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Basic Info

Model NO.: GWB2459 etc.

Usage: Single-phase Transformer

Frequency Characteristics: Power Frequency

Shape of Core: Ring

Brand: Grewin Toroidal Transformer

Type: Toroidal Transformer

Coil Number: High Flux Density Grain- Oriented Silicon Steel

Voltage Design: Customized

Test Process: Iinductive Voltage Test, Temperature Rise Test

Trademark: Grewin Toroidal Transformer

Transport Package: Expoort Standard Carton With Srong Pallet

Specification: CE, ROHS

Origin: Tianjin

We have passed ISO9001:2015,CE,SGS approval and IEC report

1.Technical parameters
 

2.  We have abtained VDE,UL,CE,ISO9000 approval .we guarantee quality is the first.
Test process:

1). No-load test (included no-load voltage,no load current and no load loss)

2). IInductive voltage test 

3). Load test (load voltage and temperature rise

4). Temperature rise test .

5). Insulated resistance 

6).Hi-pot test 
7).Leakage indutance test 

8).DC resistance test 

9).Surface inspection.
3.customized audio toroidal transformer and solar energy transformer   Application:

1). Application:

1. audio equipment 
2. electric control
3. computer
4.instrument
5.telecommunications
6.high-end and middle-end vedio etc

2).  Advantages:

1.High quality 100% copper core
2.a full range of toroidal transformer
3.Specially sales and technical services:5-10Years
4.With 14 years' producing history in transformer induatry
5.our company have cooperated with many customers around the world and gained good reputation at home and abroad.

3).Note 
The above-mentioned toroidal transformer is frequently-used, we can also manufacture the products by customer design. And the specification is for reference, if has the change further, please take the material object as the standard. 
4).GREWIN'S Dimension :
External diameter: 40mm-300mm, height :13mm-130mm, Efficiency: 75-98% 
we can design the appropriate products according to customers' requirments such as installation dimension, input and output voltage,power...etc.)

About us:

 1. Tianjin Grewin Technology Co.,ltd. has always laying great emphasis on our core business philosophy "Quality and Honesty First ". 

2.Flow chart of trading activities:

Contact Information:       
Amy

Tianjin Grewin Technology Co.,Ltd.
Website:www.grewin-tech.com
Tel:86-22-84943756