Model NO.: 30va 100va 250va 750va 1000va 3000va 5000va 7000va
Usage: Grewin Medical Toroidal Transformer for Device
Frequency Characteristics: Power Frequency
Shape of Core: Ring
Brand: Grewin Medical Toroidal Transformer
UPS Transformer Use: UPS Power Supply, UPS
Coil Number: High Flux Density Grain- Oriented Silicon Steel
Voltage Design: Customized
Core Material: 100% Cooper
Transformer for Medical Equipment: Low Rise High Efficiency Toroidal Transformer
Leads - Length and Insulation: Secondary Windings Connections
95% Efficiency: Transformer Toroidal Price Design Manufacture
Welding Machine: China Step up UPS Toroidal Transformer for Welding
Test Process1: Iinductive Voltage Test, Temperature Rise Test
Test Process2: Leakage Indutance Test, DC Resistance Test
Trademark: Grewin Machine toroidal transformer
Specification: CE, ROHS
Origin: Tianjin
HS Code: 85043190
Name:
Mini Power Transformer,Medical Toroidal Transformer for Device
1.technical parameters
Toroidal Transformer | |||||||
Power | Dimension (mm) | Efficiency % | Current | Weight | |||
GWB20VA | 60*25 | >82 | 10mA | Â 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 Â .No-load test (included no-load voltage,no load current and no load loss)
 2.iInductive voltage testÂ
 3. Load test (load voltage and temperature rise
 4. Temperature rise test .
 5.Insulated resistanceÂ
 6.Hi-pot testÂ
 7.Leakage indutance testÂ
 8.DC resistance testÂ
 9.Surface inspection.
3.customized audio toroidal transformer and solar energy transformer  Application:
1). Application:
1. audio equipmentÂ
2. electric control
3. computer
4.instrument
5.telecommunications
6.high-end and middle-end vedio etc
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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.
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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.)
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 About us:
 1. Tianjin Grewin Technology Co.,ltd. has always laying great emphasis on our core business philosophy "Quality and Honesty First ". Due to continuous innovative research and development, our products have meet the technical standards and safety standards , which are efficient and environment-friendly. As a professional leading and a main exporter of a wide variety of electronic components in China for many years, we adhere to new products, quality to meet the needs of you and welcome all of you to negotiate
2.Flow chart of trading activities:
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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 a firm 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 |
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Contact Information:                                                      Alice Tianjin Grewin Technology Co.,Ltd. tel:86-22-84943756 MT:86-13072088960 Website: http://www.grewin-tech.com http://grewin-tech.en.alibaba.com   |
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Bao Ding Tian Wei Group Transformer Co., Ltd. , http://www.jspowertransformer.com