China transformers, single phase transformer, three phase transformer

Products Information

Toroidal Transformer
These toroidal transformers rang from 15VA through 1KVA, dual primary inputs 120/240V, 50/60Hz, and dual secondary outputs ranging from 2 x 12V through 2 x 120V. We also specialize in custom designs.

Basic Data
Capacity: 20VA-5000VA
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

Material
Core : High quality cold grain silicon sheets inserted by machine, annealed by advanced vacuum annealing furnaces to improve electronic data
Bobbin : Excellent Anti-combustion
Wire Materials:
1. Copper, Aluminum, Aluminum Clad Copper.
2. The size of transformer total in Aluminum is larger than which total in Copper.
3. Aluminum instead of Copper Cost Save: 13%-35%/PCg

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

Operating environment
1)Temp.:The ambient temperature can not over +40℃。
2)Altitude: Mounting location can not exceed the altitude of 2000m
3)Relative humidity: Maximum 90%
4)The site not attack by rain and snow
5)The medium which no explosion danger, no corroding metal, no electrical breakdown

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

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

Comparison on Transformer with Toroidal, EI, R, CD Shape Core
Since 1995, 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

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

Productivity:
Toroidal/annular/ring transformer 2 million PCS annually,
EI transformer 3 million PCS annually;
Three Phase Transformer 50 000pcs annually,
Others 100 000pcs annually .

Workforce:
About 200 workers, 5 technicians, 2 senior engineers

Equipment:
Over 50 sets toroidal/annular/ ring coil winding machines, 3 EI type transformer lines, 2 sets of vacuum annealing furnaces, A set of nitrogen and hydrogen production equipment.

Warning
Under no circumstances should both ends of the fixing bolt simultaneously contact the metal chassis or framework as this would create a potentially dangerous 'shorted-turn'.

Certificate
The certificate of our transformer has CE CQC RoHs UL

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.