| 摘要 |
<p>A tripping system for moulded case circuit breaker is disclosed. The tripping system comprises a micro-processor based release connected to a tripping unit, a shape memory alloy acting as interface between the microprocessor release and a tripping unit, a spiral heater component enclosing the shape memory alloy for heating the shape memory alloy on receiving current from the trip unit, and a spring capable of communicating with the shape memory alloy and the MCCB for tripping the MCCB on receiving a trip signal from the microprocessor based release. Upon receiving current from the trip unit, the shape memory alloy heats up and change the shape thereof which leads to actuation of the spring for tripping the MCCB mechanism.</p> |
