified distribution transformer is the difference between reliable power and costly downtime. At Power Solution Mall, we supply, install, commission, and maintain genuine power transformers from globally respected manufacturers. Whether you need a 500kVA power transformer for a factory, a 200kVA unit for an estate, or a compact 50kVA transformer for a small business, we provide end-to-end solutions that meet NERC, NEMSA, and international standards.
How a Power Transformer Works
Transformers operate on the principle of electromagnetic induction. An alternating current flowing through the primary winding creates a magnetic flux in a laminated core, which induces a voltage in the secondary winding. By varying the number of turns in each winding, the transformer steps voltage up (e.g., from 11kV to 33kV for long-distance transmission) or steps it down (e.g., from 33kV to 415V three-phase for local distribution). The result is an efficient, isolated power supply tailored to end-use equipment. Oil immersed power transformers use insulating oil for cooling and dielectric strength, while dry type power transformers use air cooling, making them suitable for indoor, fire-sensitive installations.
Types of Power Transformers We Supply
Distribution Transformer – The most common type for Nigerian estates, factories, and commercial buildings. Typical ratings include 100kVA, 200kVA, 300kVA, and 500kVA, with primary voltages of 33kV or 11kV and a secondary of 415V three-phase. These are usually oil immersed, outdoor units built to withstand tropical conditions.
Oil Immersed Power Transformer – Utilises mineral oil for cooling and insulation. Ideal for outdoor installations, they are rugged, cost-effective, and have a long service life when properly maintained.
Dry Type Power Transformer – Air-cooled with cast resin or vacuum pressure impregnated windings. Best for indoor applications like hospitals, data centres, and high-rise buildings where fire safety is paramount.
Step Up Transformer – Increases voltage from a lower level (e.g., generator output) to a higher transmission voltage. Used in mini-grid and embedded generation projects.
Step Down Transformer – Reduces voltage from transmission or distribution levels to usable 415V three-phase or 230V single-phase for end users. This is what most estates and businesses purchase.
Industrial Power Transformer – Heavy-duty units designed for continuous high loads in factories, manufacturing plants, and processing facilities. Often custom-built with higher efficiency ratings.
Commercial Power Transformer – Sized for office complexes, shopping malls, and hotels where load profiles are moderate but reliability is essential.
Substation Transformer – Integral to larger power infrastructure, these are installed within dedicated substations for public or private grid connections.
Single-Phase and Three-Phase Power Transformer – While distribution is predominantly three-phase, we also supply single-phase units for light loads or rural electrification.
Key Features and Benefits
High Efficiency – Our energy efficient transformers from ABB and Meksan minimise losses, lowering electricity bills over the asset’s lifetime.
Robust Construction – Tanks, cores, and windings are built to ISO and IEC standards, with hot-dip galvanised fittings to resist Nigeria’s humidity and coastal salt air.
Advanced Protection – Standard accessories include Buchholz relay, oil temperature indicator, pressure relief device, and silica gel breather. Optional transformer protection system and remote monitoring are available.
Long Service Life – With proper transformer oil filtration and maintenance, an oil immersed power transformer can serve reliably for 25–30 years.
Customisable Ratings – We source transformers in popular sizes—15kVA to 500kVA and beyond—configured exactly to your primary and secondary voltage requirements.
Genuine Manufacturer Warranty – All units carry full factory warranty, supported locally through authorised service partners.
Applications Across Nigeria
Our power transformers serve a wide spectrum of clients:
Housing Estates and Residential Communities – 200kVA or 300kVA step-down transformers providing 415V three-phase supply from the 11kV or 33kV grid.
Factories and Manufacturing Plants – Industrial power transformers in 500kVA and larger for heavy machinery, motor loads, and process lines.
Hospitals and Healthcare Facilities – Dry type or oil immersed units sized for critical loads with N+1 redundancy options.
Schools, Universities, and Research Institutes – Reliable distribution for hostels, labs, and workshops.
Hotels and Hospitality – 100kVA–300kVA transformers ensuring guest comfort without interruption.
Commercial Buildings and Malls – Compact, efficient units for shops, offices, and common areas.
Government and Public Utilities – Substation transformers and distribution units for rural electrification projects.
Agricultural and Agro-Processing – Transformers for irrigation pumps, cold rooms, and processing equipment.
Religious Centres – Auditorium and auxiliary building supply.
Top Power Transformer Brands Available
We are an authorised power transformer dealer Nigeria for world-class brands:
ABB Power Transformer – Global leader in transformer technology, offering high efficiency, robust design, and local support. When you buy ABB transformer Nigeria, you invest in decades of reliability.
