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When it comes to the standard materials used in many transformers, we see metals and alloys leading the list. They, however, also caused issues with power losses and low efficiency, as their large physical dimensions and hardness failed to cut back energy losses without costly insulation and power-saving mechanisms in place. Cold rolled grain oriented (CRGO) silicon steel is specially rolled at room temperature to lower the temperature and maximize permeability, which allows for a highly efficient operation.
The best way to avoid the issues of inefficiency and energy losses is by choosing the innovative Transmart electrical silicon steel technology for your operations.
Here are 7 reasons why CRGO silicon steel is the best choice for transformer core material in terms of efficiency and productivity.
CRGO electrical steel is highly permeable to lower inductions and excitation currents. The efficiency of a transformer is directly affected by the material of its core and thanks to the high magnetic permeability of electrical silicon steel in the direction of rolling, it needs less magnetizing current to activate the magnetic field.
The Transmart CRGO electrical steel faces fewer energy losses due to the fact that the magnetism generated by the relatively low magnetizing current is directly utilized to run the magnetic field through the transformer.
Due to the stiffness of the standard materials and alloys used in transformer cores, operations were riddled with issues of inefficiency as a result of heavy energy losses. Hence, the need for a softer metal core was felt, and for a long time, iron was used as a substitute. However, while being relatively elastic, the impurities in iron also made it a weaker material and its corrosiveness significantly reduced the life of transformers using iron cores.
That's when adding silicon to it enhanced its efficiency and longevity and thus, the cold rolled grain-oriented, CRGO silicon steel was formed.
The high mechanical flexibility of CRGO electrical steel increases the life of the transformer as it can handle high levels of strain and retain its original condition in a linear manner.
The lamination factor of silicon steel is exceptionally high, meaning that it allows for more compact designs which help businesses save money by using fewer materials. The high stacking factor also allows low eddy currents and hysteresis losses. This makes CRGO silicon steel lamination of transformer cores much more energy and cost-efficient.
Due to the high magnetic permeability, elasticity, and stacking factors of CRGO electrical steel, the net power losses of the transformer operations using Si-Fe alloys are significantly reduced. Power losses directly affect the efficiency of a transformer as it causes the operation to require more input while producing less output.
The efficiency of the transformer is heavily enhanced by opting for an electrical silicon steel core, thus maximizing the productivity and in turn profit of the operation.
A low resistivity for a transformer core means higher eddy currents and hysteresis losses, in turn causing lower productivity and financial losses.
The Transmart electrical silicon steel has a very high resistivity value when compared to other materials used in transformer cores. This high resistivity allows for a smaller eddy current component and fewer hysteresis losses for the transformer.
Heat isn't the only form of energy loss in transformers. A noisy transformer core is also less efficient as it loses energy in the form of noise waves. This loss happens due to the property of magnetostriction.
Magnetostriction is a phenomenon that takes place when the transformer converts electrical energy into mechanical energy. However, higher magnetostriction requires a higher number of vibrations, which in non-silicon-containing cores, can cause a loud noise. Silicon in the CRGO silicon steel helps lower the magnetostriction and reduce the losses occurring in the form of noisy vibrations.
A higher temperature in the core of the transformer can cause damage to the materials therefore transformer cores need to be below curie temperatures. Iron alone has a very high curie temperature but by converting it into an electrical silicon steel alloy with the addition of semiconductor silicon, the Curie temperatures significantly drop, allowing for more spontaneous magnetism and higher output generation.
The temperature of CRGO silicon steel is further reduced by cold rolling it at 25°C. This process reduces both the temperature and the thickness of the electrical silicon steel and makes it more durable.
The cold rolled grain-oriented CRGO silicon steel is an energy-efficient way for businesses to reduce their net losses and generate a higher, more optimized productivity.
With the features mentioned in this article and a lot more, silicon steel is the best option for a smooth and efficient business operation!
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