Question
Download Solution PDFThe minimum phase-neutral voltage at which corona starts to occur in power transmission lines is called
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCritical Disruptive Voltage
Critical Disruptive Voltage is defined as the minimum phase to the neutral voltage required for the Corona discharge to start.
When the potential gradient at the surface of the conductor becomes greater than the dielectric strength of air, the phenomenon of corona occurs.
The phenomenon of violet glow, hissing sound, and the production of ozone gas in an overhead transmission line is known as the corona.
Visual critical voltage
Visual critical voltage is the minimum phase-neutral voltage at which the visual corona starts or the appearance of the faint luminous glow of violet color all along the transmission line conductors.
Knee voltage
Knee point voltage, also known as diode cut-in voltage, is the minimum voltage at which the diode begins to conduct heavily and the current begins to increase rapidly in a forward-biased state.
Flashover voltage
The voltage at which an electric discharge occurs between two electrodes that are separated by an insulator is known as the flashover voltage.
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