Reliable, Safe, and High-Performance 63 kVA Transformers
OMEK 63 kVA transformers are engineered using high-grade materials and advanced technologies. Fully compliant with IEC international standards, our products are certified under ISO 9001, CE, and ASTA.
OMEK is a trusted transformer manufacturer in China, with an annual sales volume of 5000+ units. We are dedicated to providing you with high-quality products at competitive prices. As long as you purchase our products, our after-sales team will always be at your service. You can always trust our products.
Why is it “63 kVA”?
When you see the term “63 kVA transformer”, you might wonder, why is it 63 kVA, not 60 kVA, not 70 kVA? The reason is in the standardized capacity grading system. It follows international and China’s national standards. The number is graded by a fixed ratio, and 63 kVA is exactly the grade between 50 kVA and 80 kVA. All factories use this standard to make their products, no need to make any change to the components, which brings a lot of convenience.
Specifications Overview
The specific information for each product type is clearly indicated on the nameplate.
| Brand | OMEK Power 63 kVA transformer |
| Phase | 3 phase, Single phase |
| rating | 63 kVA |
| Insulation Type | Dry-type, Oil-immersed |
| Core | Laminated Core/Wound Core |
| Winding Material | Copper / Aluminum |
| Primary voltage(input voltage) | ≤ 35 kV |
| Secondary voltage(output voltage) | 0.4 kV |
| Ambient temperatue | ≤ 40 ℃ |
| Impedance Voltage (%) | 4-4.5 |
| Tap Range | ± 2 * 2.5 ± 5 |
| No Load Loss | Minimum 0.05 kW (Customizable) |
| On Load Loss | 1.1 kW (75 ℃） |
| Cooling Type | AN / AF / ONAN / ONAF |
| total weight | 300-600 kg (Customizable) |
| dimensions | Customizable |
| connections | Dyn11, Yyn0，Yzn11 |
63 kVA Product Categories
OMEK offers a series of 63 kVA distribution transformers.
63 kVA Oil-Immersed Transformer
Provides enough capacity for small communities, villages, and light industrial customers while keeping the cost low.
63 kVA Dry-Type Transformer
Matches the power demand of small commercial facilities, equipment rooms, and residential buildings, without requiring a large transformer.
-Low no-load loss and high efficiency-Ideal for energy-saving outdoor distribution
-3D wound core structure
-Provides balanced magnetic flux, lower noise, and improved efficiency
-Light in weight and easy to install,
-Ideal for rural power supply, street lighting, and small loads.
-Safe, fire-resistant
-Maintenance-free
-suitable for indoor commercial and industrial environments
Our Price
Factors Affecting Price
Transformer Types：Dry-type or oil-immersed transformers have different manufacturing costs. 3-phase transformers usually have higher prices than single-phase ones.
Input/Output Voltage Ratings: Higher or customized voltages may increase production cost.
Raw Materials: The prices of raw materials such as core materials, winding conductors, and insulation materials have a direct impact on the cost of a transformer.
Quantity: If you make bulk purchase, you can enjoy discounted prices.
Need the Latest Transformer Price?
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Our team will reply within 12 hours with detailed information.
Product Advantages
Brand RecognitionWe are a trusted company and care about our brand reputation. We want to maintain long-term partnerships with customers. You can rest assured about our after-sales service.
Product QualityAll of our products and individual components undergo rigorous tests and are capable of operating stably for a long period of time. If you want to know more details about our products, please get in touch with us.
CustomizationWe produce transformers at 3 energy levels for your needs. You can also choose the iron core materials, cooling types, pad-mounted or pole-mounted, three-phase or single-phase.
International CertificationsOMEK proudly holds multiple certifications both in China and internationally, which represents the recognition from Chinese and international institutions.
Where It’s Used
Industrial ApplicationsSmall factories and manufacturing plants
Construction sites
Cooling and HVAC systems
Commercial ApplicationsCommercial buildings and office spaces
Retail stores
Hotels and restaurants
Residential ApplicationsResidential communities or housing areas
Standalone houses or villas
Temporary residential quarters
Public InfrastructureSchools and hospitals
Street and roadway lighting
Power distribution networks
Agricultural ApplicationsFarms and agricultural facilities
Farm electrical equipment
Farmland irrigation system
Energy & Renewable Energy SystemsSolar power systems
Wind power systems
Backup power systems
Quality Control
We understand that safety is a key concern for our customers. Our strict quality control processes make sure that every 63 kVA transformer produced in our factory meets the highest performance, reliability, and safety standards in the industry.
