Send Message

Hermetically Sealed Oil Immersed Power Three Phase Transformer 400KVA

Basic Information
Place of Origin: CHINA
Brand Name: WINLEY
Certification: ISO,CE
Model Number: S11-400kva
Minimum Order Quantity: 1unit
Price: $500-$150000
Packaging Details: Plywood case
Delivery Time: 30days
Payment Terms: T/T
Supply Ability: 1000set/month
Detail Information
Phase: Three Frequency: 50Hz/60Hz
Cooling Method: ONAN/KNAN Type: Oil Immersed
Material: Copper/Aluminum Rated Capacity: 30-3000kva Or Customized
Input Voltage: 5-35kV Or Customized Noise Level: 200v/220/240/380v/400v/415v/440v
High Light:

Three Phase Transformer 400KVA


Oil Immersed Three Phase Transformer


Hermetically Sealed Oil Immersed Transformer

Product Description

400KVA Hermetically Sealed Oil-Immersed Power Three Phase Transformer





1) When the transformer is packaged, the vacuum oiling process is used to completely remove the moisture in the transformer.
2) After sealing, the transformer oil does not contact with the air, which effectively prevents the oxygen and water from immersing the transformer and leading to the deterioration of performance (aging of materials and oil).
3) The box is the corrugated radiator tank, not only has the cooling function but also has the 'breathing' function. The elasticity of the corrugated radiator can compensate the oil volume change caused by the temperature change.




Rated Capacity Voltage Ratio Vector Group No-load Losses(kw) Inpedence
30kva 380v/3kv/6kv/11kv/33kv Dyn11/Yd11/Yyno 0.1 4%
50kva 380v/3kv/6kv/11kv/33kv Dyn11/Yd11/Yyno 0.13 4%
100kva 380v/3kv/6kv/11kv/33kv Dyn11/Yd11/Yyno 0.2 4%
200kva 380v/3kv/6kv/11kv/33kv Dyn11/Yd11/Yyno 0.34 4%
315kva 380v/3kv/6kv/11kv/33kv Dyn11/Yd11/Yyno 0.42 4%
500kva 380v/3kv/6kv/11kv/33kv Dyn11/Yd11/Yyno 0.6 4%
1000kva 380v/3kv/6kv/11kv/33kv Dyn11/Yd11/Yyno 1.15 4.50%
1250kva 6kv/11kv/33kv Dyn11/Yd11/Yyno   4.50%
2500kva 11kv/33kv Dyn11/Yd11/Yyno 2.3  
4000kva 11kv/33kv Dyn11/Yd11/Yyno 2.8  


Hermetically Sealed Oil Immersed Power Three Phase Transformer 400KVA 0Hermetically Sealed Oil Immersed Power Three Phase Transformer 400KVA 1

Hermetically Sealed Oil Immersed Power Three Phase Transformer 400KVA 2




1. Q: Can I have a sample order?
A: Yes, we welcome sample order to test and check quality.
2. Q: What is the lead time?
A: Sample time 3-7 days, we usually ship by DHL, UPS, FedEx,etc. Mass production time 7-25 days.
3. Q: How long is the warranty?
A: 24 monthes from B/L. If there are any accessory problems,just provide the photos of damaged accessory,then we will provide free service. According to the number of products,we will provide easily damaged accessories for free. we also can provide technical support if you need.
4. Q: Is OEM/ODM available?
A: Yes,it is! We are manufacturer with our own R&D team, we can customize products according to customer's drawing or requirements.
Customized services:
a. Customized color and special function.
b. Customized box.
c. Print customer's logo(MOQ:≥10pcs).
d. Your other ideas about product, we can help you design and put them into production. The above customized services must be confirmed before production.
5. Q: How to control the products quality?
A: Our company owns the core technology ,all kinds of products hold CE certificate. We have professional engineers. Workers are strictly required to make products according to the drawings. Each process has technical instructors.The QC supervisors will regularly inspect the production. We will do products performance tests during production, and comprehensive quality tests when the products is completed.

Contact Details

Phone Number : 86-18650108051

WhatsApp : +8618650108051