Reduce the power supply voltage, increase the turn spacing, using a more reasonable coil series can be achieved to reduce the inter-turn electric field strength purposes. Reduce the power supply voltage, increase the turn spacing can effectively reduce the inter-turn electric field strength, to prevent inter-turn discharge, but the two parameters are often limited by electrical design parameters, can not be infinitely reduced or increased. Small vacuum induction furnace generally use a single induction coil to heat the molten metal, the maximum difference between the two terminals. Although the induction coil turns small, but the inter-turn voltage is low. Small vacuum induction furnace in the structural design, should try to increase the distance between the two terminals to prevent the electrical breakdown between the terminals.
Horno de argón de vacío eléctrico de alta temperatura
In the induction coil interchanging between the insulation material, can prevent interturnal breakdown, the physical principle of the method is as follows. According to the principle of physics, the voltage in vacuum is V and the electric field intensity between the two plates is V / h. When the thickness h and the relative permittivity ��r are filled between the poles, the electric field in the material The intensity is V / h��r. Since the relative permittivity ��r & gt; 1 of the general dielectric material, the electric field strength in the dielectric material is less than the electric field strength in the vacuum. This is the use of dielectric material to prevent induction coil interturnal breakdown of the physical principle.
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