China 75 kVA Transformer Manufacturer
OMEK Power is a professional 75 kVA pad mount and pole mounted transformer factory in China.
In addition to meeting your requirements for the installation method, our 75 kVA transformer can also satisfy your needs for different cooling methods – designed as dry type and oil filled type.
To meet your power demands of electrical loads, OMEK also supplies 75kva 3 phase transformer and 75 kva single phase transformer for you.
Flexible customization is one of OMEK Power’s key strengths. Send us your drawings and requirements right now, and contact us for customization!
75 kVA Transformer Types and Specifications
75 kVA 3 Phase Pad Mounted Transformer (Oil Type)
This type is very suitable for outdoor use. It can be designed in an American style or European style per your requirement. The overall dimension is 800 × 750 × 910 mm, which has a footprint of about 0.60 m². OMEK recommends the ground size for this 75 kva transformer be around 1.32 m².
S11-M-75/10 3 Phase Oil-Immersed Distribution Transformer Specifications
| Parameter | Value |
|---|---|
| Rated capacity | 75 kVA |
| High voltage | Can be customized |
| Tap range | ±2×2.5; ±5 |
| Low voltage | Can be customized |
| Connected group label | Dyn11, Yyn0, Yzn11 |
| No‑load loss | 165 W |
| Load loss (75℃) | 1275/1190 W |
| No‑load current | 1.2 % |
| Impedance voltage | 4 % |
| Overall dimension (L × w × h) | 800 × 750 × 910 mm |
| Total weight | 450 kg |
75 kVA Single Phase Pole Mounted Transformer (Oil Type)
75 kVA overhead transformers are very suitable for scattered residential users in rural and suburban areas. They are also used outdoors. It is hermetically sealed with a 3.5 short circuit impedance. Supply an output of single phase electricity.
D14-M(R)-75/10 Single Phase Oil-Immersed Distribution Transformer
| Parameter | Value |
|---|---|
| Rated capacity | 75 kVA |
| High voltage | Can be customized |
| Tap range | ±2×2.5; ±5 |
| Low voltage | Can be customized |
| Connected group label | li0, li6 |
| No‑load loss | 122 W |
| Load loss (75℃) | 1016 W |
| No‑load current | 0.6 % |
| Short circuit impedance | 3.5 % |
| Overall dimension (L × W × H) | 630 × 680 × 1190 mm |
| Mounting dimentions (L × W) | 300 × 450 |
75 kVA Dry Type Transformer
The dry type 75 kva transformer is mainly installed indoors, such as power distribution rooms, basements, office buildings, hospitals, data centers, shopping malls, etc. Fire resistance and high safety are what make them outstanding.
It is case resin insulated, Dyn11 connection, air‑natural (AN) cooling. This 75 kva dry type transformer with a 1000*1140*890 overall dimension has a larger volume than the oil filled type. Besides, the cost is a light higher than the 75 kVA oil filled transformer.
| Parameter | Value |
|---|---|
| Rated capacity | 75 kVA |
| High voltage | Can be customized |
| Tap range | ±2×2.5 / ±5 |
| Low voltage | 0.4 kV |
| Connected group label | Dyn11 |
| No‑load loss | 252 W |
| Load loss‑100℃(130℃‑B) | 1074 W |
| Load loss‑120℃(155℃‑F) | 1168 W |
| Load loss‑145℃(180℃‑H) | 1262 W |
| No‑load current | 0.6 % |
| Impedance voltage | 4.0 % |
| Sound Level | 58 dB(A) |
| Overall dimension (L × w × h) | 1000 × 1145 × 915 mm |
| Total weight | 450 kg |
OMEK Power 75 kVA Transformer Features
Suitable for 45–60 kW small and medium loads, with some extra capacity to deal with the higher power demand such as when motors start. Low investment.
More compact in size than a 100 kVA transformer. Small footprint saves space, suitable for both outdoor pole mounting or installed in a switchgear substation.
OMEK’s 75 kVA transformer, when equipped with an amorphous alloy core, its no-load losses can reach to 50 W and load losses is as long as 900 W. Representative model SH25-M-RL-75.
Serves well in small processing plants, livestock and poultry farms, distributed small-scale photovoltaic grid connection, small construction sites, and small industrial parks.
75kVA Transformer Manufacturing Process
- Premium Copper Raw Materials
High Quality Steel Silicon Core- Core Shear Cutting
Core Winding and Assembled- Enter Core Annealing Furnace
Apply Cured Paint- Coil Winding Process
Oil Filling- Install Enclosure
Testing
Transformer 75 kVA Main Accessories
FAQs
Have any questions? We’re here to help you out.
The amps that a 75 kva transformer can handle is determined by the voltage. Take a 3 phase 75 kva transformer for an example, if the output voltage is 400V, then the amps on the 400V voltage side is appoximately 108.3 A. How does it come out? You can use the formulation below to work out any amps you want as long as you know the voltages.
I = Transformer’s Rated Capacity / (√3 × Line‑Voltage of This Side)
Where:
– I: Amps of This Side
– Transformer’s Rated Capacity: 75 kVA
– Line‑Voltage of This Side: Line voltage on the corresponding winding side
The weight of a 75 kva transformer is related to your core material, windings and loss requirements. If the 75 kva transformer is designed with an amorphous alloy core, it is heavier than what with a steel silicone core. Below is OMEK Power’s 75 kva transformer weights of different customized types.
75kVA Transformer Weight
| Transformer Type | Model | Weight |
|---|---|---|
| Amorphous alloy core transformer | SH25-M-RL-75 | 540 kg |
| Silicon steel core transformer | S13-M-75/10 | 445 kg |
| 75 kVA dry type transformer | SCB14-75/10 | 380 kg |
| 75 kVA oil immersed transformer | S13-M-75/10 | 445 kg |
Under rated load, the total loss includes iron loss and copper loss, and the heat generation is equal to the total loss. For a regular S11-75 kVA, the total loss is approximately 1.8-2.4kW, which means the heat dissipation is about 1800-2400W.
Due to low labor costs and a mature supply chain, the 75 kVA transformers offered by China is relatively lower. Even with occasional certification requirements, the overall cost remains competitive.
Below is a comparison of key regions for reference only. Actual price depends on raw materials, efficiency ratings, and customization details.
OMEK Power, based in China, manufactures its 75 kVA distribution transformers using raw materials sourced from leading brands.
Located within the copper-based industrial park in Tai’an, Shandong Province, the company benefits from a highly mature supply chain. We welcome inquiries and site visits.
| Region | Price (USD) | Remarks |
|---|---|---|
| China (China factory ex‑works) | 1800‑2300 | Low labor cost, huge production capacity |
| India (Locally manufactured in India) | 2100‑2800 | Large volumes of goods are also imported from China |
| Philippines (Local procurement in Philippines) | 2400‑3300 | Limited domestic production capacity, most goods are imported from China with additional import tariff and customs clearance costs |
| European Union (Local European brands) | 2600‑4200 | CE certification, mandatory high‑energy‑efficiency requirements of EU, high labor cost |
| North America (Local North‑American brands) | 4000‑7000 | ANSI/UL certification; single‑phase pole‑mounted 75kVA can reach 5000‑9000 USD |
The size of the breaker is determined by the magnitude of the current. If the 75kVA transformer is operating at full load and assume the maximum output current is 108 amperes, you can select a 125A molded case circuit breaker. Since the transformer allows for a slight overload for a short period of time, the current may still be a little larger.