Meksan Power Transformer – Turkish-built, IEC-compliant units that combine quality with competitive pricing. A top choice for industrial and commercial applications.
Astor Power Transformer – Known for durable, tropicalised distribution transformers widely used in Nigerian estates and factories.
Elsan Transformer – Reliable, cost-effective solutions for small to medium power demands.
TSTY Transformer – Produces efficient, factory-tested oil immersed and dry type transformers with excellent warranty terms.
Every unit is original, factory-tested, and supplied with full documentation.
Power Transformer Price in Nigeria
The power transformer price in Nigeria varies by capacity, type, and brand. As a guide:
15kVA Power Transformer: ₦1,500,000 – ₦2,500,000
50kVA Power Transformer: ₦2,800,000 – ₦4,500,000
100kVA Power Transformer: ₦4,500,000 – ₦7,000,000
200kVA Power Transformer: ₦7,500,000 – ₦11,000,000
300kVA Power Transformer: ₦10,000,000 – ₦15,000,000
500kVA Power Transformer: ₦16,000,000 – ₦25,000,000+
These prices are inclusive of standard accessories but exclude installation, transformer cable termination, and commissioning. Costs are heavily influenced by exchange rates, so contact us for a current power transformer quotation Nigeria. We offer competitive rates, especially for genuine ABB and Meksan units, and our technical team ensures you get the exact specification for your site.
How to Choose the Right Power Transformer – A Nigerian Buyer’s Guide
Determine Your Total Connected Load (kVA) – Conduct a load survey. Sum all motor, lighting, HVAC, and future expansion loads. Choose a transformer with at least 20% spare capacity.
Specify Primary and Secondary Voltages – Common Nigerian grid interfaces are 33kV or 11kV primary, and 415V three-phase secondary (33/0.415kV transformer or 11/0.415kV transformer). Confirm your local DisCo’s available voltage.
Select Type Based on Location – Outdoor estates and factories typically use oil immersed power transformers. Indoor or fire-sensitive areas should use dry type power transformers.
Factor in the Environment – If near the coast (Lagos Island, Lekki, Port Harcourt), request anti-corrosion paint and stainless steel fittings. In dusty areas, ensure sealed tank design with adequate cooling.
Verify Brand and Warranty – Insist on a genuine ABB transformer, Meksan, Astor, or other reputable brand with a valid warranty. We provide manufacturer certificates with every sale.
Plan for Installation and Commissioning – Transformer installation Nigeria requires expertise. Budget for proper plinth construction, earthing, transformer protection system, and DISCO inspection.
Consider After-Sales Support – A transformer is a 25-year asset. Ensure your supplier offers transformer maintenance Nigeria, transformer oil filtration Nigeria, and emergency transformer repair.
Installation and Commissioning by Certified Professionals
Installing a power transformer is not a plug-and-play task. Our certified engineers handle site preparation, plinth construction, offloading and positioning, transformer cable termination, earthing, protection relay setting, DISCO liaison, and full commissioning. We test winding resistance, insulation resistance, turn ratio, oil dielectric strength, and more. Our transformer installation contractor teams operate nationwide: Lagos (Ikeja, Lekki, Victoria Island, Apapa), Abuja, Port Harcourt, Ibadan, Kano, Enugu, Benin City, Ogun, and beyond. We also offer transformer testing services Nigeria and transformer commissioning Nigeria as standalone services for clients who purchase elsewhere but need expert support.
Maintenance and Repair Services
Regular maintenance prevents catastrophic failure and extends transformer life. Our services include:
Periodic transformer oil filtration and replacement
Silica gel breather renewal
Winding insulation testing
Thermal imaging for hot spots
Buchholz relay and pressure relief device functional testing
On-load tap changer servicing (if fitted)
Emergency transformer repair for fault conditions
We offer annual maintenance contracts for estates, factories, and commercial buildings. Our transformer maintenance cost is transparent and competitive.
Warranty Information
All power transformers from Power Solution Mall come with the manufacturer’s warranty. Standard coverage is 12–18 months from commissioning or 24 months from delivery, whichever occurs first. Brands like ABB and Meksan also provide a design life guarantee when installed and maintained according to their guidelines. We facilitate all warranty claims and supply genuine power transformer spare parts.
Common Mistakes to Avoid When Buying a Power Transformer
Undersizing the transformer to save cost, leading to overload, overheating, and premature failure.
Ignoring the local grid voltage – buying an 11kV transformer when the line is 33kV (or vice versa) renders it unusable.
Purchasing used or refurbished transformers without verified test certificates.
