1.0Electrical Riddlehttps://electrical-riddle.com/faElectrical Riddlehttps://electrical-riddle.com/faElectrical riddle No.37 - High current circuit breakers - Electrical Riddlerich600338<blockquote class="wp-embedded-content" data-secret="JJWcJE47CH"><a href="https://electrical-riddle.com/fa/forums/topic/309/">Electrical riddle No.37 – High current circuit breakers</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://electrical-riddle.com/fa/forums/topic/309/embed/#?secret=JJWcJE47CH" width="600" height="338" title="“Electrical riddle No.37 – High current circuit breakers” — Electrical Riddle" data-secret="JJWcJE47CH" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script>
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</script>Why strong spring usually is used in high current circuit breakers? Why required forces for operation of circuit breaker shall be increased when its rated current or short circuit capacity is increased?