Product Profile of Toroidal Power Transformers With Ring Type Core

Torotrans manufactures Toroidal Power Transformers with Ring Type Core. Torotrans offers Power Transformer in the range 15VA-8KVA & Low tension Current Transformers of any rating in tape wound as well as resin cast. In Toroidal Power Transformers the ring type core is made from cold rolled grain oriented [ CRGO ] Silicon steel strip without any joints and annealed for stress relief after being wound. These wound cores are then suitably insulated by class B insulation and the winding of copper wire is usually done by winding machines. The Toroidal Power Transformers find applications in Medical equipment, Audio / Video products , Motor control equipment, Lighting , Stabilized power supplies , Microprocessor based units , Battery chargers, Telecommunication products , Instrumentation , Computer and peripherals , CNC controlled machines , CRT, Robot equipment, Industrial Control Equipments, Office machines etc.

Advantages of Toroidal Power Transformers with Ring Type Core are:

• Reduced Reactance: Isolation between primary and secondary easily feasible with class B insulation which results in reduced reactance.

• Reduced Temperature Rise: Winding spread over the entire periphery of the core. This result in a larger area for dissipating the heat.

• Smaller Size and Weight: When used with a centering washer and screw / bolt, it becomes 40 % lighter and smaller.

• Low Stray Field: Approximately 85-90 % lower than conventional transformers. Since toroids have no air gaps, primaries and secondary are wound uniformly around the entire core resulting in toroid emitting very low radiated magnetic field.

• No Inherent Hum / Vibration and Low Noise: In toroid there are any air gaps and loose sheets of steel or lamination to cause vibration. Further copper winding are done on the above core so it almost completely eliminates the hum and noise

• Ease Of Mounting: Easy mounting by centering washer or Resin center potting with through hole and screw /bolt, or using bracket or combination of bracket and studs.

• Negligible ` No Load Loss ` And Excitation: In applications where a circuit is in a "stand - by mode" for a long period, the potential Cost reduction for power can be significant. Approximately 85 % at no load and 35 % under load condition.

• Suitable For Higher Frequency Supply Systems.

• Higher Efficiency: All windings are symmetrically spread over the entire round gapless core, which gives an opportunity for higher use of flux density and reduced winding resistance, thus it achieves a very high electrical efficiency.