ABSTRACT: That this dissertation is designed is 100A three pole AC Contactor, The base of draing lessons from the analysis prototype of a machine being living is gated off .The AC- contactor sees from the construction primarily be put out by the head of the system of arc, electromagnetism system and Put out arc system three parts constituent. The main substance designed is : Contact finger system design together with calculation ,Put out arc system design together with calculation and electromagnetism system design together with calculation . On the basic of working characteristics of Ac contactors and design principles. The favorable effects like energy conversation and noise reduction come from the application of energy saving technology of AC contactors were put forward. The design, operation principle, analysis and conclusion of the novel AC contactor are also given. This AC-contactor’s exploits are that it makes use of alternating current for suction, keeping magnetic force eternally, capacitor discharging and releasing.
Key words: AC contactor electric arc contact electromagnet energy saving