What is Harmonic Analysis Distortion Limits?
What are the Harmonic Analysis Distortion Limits?
Harmonic distortion is the presence of undesirable frequencies in power system, which are often induced by nonlinear loads. These harmonics can cause
- Equipment overheating,
- Voltage distortion, &
- Other operational difficulties.
Harmonic analysis distortion limits establish permissible harmonic levels to maintain system reliability & compliance with regulatory requirements.
Voltage Distortion Limit
Nonlinear loads such as power electronic devices frequently generate voltage distortion, which is defined as departures from the ideal sinusoidal waveform.
The voltage distortion limit establishes permissible voltage harmonics to ensure equipment performance & system stability. Compliance with these restrictions is critical for preventing equipment malfunctions and ensuring consistent power supply.
Current Distortion Limit
Nonlinear loads can cause current distortion by injecting harmonics into the system. The current distortion limit determines the maximum permitted harmonic content in current waveform. It is essential to adhere to this limit in order to avoid overloading transformers & wires, minimize power losses, and reduce electromagnetic interference.
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