Question
Download Solution PDFWhich is the most serious problem in vacuum circuit breaker?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCurrent chopping in circuit breaker is defined as a phenomenon in which current is forcibly interrupted before the natural current zero.
We can derive the voltage across the capacitor during current chopping
\(\frac{L{{I}^{2}}}{2}=\frac{C{{V}^{2}}}{2}\)
\(V=\frac{1}{\sqrt{L/C}}\)
Current Chopping is mainly observed in the vacuum circuit breaker and air blast circuit breaker. There is no such phenomenon in oil circuit breaker.
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