25kVA 480V Hermetically Sealed Oil Immersed Transformer/Distribution Transformer

China 
                25kVA 480V Hermetically Sealed Oil Immersed Transformer/Distribution Transformer
              manufacture and supplier

25kVA 480V Hermetically Sealed Oil Immersed Transformer/Distribution Transformer image

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Basic Info.

Model NO.
S11-25/0.48-0.237-0.137KV

Cooling Method
Oil-immersed Type Transformer, Oil-Immersed Type Transformer

Winding Type
Customized, Customized

Certification
ISO9001-2000, ISO9001, ISO9001-2000, ISO9001, ISO9001-2000, ISO9001

Usage
Single-phase Transformer, Rectifier Transformer, Combined Transformer, Power Transformer, Distribution Transformer, Single-Phase Transformer, Rectifier Transformer, Combined Transformer, Power Transformer, Distribution Transformer, Single-Phase Transformer, Rectifier Transformer, Combined Transformer, Power Transformer, Distribution Transformer

Frequency Characteristics
50Hz 60Hz, 50Hz 60Hz

Shape of Core
Ring, Ring

Brand
Ville, Ville

Transport Package
Wooden Cases

Specification
IEC CE, ISO

Trademark
VILLE

Origin
Ningbo China

HS Code
8504220000

Production Capacity
3000/Year

Product Description

Product introduction:

Load regulating power transformer is developed and produced according to the requirement of the market. It

can be widely used in urban & rural, industrial & agricultural power network, which has a great significance for

energy-saving and environment protection. The lamination method of this product’s iron core is ladder form,

instead of the traditional iron core lamination technology, which improves the magnetic circuit distribution inside

the iron core. It can be seen as a revolution of transformer iron core manufacturing. Compared with the

traditional, the no-load loss, no-load current and noise of the new one decrease 20% respectively, and load

loss decreases 10%. The new product applies CAD, with advance design, reasonable structure, and excellent

materials. Each index complies with the standards of GB1094-1996 “Power Transformer” GB/T6451-1999

“Technical Parameters and Requirements of Three-phase Oil-immersed Type Power Transformer”. Now its level

is the leading position of our country.

Range of application:

It can be widely used in urban power network as well as petrochemical, metallurgical, textile and humid,

inaccessible enterprises, and mining.

Features:

High reliability, advanced level of performance, economic indicators and reasonable;

Using phase-shaped core of three joints, curing paint brushing the surface to reduce wear and tear and noise;

Winding structure of a new oil road design is reasonable, with the new insulation to improve the mechanical

strength and the ability to engage in short-circuit;

Tank forms, beautiful, generous.

Technical parameters:

 

Three phase distribution transformers with natural cooling (ONAN) for outdoor use, hermetically sealed, without 
conservator.
TYPICAL DATA
Rated power : 25 kVA
Standard : IEC 60076
High Voltage : 480  V, ± 4 x 2,5%
Low voltage : 237/137 V
Vector group : Dyn 11
Approx. No Load losses :  Max 90 W
Approx. Load losses :  Max 550 W
Impedance : 4%
Frequency : 60 Hz
Cooling : ONAN
Approx. dimensions :790 x 1100 x 500 mm
Pole mounted version
GENERAL DATA
According to IEC-60076
– Max. ambient temperature: 50°C
– Temp. rise oil/windings: 50°C/55°C
BIL: 2 kV
– Hermetically sealed, with nitrogen cushion
– For outdoor installation
– Corrugated sheet steel tank
– Painting: 1x layer metal primer
2x layer finishing paint; color RAL 7033 paint finish system suitable for tropical conditions
– Cooling medium: oil Shell Diala B or equivalent
– H.V. and L.V. windings copper
CONNECTIONS
– 3 pcs. H.V. through insulators DIN 42531
– 4 pcs. L.V. through insulator DIN 42530
– 2 pcs. Earthing connections M12
ACCESSORIES
– Name and data plate
9 position off circuit tap changer
– Filling plug
– Lifting-, pulling/ transport eyes
– Overpressure (safety) valve
– Horizontal LV terminal pad connectors
Bracket for pole mounting
* All above mentioned characteristics are at nominal
current, 75°C winding temperature and frequency 60Hz.

Work shop

Ville Electric Company will keep up with the century, the epoch,

Sincerely look forward to your cooperation and win-win!

Create brilliant!
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