Routine Tests
Dielectric Oil Test
Winding Resistance Measurement
Voltage Ratio Measurement and Vector Group Verification
Short-Circuit Impedance and Load Loss Measurement
No-Load Loss and No-Load Current Measurement
DC Insulation Resistance Measurement (Winding-to-Ground and Inter-Winding)
Type Tests
Insulation Type Test
Temperature Rise Test
Sound Level Measurement
Short-Term Overload Capacity Test (for Distribution Transformers)
Special Tests
Dielectric Loss Tangent (tanσ) Measurement of Insulation System Capacitance
Short-Circuit Withstand Test
Frequency Response Measurement
Get a Quote
Looking for the best price for a 63 kVA transformer? Fill out the form below and our team will contact you with a customized quotation.
Customer Reviews
Let’s take a look at what our partners have said.
“We have been using OMEK’s 63 kVA transformers in our place for over a year. They run smoothly, with no overheating issues. Good value for money!”
— Industrial Customer, Malaysia
“The transformer meets international standards exactly as they said. The sales team provided a lot of assistance throughout the process.”
— Commercial Building Contractor, UAE
“The price is really good. They gave clear installation guidance and quick after-sales supports. Highly recommended!”
— Electrical Engineer, South Africa
“We’ve been using OMEK’s 63 kVA transformers for six months in our factory. They work well and have significantly reduced our electric costs. We’re very happy with it!”
— Manufacturing Facility, India
“We bought this transformer for a commercial project. It works better than we hoped. OMEK’s service is great too. They offer lots of guidance.”
— Construction Contractor, Brazil
“The product is worth the cost. It’s easy to install, and it doesn’t produce much noise, which is very important for me.”
—Residential & Commercial Complex, Canada”
Related Products
FAQs
Have any questions? We’re here to help you out.
A 63 kVA transformer can handle a load up to its rated capacity of 63 kVA. To calculate the rated current, you need to know whether it is single-phase or three-phase, as well as the secondary voltage.
For a three-phase transformer with 400 V secondary voltage, the rated current is approximately 91 A.
The real power it can supply depends on the load power factor, With PF between 0.8 and 1.0, the real power ranges from 50 kW to 63 kW.
For a 63 kVA single-phase transformer with a 400 V secondary voltage, the rated current:
I=63×1000/400≈157.5A
With a load power factor of 0.8, the real power output is:
P=S×PF=63×0.8=50.4 kW
The size (dimensions) of a 63 kVA transformer can vary depending on several factors, including:
1. Types of Transformer (oil-immersed or dry-type)
Oil-immersed units are usually smaller because the oil improves cooling efficiency.
Dry-type units are generally larger due to air cooling and additional insulation.
2. Voltage Ratings (primary and secondary voltages)
For the same kVA rating, a higher voltage transformer usually requires more space for insulation and electrical separation.
3. Core Materials (CRGO, Amorphous Alloy, 3D Core, etc.)
Amorphous cores may require a slightly larger volume.
3D cores offer a more compact structure with reduced magnetic flux leakage
4. Cooling Methods (ONAN, ONAF, AN, AF, etc.)
Forced-air or forced-oil cooling systems add radiators, fans, or pumps, increasing the size.
To inquire about the price of OMEK transformers, please contact us. We will provide you with a detailed price list for your selection.
The loss of a 63 kVA transformer generally refers to the energy dissipated during operation. These losses can be broadly categorized into core losses (also called no-load losses) and copper losses (also called load losses). The specific losses depend on factors such as the design, voltage rating, and efficiency of the transformer.
Single-Phase Transformer Rated Current Formula：
I = rated current (A)
kVA = transformer capacity
V = rated voltage (V)
Example: 63 kVA, 230 V single-phase system.
I=63×1000/230≈274 A
So in this case, it can handle about 274 A.
Three-Phase Transformer Rated Current Formula：
I = rated current (A)
kVA = transformer capacity
V_line = line-to-line voltage (V)
Example: 63 kVA, 400 V three-phase system.
I=63×1000/(√3×400)≈91 A
So the transformer can safely supply around 91 A per phase.
A 63 kVA transformer does not have a fixed power factor. Its power factor depends on the connected load. The connected load typically ranges from 0.8 to 1.0 in most applications.
Transformers are rated in kVA, which has nothing to do with power factor. The power factor is determined by the type of equipment connected to the transformer, not by the transformer itself.
Example:
– If the load power factor is 0.8, the real power (kW) = 63 × 0.8 = 50.4 kW.
– If the load power factor is 1.0, the real power (kW) = 63 kW.