MAGNETIC SHIELDING OF THE DEVICE OVER CURRENT PROTECTION SYSTEM

摘要

PURPOSE: An overcurrent prevention system of a magnetic field shielding device is provided to automatically control the capacitance of coils lest the amount of current in the magnetic field shielding device exceed a specific level. CONSTITUTION: A sensing unit senses current flowing in a cable and capacitor of a magnetic field shielding device. A range setting unit checks the amount of the said current and controls the amount of the current within a setting range. A transmission unit transmits and receives current according to the determination by the range setting unit. [Reference numerals] (AA) Area B; (BB) Area A