Toroidal transformers

NAME:Toroidal transformers

Product Description

Toroidal Transformer
This kind of toroidal transformer is widely apply to Electronic Control ,Cable TV & Digital TV ,HI-FI (Audio-Video) Equipment ,Medical Equipment ,New Electric Power Supply ,Electronic Meter & Apparatus .With their good price ,reliable Performance and Safety,High Efficiency,they sell well all over the world.

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%/PCgh

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

Operating environment
1)Temp.: The ambient temperature can not over +40 Degree Celsuis.
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