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Copper Toroidal Transformer for Audio Equipment

Basic Info

Model NO.:GWB2459 etc.
Usage:Single-phase Transformer
Frequency Characteristics:Power Frequency
Shape of Core:Ring
Brand:Grewin Toroidal Transformer
Power:50va-5000va
Power Factor:0.9 to 0.98
Horizontal:Sunk, Side Type, and Bridge
Type:Toroidal Transformer
Coil Number:High Flux Density Grain- Oriented Silicon Steel
Test Process:Iinductive Voltage Test, Temperature Rise Test
Trademark:Grewin Audio Toroidal Transformer
Transport Package:Carton
Specification:CE, RoHS, SGS, CESI and ISO9001
Origin:Tianjin
HS Code:85043190

1.Technical parameters
Power Input Voltage(V) Output Voltage(V) Dimension
OD*H(mm)
Weight (kg)
GWB50VA 220V (230V) 12V 80*38 0.74
GWB100VA 220V (230V) 12V 95*45 1.25
GWB200VA 220V (230V) 12V 112*52 2.05
GWB250VA 220V (230V) 12V 118*54 3.36
GWB500VA 220V (230V) 12V 140*65 4.2
GWB1000VA 220V (230V) 12V 170*75 7.2
GWB1500VA 220V (230V) 12V 180*85 9.75
GWB2000VA 220V (230V) 12V 185*105 12
GWB3000VA 220V (230V) 12V 200*120 16.6
GWB5000VA 220V (230V) 12V 230*135 24
Toroidal Transformer
Power Dimension (mm) Efficiency % Current Weight
GWB20VA 60*25 >82 10mA 1.200.45kgs
GWB30VA 65*35 >84 10mA 1.200.50kgs
GWB50VA 70*40 >88 20mA 1.151.30kgs
GWB100VA 85*60 >90 30mA 1.151.50kgs
GWB120VA 90*75 >93 40mA 1.102.00kgs
GWB200VA 110*80 >93 100mA 1.102.80kgs
GWB300VA 120*80 >94 150mA 1.083.50kgs
GWB500VA 130*80 >94 150mA 1.085.00kgs
GWB800VA 140*85 >94 200mA 1.086.50kgs
GWB1000VA 140*85 >95 300mA 1.058.50kgs
GWB1500VA 160*90 >95 400mA 1.0512.0kgs
GWB2000VA 180*90 >95 400mA 1.0515.0kgs
GWB4000VA 220*95 >95 500mA 1.0520.0kgs
GWB6000VA 250*95 >95 500mA 1.0525.0kgs



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 transformerApplication:

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:

NO

Step

Days need

1

Request for quotation

1 day

2

Making quotations

1 day

3

Offer and counter offer

3 days

4

Sending and receiving samples

3-10 days

5

Sample confirmation

3 days

6

Placing afirm order

1 day

7

Paying and receiving the down payment

1-4 day

8

Factory production &Quality inspection

15-20 days

9

Paying and receiving the balance

4 days

10

Delivery of goods

1 days

Contact Information:

Vic
Tianjin Grewin Technology Co.,Ltd.
Email:
tel:
MT:
Website:


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至: ISO9001,CE, ROHS, SGS approval and IEC report
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