Product Overview
This oil-immersed transformer is a top-tier energy-efficient model, fully compliant with the GB20052-2020 standard. It features a no-load loss that is 25% lower than the standard requirement and a load loss that is 18% lower. These performance improvements can lead to significant savings on electricity costs over time.
Enhance performance advantages
Zhejiang Lvma Electric S22 series Class‑I energy‑efficiency oil‑immersed transformers adopt optimized core and winding structure design, achieving extremely low no‑load loss and no‑load current, delivering remarkable energy‑saving performance for long‑term continuous operation.
Manufactured with high‑grade silicon steel sheet and premium insulating materials, the transformer features excellent heat dissipation capability, stable temperature rise and strong overload resistance. It maintains reliable output under fluctuating load conditions and extends whole‑service life.
Multiple vector group options and flexible tap‑changer solutions adapt to diverse grid voltage fluctuation scenarios. The robust oil‑immersed construction resists harsh outdoor environmental interference, with strong moisture‑proof and anti‑corrosion properties. Compact and reasonable overall layout facilitates on‑site installation and routine inspection. Low failure rate reduces later‑stage maintenance workload, bringing stable and cost‑effective power transformation solutions for power grid, industrial park and commercial projects.
Industry standard (IEC)
All S22 30‑2500kVA oil‑immersed transformers are designed, manufactured and type‑tested in strict accordance with IEC 60076 international standards for power transformers, covering requirements for insulation, temperature rise, dielectric strength and short‑circuit withstand capability.
The products also follow ISO 9001 quality management system requirements. Every unit completes a full set of factory tests including ratio test, resistance measurement, dielectric test and partial discharge inspection before delivery, to guarantee consistent quality and global project compatibility. Custom‑variant products will also comply with corresponding clauses of IEC 60076 according to adjusted technical parameters.
Type And Meaning
Product Features
High-quality raw materials
Our oil-immersed transformer uses high magnetic permeability, low-loss premium silicon steel, and features an enlarged core area. This design helps reduce no-load losses, thereby improving overall energy efficiency.
Fully sealed structure
This transformer adopts a fully sealed design and is equipped with a corrugated oil tank. This can automatically adjust the oil volume changes.
Low-loss design
The transformer winding uses highly conductive oxygen-free copper conductors. This material can effectively reduce load losses (copper losses).
Technical Data
|
Rate Capacity (kVA) |
Class I |
|||||
|
Electrical steel strip |
Amorphous alloy |
|||||
|
No-Load Loss(W) |
On-Load Loss(W) |
No-Load Loss(W) |
On-Load Loss(W) |
|||
|
Dyn11/Yzn11 |
Yyn0 |
Dyn11/Yzn11 |
Yyn0 |
|||
|
30 |
65 |
455 |
430 |
25 |
510 |
480 |
|
50 |
80 |
655 |
625 |
35 |
735 |
700 |
|
63 |
90 |
785 |
745 |
40 |
880 |
840 |
|
80 |
105 |
945 |
900 |
50 |
1060 |
1010 |
|
100 |
120 |
1140 |
1080 |
60 |
1270 |
1215 |
|
125 |
135 |
1360 |
1295 |
70 |
1530 |
1450 |
|
160 |
160 |
1665 |
1585 |
80 |
1870 |
1780 |
|
200 |
190 |
1970 |
1870 |
95 |
2210 |
2100 |
|
250 |
230 |
2300 |
2195 |
110 |
2590 |
2470 |
|
315 |
270 |
2760 |
2630 |
135 |
3100 |
2950 |
|
400 |
330 |
3250 |
3095 |
160 |
3660 |
3480 |
|
500 |
385 |
3900 |
3710 |
190 |
4380 |
4170 |
|
630 |
460 |
4460 |
250 |
5020 |
||
|
800 |
560 |
5400 |
300 |
6075 |
||
|
1000 |
665 |
7415 |
360 |
8340 |
||
|
1250 |
780 |
8640 |
425 |
9720 |
||
|
1600 |
940 |
10440 |
500 |
11745 |
||
|
2000 |
1085 |
13180 |
550 |
14000 |
||
|
2500 |
1280 |
13360 |
670 |
15450 |
||
Application Scope
1. The installation height is usually not more than 1000m above sea level.
2. The ambient temperature does not exceed 40℃.
3. The minimum outdoor temperature is -25℃.
4. Transformers that can operate under special conditions can be provided according to user requirements.
Buying Guide
When selecting S22 class‑I high‑efficiency oil‑immersed transformer, please evaluate project conditions with reference to the points below.
Confirm core electrical parameters Determine required transformer capacity based on total project load. Confirm high‑voltage and low‑voltage rated voltage matching your local grid condition. Clarify tapping range, select NLTC for normal stable grid; choose OLTC if frequent grid voltage fluctuation occurs.
Select proper vector group Choose Dyn11 for most industrial and commercial sites, it provides good zero‑sequence performance for unbalanced load; select Yyn0 for conventional general power distribution scenarios; Yzn11 is preferred for applications that need lightning‑resistance, such as rural overhead‑line power supply.
Check installation and ambient conditions This oil‑immersed transformer can be deployed indoors or outdoors. For high‑humidity, dusty or coastal corrosive environments, specify enhanced anti‑corrosion paint treatment. Reserve sufficient space for heat dissipation and routine maintenance during site layout.
Define custom requirements If standard specifications cannot meet your needs, special capacity, voltage combination or auxiliary accessories can be customized.
Submit project information Provide your load data, grid parameters and site environment description to our sales team. We will give professional model recommendation and solution for your power distribution project.
Reminder: All selection suggestions are for general reference, final confirmation shall be combined with local power grid access rules.
FAQ
Q: How long does it take to produce High Voltage Power Transformers?
A: Normal within 10 days. It depends on detail items and quantity. Please contact us for details.
Q: How to get product quotation?
A: You can contact us anytime through the contact information on the website. You will receive our response within 24 hours.
Q: What after-sales services can I enjoy?
A: The transformer comes with a one-year warranty. Long-term online technical support is provided, along with customer training, and regular updates to maintenance manuals and technical guides.
Q: How long is the average lifespan of a transformer?
A: The lifespan ranges from 20 to 40 years, influenced by factors such as maintenance level, operating environment, and load conditions.
Q: How to determine the parameters of the transformer?
A: We can usually find the parameters in transformer nameplates, drawings, outline drawings, and technical tables.
Q: Do you have oil-immersed transformers and dry-type transformers in stock?
A: No, as transformers require customized parameters based on demand, we usually need to design them after receiving an order.
Hot Tags: 30-2500kva/10kv class i energy-efficiency oil-immersed transformer, China 30-2500kva/10kv class i energy-efficiency oil-immersed transformer manufacturers, suppliers, factory, Energy Efficiency Oil Immersed Transformer, 500 kva oil filled transformer, 150 kva transformer , 100 kva distribution transformer, 50 2500kVA 10kV Super Low loss Oil Immersed Transformer, Photovoltaic Box Transformer