What type of electrical issue arises when close-coupled lines create induced voltage?

Induced voltage occurs when a changing magnetic field influences nearby conductors, resulting in voltage being generated in those conductors without direct electrical contact. When close-coupled lines are positioned parallel to each other, the electromagnetic fields from one line can affect the other, leading to what is known as capacitive coupling.

This phenomenon specifically refers to the coupling of electrical energy between circuit elements based on their proximity and the capacitance that exists between them. The closer the lines are, the more significant the induced voltage can be, typically leading to unintended operational problems or interference.

Capacitance coupling is particularly relevant in scenarios where high-frequency signals are present or in power systems where proximity between conductors must be carefully managed. Understanding capacitive coupling is essential for preventing issues related to induced voltage in electrical systems and ensuring proper function and safety in substation operations.