linjalinjajännite

Linjalinjajännite, sometimes translated as line-to-line voltage or phase-to-phase voltage, is a fundamental concept in electrical engineering, particularly concerning three-phase AC power systems. It refers to the voltage difference measured between any two of the three live conductors in such a system. In a balanced three-phase system, the three voltages are sinusoidal and displaced from each other by 120 electrical degrees. While the voltage between any single live conductor and neutral (line-to-neutral voltage) is a primary measure, linjalinjajännite is crucial for understanding the power delivered and the behavior of equipment connected to the system.

The relationship between linjalinjajännite and line-to-neutral voltage depends on the configuration of the three-phase system. In a Wye (or star) connected system, the linjalinjajännite is the square root of three times the line-to-neutral voltage. For example, if the line-to-neutral voltage is 230 volts, the linjalinjajännite will be approximately 400 volts. In a Delta connected system, the linjalinjajännite is equal to the line-to-neutral voltage. This distinction is important for selecting appropriate electrical equipment and ensuring safe operation. Understanding linjalinjajännite is essential for power generation, transmission, distribution, and for anyone working with industrial or commercial electrical installations.