2500kVA 11kV Oil-immersed distribution transformer three-phase

Product Detail

Description：

Oil immersed transformer ,use our company special calculation and validation procedures to make sure theperformance of products. superior process equipment ,elaborate materialselecting and efficient manufacturing make the transformer have smallvolume,light weight,low loss,low partial discharge,low noise characteristics.

The product is stable,reliable,economic, environmental protection. lt can beapplied to many places such as power plants,transformer substation ,largeindustrial mining and petrochemical enterprise and so on.

Features：

Ultralow no-load loss
Energy saving and great power consuming efficiency
Copper coil winding, strong short circuit resistance ability
Dyn11 coil connection decrease the influences of harmonic wave
Fully sealed structure for maintenance free
Slow insulation aging & longer serving life

Parameters：

Oil-immersed distribution transformer three-phase
Model NO.	S-2500-11
Product classification	Distribution transformer
Rated capacity	2500kVA
Primary voltage	11kV
Secondary voltage	0.4kV
Number of phase	3
Number of winding	2
Rated frequency	50Hz
Tap changer	OCTC
Tap range	±2×2.5%
Vector group	Yd11（400v delta ，11kv star ）
Cooling system	ONAN
No-load loss	3800+10%
Load loss	19000+10%
Standard	IEC60076
Impedance	4.75±10%
Basic insulation level	75/28kv
Winding material ( H.V & L.V)	Copper
The way the bushing appears	Porcelain
Power frequency withstand voltage	——
Lightning impulse	——
The temperature rise—Winding	——
The temperature rise --Top oil	——
Tank color	——
Creepage distance	——
Environmental requirement	——
Transformer structure	Sealed

External dimensions：

企业微信截图_17240297972200.png

Size	2425mm×1520mm×2170mm
Weight	3080KG

Environmental requirement：

Max. ambient temperature
Altitude

Product show：

Yawei 160kVA 10kv Hot Selling Oil-Filled Three-Phase Distribution Transformer with UL

What are the structural characteristics of oil-immersed distribution transformers?

Definitions and Characteristics：

Oil-Immersed: It means that the iron core and windings of the transformer are immersed in insulating oil, and the oil plays a dual role of cooling and insulation.
Distribution Transformer: It is used to convert high-voltage electrical energy into low-voltage electrical energy for users' use.
Three-Phase: Usually, it means that the transformer has three independent windings and is applicable to three-phase alternating current systems.

Structural Characteristics：

Iron Core: It is usually made by laminating high-quality silicon steel sheets, featuring low loss and low noise.
Windings: The primary winding and the secondary winding are usually wound with copper wires, possessing excellent electrical conductivity and mechanical strength.
Insulating Oil: The inside of the transformer is filled with insulating oil. The oil not only plays a cooling role but also provides good insulation performance.
Oil Tank: The iron core and windings of the transformer are installed in the oil tank. The oil tank is usually made of steel plates and has good sealing performance.
Cooling System: Depending on the power level, oil-immersed transformers can adopt natural cooling, air cooling or forced oil circulation cooling methods.
Bushing: The high-voltage and low-voltage leads are led out through the bushing. The bushing has good insulation performance to ensure safe operation.