Toroidal magnetic ballast is a new energy-saving ballast system with silicon sodium tablets corresponding winding turns of enameled wire system made of a magnetic ballast .
As we all know , ordinary type E-shaped magnetic ballasts commonly used silicon steel core made of stacked and subsequently on the sets made by winding enameled package made . Because E -shaped silicon steel sheet iron work in the plane of the magnetic field lines are arranged unevenly sparse outer ring , inner ring density , 90 ° inside corner of the highest density , while the four outer corners surrounding magnetic flux density is small. E-shaped silicon by itself limits the mechanical properties of the magnetic flux density can not be done appoint high, so in order to reduce eddy current loss of the E-shaped silicon steel sheets , tend to be very thin film thickness of each silicon steel sheet to an insulating interlayer , this makes up the core of the duty factor , the design of the cross-sectional area to be increased to compensate for the core , a corresponding increase in the circumference of each turn enameled undoubtedly addition to increasing the silicon steel sheet and enameled sodium loss of material , the ballast volume and weight were increased , in addition, increasing the ballast itself copper loss and iron loss , which increases its power loss. Therefore, the common type of E-shaped core ballasts bulky, heavy weight , high efficiency coil resistance is low, the current high pressure sodium street lighting in the most common is this common type of inefficient ballasts.
In today's urban and rural road lighting , most luminous efficiency is higher adoption and high-pressure sodium lamps, ballasts and their corresponding sets of high and low working efficiency , energy saving or not, it's running reliability, longevity and integrated technology economic indicators , has an extremely important role in the use of new ballast is a priority. How to shorten the magnetic circuit , reducing the core size, reducing power loss ballast itself , increase efficiency , improve its cooling capacity , is ballast to explore the development work in recent years .
Toroidal winding geometry of the loop with the magnetic field lines and curves to adapt, magnetic distribution is reasonable, optimal flux , iron loss is small . Application of existing technologies annular core flux density is perfectly placed to do 1.8T less.
Toroidal main advantage is to reduce energy consumption and save the materials , made with it toroidal inductor converter low energy consumption, it is an ideal
energy-saving ballast, safe and reliable. It also has a small size , light weight , low temperature, wide dynamic , low noise characteristics
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