Toroidal/Ring/Annular/Wreathe Electronic Transformer
1) Basic Data
Capacity: 8VA-30KVA
Phase: Single
Input: AC Power with Voltages of Various Countries
Output: AC Current, Voltage, According to Customers Requirements
Frequency: 50-60Hz
Voltage Regulation: 12%-3%
Manufacture Standard: GB/T15290-94, GB/19212-2006, GB2828-2829-87
Insulation Class: B, 130 Celsius Degree; E, 120 Celsius Degree
Temperature-rise: ≤85 Celsius Degree

2) Certification: CE, RoHS, SGS, CESI and ISO9001

3) General Features:
Good Price-Function Ratio
Reliable Performance and Safety
Small Volume & Low Weight
Low No-load Losses
Low Mechanical Hum
Good Shielding Performance, Low Magnetic Leakage
High Efficiency
Low Operating Temperature-rise
Dimension Adjusted Freely
Easy to Mount & Fasten
Excellent Workmanship

4) Features of Encapsulation:
Well encapsulated by iron shell or plastic shell to adapt various outdoor hard working environment. Anti-shock, Anti-moisture, Anti-dust, High anti-strength

5) Comparison on Transformer with Toroidal, EI, R, CD Shape Core
Since 2000, we have been playing a leading role to replace the types of R, CD, EI with toroidal type for our customers from each part of the world.
Core EI, R & CD Toroidal
Dimension Not Adjustable Adjustable
Performance Average Better
Reliability Average Better
Price Expensive 10%-30% Cost Saved

6) Testing Items:
No-load Test(No-load Current, No-load Voltage, No-load Loss)
Load Test (Load Voltage, Temperature-rise)
Inductive Voltage Test
DC Resistance Test
Safety Test

7) Application:
Electronic Meter & Apparatus
Cable TV & Digital Network
Electronic Control
Medical Equipment
New Electric Power Supply
Decorative Illumination System
Security Monitor & Control System

8) Installation
Horizontal (Non-conventional-type base plate), Sunk, Side Type, Bridge

9) Productivity: Toroidal/annular/ring transformer 3.2 million PCS, EI transformer 3 million PCS annually; Toroidal iron core over 300 tons monthly.
10) Workforce: About 400 workers, 26 technicians, 2 senior engineers

11) Equipment: Over 100 sets toroidal/annular/ ring coil winding machines, 3 EI type transformer lines, 4 sets of vacuum annealing furnaces, A set of nitrogen and hydrogen production equipment.

12) Label Info:
Certificate Logo, Basic Electronic Data, Manufacture's Information, also can be printed according to customer's Advice
Bar Code available according to customer's advice.

13) Main Customer
Overseas: ABB, Denmark Foss, Netherlands Inrada, Belguim Connect System, Germany Connectronics GmbH, USA Gallien, Australia JOY, Russia Asteroid, Japan Wireless Tsukamoto, South Korea Choyang Medical
Domestic: Chonghong Electric, Tsinghua Tongfang, Hushan Electronic

14) Remark:
OEM, ODM and Custom designed drawing and samples acceptable
All data are subject to modification without notice in advance.