11kv electrical distribution transformer 800kva step up transformer price factory &manufacturer 30years for Bangladesh
Product introduction
* The transformer core is made of imported high-quality cold-rolled silicon steel sheet, which greatly reduces no-load loss and no-load current. The core is tightly bound to ensure the compactness and reduce noise.
*  The high and low voltage windings are made of oxygen-free copper. The low voltage winding of 500KVA and below is of double-layer cylinder structure, of 630kVA and above adopt double helix or four helix structure. High-voltage winding adopts multi-layer cylinder structure.
*  Dyn11 is used in the transformer connection group to reduce the influence of harmonics on the power grid and improve the quality of power supply.
* The transformer is a fully sealed structure, with three coats of primer and one coat of finish paint applied on the inner and outer surfaces. The product is salt fog proof, moisture proof and fungus-proofing, beautiful, durable and reliable
* The measured noise value is lower than the standard and maintenance free under normal operation.
Overview & features
It is suitable for power systems of AC50Hz and rated working voltage up to and including 10kV, can be used as small and medium sized substation and industrial and mining enterprises, institutions, power distribution transformer equipment and lighting loads.
(I). Product Specification:
Frequency: 50Hz or 60Hz
Capacity: 5kVA ~500kVA
Primary Voltage: 2400~46, 000V
Secondary Voltage: 120~ 600V
(II). Product Scope:
Meet or exceeds ANSI Standards
Robust construction having excellent short circuit and thermal withstand capabilities
The Transformer is more efficient by Reduced no-load losses and Reduced load losses
Customized to Specific Requirements
(III). Three phase pole mounted type distribution transformer Features:
- Three phase transformer with more economical cost
- Pole Mounted type transformer for easy installation
- Oil Filled type for Cooling Method
- Three phase pole mounted transformer is used for power transmission and distribution, with low loss and high efficiency
- This type three phase pole mounted transformer is advanced design to increase short-circuit strength, thermal strength
- Durable and corrosion resistant finish meets all ANSI/IEC/BS Standards for single phase pole mounted transformer.
- The three phase pole mount type Automated design system insures each customer's unique requirements are satisfied.
C. R. G. O Silicon Steel or Amorphous Metal is available for customer's option.

Service conditions
Installation height: altitude shall not exceed 1000m
Ambient temperature: -40ºC~40ºC

Transformer Core

1.The core is made of high quality grain-oriented cold-rolled silicon steel of high magnetic conductivity, by using 45°five-step overlapping method to reduce the no-load loss and no-load current.
2. Simulation analysis method is applied for the core design, thus to precisely and effectively calculate the vibration frequency and scale.
3. Flexible connections are adopted between the core and coils, core and clamps. With these measures, transformer's noise level has been improved by 10-15dB over the conventional products.
LV windings

1. For LV windings above 400 kVA capacity, superior foil conductors are adopted for winding manufacturing, thus to obtain better amper-turn balance and less transverse magnetic flux leakage, and finally to greatly improves transformer's anti-short circuit capability.
2. By reasonably designing the oil passage within the winding, winding's heat dispersion effect is greatly increased. Thus the reasonable design has decreased temperature rise and improved products' overload capability.
HV windings

1. HV windings are manufactured with superior wire conductors, insulated reinforced with fiber glass.
2. The HV windings are cast under vacuum and high pressure conditions in Germany HUBERS vacuum Cast Machine, resulting the best resin penetration and very low partial discharge( partial discharge for 11kV product could be lower than 5Pc).
3. Optimized structure is adopted for HV windings to improve transformer's electric field. Lighting impulse simulation calculation was adopted for winding model design, thus to substantially improve product's anti-lighting capability.
Installation of protection device 
Transformers of all capacity specifications have been equipped with pressure relief valve; 
Gas relay with alarm and tripping terminals is available on request. 

Oil-temperature measurement device 
All the transformers are equipped with tube holder for glass-stem thermometer that is set on the top of oil tank, and immersed in oil for about 120±10mm;
1000~2000kVA transformer is equipped with outdoor signal thermometer;

Transformer oil tank 
Transformer oil tank is composed of corrugated walls with powder painted surface and reinforced with film. Corrugated cooling fin not only has cooling function, but also has "breathing" function, the elasticity of corrugated cooling fin make it adapt to the change of oil volume due to change of temperature. So this hermetically sealed transformer does not have oil conservator, which decreases the height of transformer. 
The transformer adopts vacuum oil-injection technology during encapsulation that thoroughly removes the moisture from transformer, and keeps the transformer oil from contacting the air. This technology also avoid insulation performance reduction or oil aging due to entering of oxygen or moisture, it improves operation reliability of transformer. 


Technical parameter

About our company:
**Quality assurance--highly qualified production materials, the most advanced technology, and strict staff training
** Industry experience--situated in the high developed area of China, Foshan city, Guangdong province and have rich industry experiences, being equipped with strong and wide variety of advanced manufacturing equipment
** Certificates and honors--strictly meeting international standards, having complete quality system, winning many honors from the government and receiving good comments from the customer
**Professional team--we have robust professional team to meet various needs for shopping bag
**Patent license--the product is incorporated with many product patents and has complete certification system
**Cooperative partners--rich experience in working with many world famous large international groups and companies

                                                                      Tanggula Transformer Project in Operation


Company Introduction 


Tanggula Photoelectric Technology Co., Ltd. (abbreviated as Tanggula Electrics,formerly known as Guangdong Fuchen Electric Co., Ltd.) is a professional high-tech group specializing in the R&D, manufacturing and sales of 10-35KV high & low voltage switchgear, power transformer, rectifier transformer, special type transformer, new energy vehicle charging station, diesel generator, cable and wire with different design and spec. Almost all our users are long term cooperation partners. After more than 30 years of rapid economic development in China, Tanggula Electric has become a leading R & D, manufacturing and service base of medium voltage, high voltage and ultra-high voltage distribution equipment in China, as well as a reliable supplier of high reliability power transmission and transformation equipment for distribution network at home and abroad.


                                           strategic cooperation partner





FAQ:
1.Q: Are you manufacturer?
A: Yes, we are manufacturer. Our factory is in Foshan City, Guangdong Province.
2.Q: Can I get guarantee of products?
A: Yes, every product is 1 year quality warrantee under customer correct using the products.
3.Q: Do you have any Certificate?
A: Yes. Each of our unit has  3C and ISO related  certificate. If you need any other Certificate, we can help you to apply it.
4.Q: How can I pay you?
A: Pay by T/T and L/C is acceptable.
5.Q: What about the production?
A: In general, it take 4~6weeks and it depend on the different style.


Any need for power transformer, please feel free to contact us:
Linda | Oversea sales | Oversea Dept.
Tanggula Photoelectric Co., Ltd
Add: No. 18 Yanjiangnan Road, Nanhai District, Foshan City, Guangdong Province, China. ZIP: 528226
Web:gdtanggula.en.made-in-china.com