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Electronic And Electrical Engineering Fuse Circuit

2014-11-02 23:40  
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Inelectronics and electrical engineering,a fuse is a type of low resistanceresistor that acts as a sacrificial device to provide overcurrentprotection, of either the load or source circuit.Basically, this circuit is an adjustable electronic circuit breaker, containing a toroidal transformer that senses 60-Hz load current. Tl has a two-turn winding for primary, and 100 turns of #30 gauge wire for the secondary. A high-low range switch selects 0.1 to 6 A or 1 to 12 A. The primary winding of Tl carries full load current and voltage;should be suitably insulated, as should be RY1.The electronic-fuse circuit  combines the properties of a current transducer and a solid-state relay to disconnect low power at preset levels. Using this circuit lets you avoid the bother of stocking and replacing fusible links.

 

 

Electronic Fuse Circuit