220v 110v step down transformer 3kva single phase

         220v 110v step down transformer 3kva single phase             

HSLEC has been specizlied in  Low voltage Dry Type Transformer-Control and Isolation Transformer for more than 20 years and it function to supply power to control and auxiliary equipment not connected directly to the main circuit.

1. Input voltage: rated voltage ±10%

2.Output voltage: rated voltage +5% (no load)

3.Efficiency: ≥90%

4.Waveform distortion: no additional waveform distortion

5.Protection: over-current protection

6.Insulation resistance: ≥50MΩ

7. No breakdown or flashover phenomenon under power frequency sine voltage of 2000V for1min

8.Overload capability: for 1min under two times of rated current

Overview:

1. DG and SG series single - phase and three - phase dry type transformer adopts high quality material and advanced technology , it has advantages of damp - proof and convenient maintenance. it can be applied to such power transmission and distribution places like underground railway , high building, airport, station, wharf, enterprise, tunnel, etc.

2. It is mainly used in power supply occasions of AC 50~60Hz and voltage less than 1000V. All the input and output voltage , connection group and capacity of tapped winding can be designed and produced according to users’ requirements.  

Working conditions:

1.Ambient temperature: -25°C~+40°C 
2.Altitude: <1000m 
3.Relative humidity: <90% 
4.Environment exists without gas, steam, chemical deposition, dust or dirt that will affect transformer’s insulation seriously, also explosive or corrosive medium is not allowed. 
5.If any special working conditions that are not in line with the above stipulations, user shall negotiate with us.

Model and meaning:

Main technical characters:

1.Input voltage: rated voltage ±10% 
2.Output voltage: rated voltage +5% (no load) 
3.Efficiency: ≥95% 
4.Waveform distortion: no additional waveform distortion 
5.Function: indication of input voltage, output voltage and current. 
6.Protection: over-current protection 
7.Can operate itself without anybody attending for a long term 
8.Insulation resistance: ≥50MΩ 
9.Electric strength: no breakdown or flashover phenomenon under power frequency sine voltage of

   2000V for 1min 
10.Overload capability: for 1min under two times of rated current

 Techinical Parameter:

As an experienced manufacturer and supplier,we can provide a wide of range of models products and below is the technical parameter for your reference.And we can produce as the customers' specifications and request,just let us know your requirement details!

 Photos

Production Show:

1.Fewer material used 

 As compared with three phase control transformers with the same capacity, single phase ones use less iron and copper materials. If single phase transformer is designed with a spiral type core, its no-load loss can be reduced by 15% or above. Thus, the production cost and use cost are greatly reduced, and the life cycle cost is maximized.

2.Low investment in transmission wire

 Single phase power supply system can save line by 33% to 63%. So, single phase dry type transformers are ideal for using in rural area and street light power supply systems.

3.Suitable for bulk production

Due to its simple structure, single phase control transformer is suitable for bulk production, which can help improve product quality and production efficiency.

4.Low construction investment

According to the statistics, shortening the distance of low voltage trunk line is an ideal way to reduce line loss. As the single phase control transformer is light weighted and convenient for installation, it can be simply installed onto telegraph poles to supply power. Thus, power supply quality is also improved. 

5.Application Show:

Packing: security export wooden packing or as the customer request

Delivery:  7-30 days upon receipt od the payment or as the order quantity by air,sea,train

About us:

Our management idea:

Where promises made, where promises kept.

♦  Qinhuangdao Huashenglong Electrical Equipment Co., Ltd.(HSLEC) was a private owned company which established in 1993.

♦  We are one of the earliest manufacturers specialized in design and the production of the transformer and reactors.

♦ Through 23 years efforts, we have become a quite scaled and powerful one renowned in the industrial.

At present, the factory is devoting to provide quality products with substantial price for nearly 100 

factories at home and abroad.

♦ In addition, the products are exported to more than 35 countries such as Hong Kong, Taiwan, Southeast Asia, Europe, North America, South Africa, Russia, Brazil etc.

♦ Our products are deeply appreciated by our customer.We always try our best to meet our customers satisfaction.

Why Us?

1.Quality assurance: All the transformers will go through lots of tests carefully before dispatch: Raw material check, Winding test, Assemble test, Painting check, Nameplate check and routine tests.

2.Competitive production capacity: monthly production more than 600sets

3.Manufactuer's price: Factory direct sale, most competitive price

Production Workshop:

 ISO9001&CE Certifications:

Customers Visiting:

1. Your inquiry related to our product & price will be replied within 24 hours.

2.  Well-trained & experienced staff are to answer all your inquiries in English.

3.  Customized solution & perfect after-sale service.

4.  Your business relationship with us will be confidential to any third party.

5. Strict Test before Delivery&Factory Quality Control

6. OEM is availabe as customzied design

7. 1 year warranty after the delivery of goods