Reactor, also known as inductor, energized in a certain range of space to produce magnetic fields, in the transmission and distribution of power to play a protective role in stabilization: transformer is the use of electromagnetic induction to change the voltage of the alternating current, to play a process of energy conversion; the two use of the conditions of a lot of requirements for the insulating material for: flame retardant, heat-resistant, weather-resistant, insulating properties, and a certain degree of mechanical strength requirements;

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