1000 kVA Transformer Manufacturer in China
Jinan Omek Electric Power Co., Ltd. (OMEK Power), a premier 1000 kVA transformer supplier in China. We are also a reliable transformer solution advisor. Our 1000 kVA distribution transformers have many types. Include dry type, oil type, pad mounted and pole mounted types. They all meet IEC, IEEE and ANSI.
We deliver more than a product, we deliver value. OMEK 1000 kVA (1 MVA) transformer has superior efficiency and longer life span. It can help you reduce risks and promote your business to a higher level!
If you are looking for a reliable 1MVA transformer manufacturer. We are here to help you!
OMEK Power 1000 kVA Transformer Details
1000 kVA Transformer Specification
- Specification 1
- Specification 2
- Specification 3
| Brand | OMEK Power |
| Types | Dry type |
| Tank Design | Cast resin |
| Number of Phases | 3-phase |
| Rated Power | 1000 kVA / 1MVA |
| Method of Cooling | AN/AF |
| High-voltage side | 11kV |
| Low-voltage side | 400V, 433V, 440v, 480v (customizable) |
| Voltage Regulation | Off-circuit tap changer |
| Tapping Range | ±2×2.5±5 |
| Frequency | 50 Hz |
| Connection | Dyn11, Yyn0 |
| No-load Losses | As low as 385 W (tailored to your specifications) |
| Load loss 130℃ (B) / 100℃ | 6885 W |
| Load loss 155℃ (F) / 120℃ | 7315 W |
| Load loss 180℃ (H) / 145℃ | 7885 W |
| No-load current | 0.20% |
| Impedance voltage | 6.00% |
| Sound level | 72 dB |
| Overall dimension (L*w*h)/Size | 1430*1480*1525 |
| Total Weight | 2170 kg |
| Standards | IEC 60076 |
| Copper weight | kg |
✅ Suitable for the places requires fire protection;
✅ Strong impact resistance;
✅ Strong short-circuit resistance;
✅ Strong moisture proof ability;
✅ 1 MVA large rated capacity has a wide application;
✅ Based on OMEK’s analysis of leakage magnetic field and temperature field, more safer and reliable
1000 kVA 33kV Oil Immersed Transformer
- Specification 1
- Specification 2
| Brand | OMEK Power |
| Types | Oil-immersed |
| Tank Design | Corrugated tank |
| Number of Phases | 3-phase |
| Rated Power | 1000 kVA |
| Method of Cooling | ONAN/ONAF |
| High-voltage side | 33kV |
| Low-voltage side | 400V (customizable) |
| Voltage Regulation | Off-circuit tap changer |
| Tapping Range | ±2×2.5±5 |
| Frequency | 50 Hz |
| Connection | Dyn11, Yyn0 |
| No-load Losses | 1150 W |
| Load loss 75℃ | 11500 W |
| No-load current | 0.14% |
| Impedance voltage | 6.50% |
✅ It adopts high voltage chamber and leakage protection installation;
✅ The enclosure uses cooling fins, good heat dissipation;
✅ Hard to moisture;
✅ Low loss;
✅ Low operation cost
This is the nameplate of OMEK Power’s 1000 kVA oil‑immersed distribution transformer model S-M-1000/10.5-0.4, with 10.5kV‑400V voltage ratio. It is with 3‑winding, uses Dyn11 connection and ONAN cooling.
Download our 1000kVA 10.5-0.4kV Nameplate for the PDF version.
Advantages and Benefits
1 MVA power transformer is a kind of medium rated capacity transformer. So very suitable for most of the large workshops and communities.
It operates with high efficiency. Since OMEK will use high quality silicon steel core or amorphous alloy core for it. More costs will be saved in the long term run.
1000 kVA transformer can be made with dry type as well as oil type. These types can serve different scenarios, such as indoor or outdoor places.
It can operate in very stable condition. Since OMEK will pay more attention to its mechanical strength etc when designing this larger rated capacity.
Scope of Our Supply
– Product types: oil-filled, dry type, pad mounted, pole mounted, and substation 1000 kVA transformer options
– Primary voltage ratings available: 6kV, 6.3kV, 10kV, 10.5kV, 11kV, 20kV, 22kV, 24kV, 35kV, 36kV, 37kV, 38.5kV
– Secondary voltage rating: 0.4kV (customizable)
– High voltage tap range: on-load / off-load
– Capacity range: full series from 10 kVA to 2500 kVA transformer
– Core material options: amorphous alloy core, silicon steel core
Why choose OMEK Power
Our Advanced Production Facilities
Our Innovation Engine: Driving Transformers Forward
We Don't Only Provide Power — We Provide Solutions!
As a supplier of 1000 kVA transformers for 17 years, we clearly understand you are not only buying equipment, but also require a whole solution.
That is OMEK can provide you. Based on our successful projects, we can help you decide which type of transformer is most suitable for your site. Whether a dry type, oil immersed, pad mounted or pole mounted. You can leave your headache on us.
Your 1000 kVA Transformer Solution Starts Here!
Since we focus on solutions, not just equipment, we also work with many trusted factories through a strict bidding and selection process. This ensures you always get the most suitable 1000 kVA transformer option — with the right technology, the most competitive price, and the fastest delivery time!
If you need a reliable partner for your next project, OMEK Power is ready to support you with expert advice, flexible sourcing, and stable product quality!
Contact us today and let’s create a safe, efficient, and long-lasting power solution for your project!
After-Sales Service
We provide complete technical documents, certifications, installation guidance, and reliable after-sales support. Our team stays with you from delivery to operation, ensuring your 1000 kVA transformer runs safely, efficiently, and with confidence.
Application
Related Products
FAQ
Have any questions? We’re here to help you out.
There’s a rule in the transformer industry that for an oil immersed transformer, if the rated capacity is above 750 kVA, a buchholz gas relay is a must. That means the buchholz gas relay can not be used for an oil immersed transformer with a rated capacity lower than 750 KVA. For a dry type transformer, there’s no insulation oil in it, so there’s no need to install a buchholz gas relay.
Basic steps:
- – Check foundation, ventilation, fire safety, and grounding
- – Lift the transformer into position
- – Install HV and LV cables
- – Connect the grounding system
- – For oil transformers: check oil level, sealing, and dryness
- – Perform insulation, ratio, and withstand voltage tests
- – Energize after confirming everything is correct
For exact procedures, consult your transformer manufacturer.
It means the transformer has a rated capacity of 1000 kVA. The maximum apparent power it can handle. It is used to change voltage levels and deliver electrical power.
1000 kVA is the apparent power.
Real usable power depends on the power factor (normally 0.8–0.85).
The calculation is 1000 kVA × 0.8 = 800 kW
So a 1000 kVA transformer usually provides 800–850 kW of real power.
The theoretical maximum is 1000 kVA.
For long-term safe operation, the recommended load is 800–900 kW (power factor 0.8–0.9).
Short-term overload capability depends on the model and technical specifications.
The 1000 kVA transformer’s current rating depends on the voltages. More less the voltage, more greater the current rating. Because the formula to calculate the current rating is:
I = current rating（A）
S = transformer’s rated capacity（kVA）
V = voltage（V）
For example, under a primary voltage of 11kV, the 1 MVA transformer current rating on the high voltage side is 52.5A; under a primary voltage of 33kV, the 1 MVA transformer current rating on the high voltage side is 17.5A.
In addition, for transformers with a same rated capacity, the current ratings are vary due to their phases. For a single phase transformer, it has a higher current rating than that of a three phase transformer.