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Why an Oversized Protection CT is Dangerous | CT sizing Mistake
Автор: WattsApp with Power
Загружено: 2025-12-20
Просмотров: 149
Описание:
Protection CT Accuracy Limit Factor (ALF) and burden calculation is important.
In this video, we explain how an oversized protection current transformer can become a serious safety hazard.
How very low connected burden increases the effective ALF
How the I²t thermal limit of relay circuits is exceeded in milliseconds
You will also see how correct CT sizing—with proper burden and ALF selection—creates a safer design that protects:
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