High-Performance 11kv to 415V 250kVA Electric Oil Transformer

• Customization: Available
• Application: Power, Lighting
• Phase: Three
• Core: Core-type Transformer
• Cooling Method: Oil-immersed Type Transformer
• Winding Type: Two-winding Transformer
• Certification: ISO9001-2000, ISO9001, CCC, CE
• Usage: Power Transformer, Distribution Transformer
• Frequency Characteristics: Power Frequency
• Shape of Core: Ring
• Brand: Tsty
• Product Name: Oil Immersed Transformer
• Type: Oil-Filled Transformer
• Material: Copper / Aluminium
• Standard: IEC / GB
• Transformer Type: S11 Oil-Immersed Transformer
• Vector Group: Dyn11 / Yyn0
• Warranty: 2 Years
• Package: Wooden Case
• Frequency: 50/60Hz
• Coil Material: Aluminum/Copper
• Connection Group: Yyn0/Dyn11
• Transport Package: Wooden Case or Pallet
• Specification: IEC/ANSI/IEEE
• Trademark: TSTY
• Origin: China
• HS Code: 8504220000

Product Description

Product Description

11kv to 415V 250 kVA Electric Oil Transformer 1600kVA 35kv Oil Transformer 150kVA Oil Transformer price

Product Parameters

Number of Phase	Three Phase
Winding Type	Two Winding
Rated Capacity	200kVA
High Voltage	10/11kV
Low Voltage	0.4kV
Tapping Range	±2x2.5%
Impedance Voltage	4%
Load Loss	2.73/2.6kW
No-load Loss	0.34kW
No-load Current	1.0%
Frequency	50/60Hz
Connection Group	Yyn0/Dyn11
Cooling Method	ONAN
Coil Material	Aluminum/Copper
Size	1240x780x1360mm
Weight	910kg

The rated voltage can be customized as customers' requirements.
The fully sealed oil-immersed power transformer developed by TSTY has the advantage of low loss, low noise and high efficiency, which can achieve good energy-saving effect and reduce pollution. Compared with the ordinary oil immersed transformer, the fully sealed transformer cancels the oil conservator, and the change of oil volume is automatically adjusted and compensated by the elasticity of the corrugated sheet of the corrugated oil tank. The transformer is isolated from the air, so as to prevent and slow down the deterioration of oil and insulation aging, enhance the operation reliability, and avoid maintenance in normal operation.

Product Details

Mainly Components:
The mainly parts of this transformer include Oil Tank, Conservator, Buchholz Relay, Breather Unit, Oil Indicator, Temperature Detector, Pressure Relief Device, Thermal Relay, Radiator, and Bushing.
1. The oil tank is used to soak the windings by placing it in.
2. Comply with IEC standards with CE/ISO certificates
3. be easily contacted & enlarge throughout loading so that the temperature of the oil can be increased and decrease.
4. Buchholz relay is used when a conservator tank is used. Because it indicates errors like loss of oil once it goes low, improper flow of oil between the tank & transformer.
5. Breather Unit includes silica gel that absorbs moisture in the oil. It changes its color from blue color to pink color it is not capable to absorb moisture in the oil.
6. The oil indicator indicates the level of the oil within the conservatory unit.
7. The temperature detector monitors the temperature of the oil. If the temperature of the oil increases to a certain level then the transformer will be disconnected from the service.
8. Pressure relief device decreases the pressure within the transformer to avoid an explosion of the transformer.
9. Thermal relay is used as an indicator for the temperature of the winding
10. Full galvanized coating   no rust
11. The bushing is used to connect the internal windings of the transformer with the help of an exterior electrical network.

Product Display

Service Environment
1.Device types: outdoor type
2.Type of Voltage Regulation: Off-circuit or On-Ioad
3.Tapping Range: ±5 %  ±2x2.5 % ±4x2.5 %
4.Frequency: 50Hz or 60Hz
5.Phases: Three or single
6.Connection Symbol: Dyn11,Yyn0 ( or as requested)
7.Short- circuit Impedance:  Standard Impedance
8.Altiude is not exceeding 1000m,ambient temperature not exceeding 40OC. If it can't meet such conditions,we will modulate parameters in accordance with standard.

Fields of application

Waste incineration project,three gorges dam project,zhuhai-hong kong-macao bridge,state grid corporation,coal mine,photovoltaic project Power stations,compact transformer station, normal industrial factories , mines , hospitals, buildings, airports, tunnels, chemical plants, nuclear power plants etc.and so on.

Customer Case

After-sales service
1.Our company provides you with project design and process design, and designs and manufactures products according to your equipment purchase plan and specific needs. And train technical and operating personnel for you.
2.The newly purchased products are provided with online assistance for installation and debugging. The products are under the lifelong service system. If problems occur in normal use, we will provide solutions within one working day after receiving user's feedback. We will try our best to get the product up and running as soon as possible. And there are regular visits by professional technicians to ensure the long-term, safe and reliable use of our products.
3.We use quality authentic materials, process and manufacture in strict compliance with ISO9001:2000 international quality management to ensure the quality of excellence and the smooth installation!

Packaging & Shipping

Company Profile

TSTY Electric Co., Ltd. was established in 2011 and is an excellent and reliable transformer manufacturer in China. The company mainly develops and produces oil-immersed transformers, dry-type transformers, box-type substations and high and low voltage complete sets of equipment.
The equipment put into production and operation of the project advocates energy saving, intelligence, information and mechanization. The company has established the Henan Triangle Energy-saving Transformer Engineering Technology Research Center,with 71 utility model patents and 15 invention patents.
With years of accumulation in the transformer industry and strong technological innovation capabilities, TSTY Products are sold to the Middle East, North America, South America, Europe, Southeast Asia, Africa and other regions, covering more than 40 countries.

Production Equipment
FAQ
Q: Who are we?
A:We are a big professional manufacturer of oil immersed transformer, dry type transformer, transformer substation,HV and LV switchgear, established in 2011 year .

Q: Why should you buy from us not from other suppliers?
A:As an enterprise specializing in transformer production for 12 years. ISO9001-2008, OHSAS 18001:2007, ISO4001:2004L .CE,CCC,UL,CSA,TYPE TEST REPORT,etc certificates.

Q: How do transformers been shipped?
A: Transformers always been delivered by ship,train or truck for oversea,which with main active body in bulk and accessories in wooden cases.

Q: Can your product be customerized? 
A: Considering differences in voltage, frequency and other speciality of transformer product in different countries and
regions,our product can be customerized according to your requirements.

Q: Do you offer guarantee for the products? 
A: Yes. We offer at least two years guarantee for all of our transformers. 

Q: Do you accept FAT(Factory Acceptance Test)? 
A: Yes. It's available. We are responsible for each set transformer's testing. 

Q: Do you assign engineer for after-sale service?
A: Yes. For our products,we all show after-sale guide installation adn question inquiry.