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Breakdown voltage is a characteristic of an insulator that defines the maximum voltage difference that can be applied across the material before the insulator conducts. In solid insulating materials, this usually [citation needed] creates a weakened path within the material by creating permanent molecular or physical changes by the sudden current.
1.The knee voltage or cut-in voltage is the forward voltage at which the current through the junction begins to rapidly increase. Break down voltage is the reverse voltage at which the P-N junction of a diode fails due to a sudden increase in reverse current.
The minimum voltage required to “break” an insulator by forcing current through it is called the breakdown voltage or dielectric strength. The thicker a piece of insulating material, the higher the breakdown voltage, all other factors being equal.
The breakdown voltage (BDV) of an insulating system is one of the essential parameters for the design of power transformers. It depends on the physicochemical properties of the oil and impurities that can be present as well as the arrangement of the electrodes.
Mar 20, 2021 · The minimum voltage required to “violate” an insulator by forcing current through it is called the breakdown voltage, or dielectric strength. The thicker a piece of insulating material, the higher the breakdown voltage, all other factors being equal.
For a specific piece of dielectric material and location of electrodes, the minimum applied electric field (i.e. the applied voltage divided by electrode separation distance) that results in breakdown. This is the concept of breakdown voltage.
Paschen's law is an equation that gives the breakdown voltage, that is, the voltage necessary to start a discharge or electric arc, between two electrodes in a gas as a function of pressure and gap length.
