Toroidal transformer

NAME:Toroidal transformer

Product Description

Toroidal transformers are built around a ring-shaped core,which,depending on operating frequency,is made from a long strip of silicon steel or permalloy wound into a coil,powdered iron,or ferrite. Toroidal transformers are more efficient than the cheaper laminated E-I types for a similar power level. Other advantages compared to E-I types,include smaller size (about half),lower weight (about half),less mechanical hum (making them superior in audio amplifiers),lower exterior magnetic field (about one tenth),low off-load losses (making them more efficient in standby circuits),single-bolt mounting,and greater choice of shapes.

Application:
This kind of toroidal transformer is widely used in electronic equipment and other electronic equipment of higher technical requirements,such as computer,medical equipment,telecommunications and lighting and so on.

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

Advantages of toroidal transformers
Efficiency
Smaller in size
Lower in weight
Less mechanical hum
Low exterior magnetic field
Low off load losses
Single mounting point

Operating environment
1)Temp.: The ambient temperature can not over +40degree Celsius
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

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.