Neglecting proper earthing and protection, which voids warranty and creates a safety hazard.
Skipping professional installation – incorrect tap settings or poor cable terminations cause immediate faults.
Choosing the cheapest bid without verifying brand authenticity; many fake ABB and Meksan units circulate.
Why Power Solution Mall Is Your Best Power Transformer Partner
Genuine Products – We are a trusted power transformer supplier Nigeria, offering 100% original ABB, Meksan, Astor, Elsan, and TSTY transformers with factory test reports.
Competitive Power Transformer Price in Nigeria – Our relationships with manufacturers allow us to offer sharp pricing without compromising quality.
Nationwide Delivery – We deliver to all 36 states: Lagos, Abuja, Port Harcourt, Ibadan, Kano, Kaduna, Enugu, Benin City, Ogun, Lekki, Ikeja, and beyond. Our logistics team handles heavy haulage and offloading.
Professional Installation and Commissioning – From plinth to power-on, our certified engineers ensure compliance with DISCO and safety standards.
After-Sales Support – We provide transformer maintenance Nigeria, testing, oil filtration, and emergency repairs.
Bulk Purchase & Corporate Supply – We handle multiple transformer orders for estates, industrial parks, government agencies, and agricultural schemes with structured delivery schedules.
Procurement Support – If your organisation needs a formal transformer procurement Nigeria process, we provide quotations, technical specifications, and bid documentation.
Retail Sales – Even a single 50kVA transformer for a small factory receives the same expert attention and after-sales care.
Get Your Power Transformer Today
Stop guessing “how much is a 500kVA transformer in Nigeria” or “which transformer is best for factory” on forums. Call Power Solution Mall for a free site consultation and a custom power transformer quotation Nigeria. Whether you need to buy a 100kVA transformer for a new estate in Ibadan, a 300kVA unit for a hospital in Enugu, or a genuine ABB 500kVA for an industrial complex in Lekki, we deliver quality, reliability, and peace of mind.
FAQs
What is the price of a 500kVA power transformer in Nigeria?
A genuine 500kVA power transformer ranges from ₦16 million to ₦25 million, depending on brand and specifications. Contact us for an exact quote.
How much is a 300kVA transformer?
A 300kVA power transformer typically costs between ₦10 million and ₦15 million. Prices fluctuate with exchange rates, so always request a current quotation.
Where can I buy an original ABB transformer in Nigeria?
Power Solution Mall is an authorised power transformer dealer Nigeria for ABB and other top brands. We supply brand-new, factory-tested ABB transformers with full warranty.
Which transformer is best for a factory?
An industrial power transformer, usually 300kVA to 500kVA, oil immersed, with high efficiency and robust protection, is ideal. We help you size it accurately based on your machinery load.
Do you install power transformers?
Yes, we offer complete power transformer installation Nigeria services, including site preparation, DISCO liaison, cable termination, and commissioning.
How often should transformer oil be changed or filtered?
Oil should be tested annually. Transformer oil filtration or replacement is typically needed every 5–7 years, or sooner if test results show degradation.
Do you sell 33/0.415kV transformers?
Yes, the 33/0.415kV transformer is a standard distribution transformer we supply for estates and industries connected to 33kV grid lines.
What is the warranty on power transformers?
Warranty is typically 12–18 months from commissioning or 24 months from delivery. We back all claims with manufacturer support.
Can I buy a 100kVA transformer for an estate in Lagos?
Certainly. We supply and install 100kVA power transformers across Lagos, including Lekki, Ikeja, and Ibadan, with full DISCO coordination.
How do I choose between dry type and oil immersed transformer?
For outdoor installations, choose oil immersed power transformers. For indoor, fire-sensitive environments, select dry type power transformers. We can advise after a site assessment.
Do you provide transformer maintenance services?
Yes, we offer transformer maintenance Nigeria on annual contract or per-service basis, including oil testing, filtration, and general inspection.
What accessories come with a power transformer?
Standard accessories include oil level indicator, temperature gauge, Buchholz relay, pressure relief device, silica gel breather, and drain valve. Additional accessories can be added.
How long does it take to deliver and install a transformer?
Delivery takes 2–4 weeks from order confirmation (subject to stock). Installation and commissioning typically require 5–10 working days after civil works are ready.
Can I get a transformer quotation online?
Yes, we provide a detailed power transformer quotation Nigeria upon receiving your load details and site location. WhatsApp or call us today.
Do you supply transformers for hospitals and schools?
Yes, we supply commercial and distribution transformers sized for hospitals, schools, and other institutional buildings.