Wouldn't there be an AC injection from the grid side?? its effects

Question

Accepted Answer

Yes, there can be AC injection from the grid side and it can have various effects.

AC injection from the grid side refers to the injection of alternating current into a power system from the grid.
This can happen due to various reasons such as grid faults, voltage fluctuations, or intentional injection for power quality improvement.
The effects of AC injection can include voltage and frequency variations, harmonic distortion, power quality issues, and potential damage to sensitive equipment.
For example, during a grid fault, the injection of AC can lead to voltage sags or swells, which can affect the operation of connected devices.
Similarly, if there are voltage fluctuations in the grid, it can result in unstable power supply to the system.
Intentional AC injection for power quality improvement can help mitigate issues like voltage flicker or harmonics.
Overall, AC injection from the grid side can have both positive and negative effects depending on the circumstances and the impact it has on the power system.

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