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在广泛开展节能节电活动中,李子垭煤矿电工班,对4L—20/8型空压机拖动电机转子串电阻起动,用于短接电阻的交流接触器,设计制做了一套机械锁扣装置。使它吸合锁扣后,在长期运行中吸合线圈断电,不再消耗电能並消除了噪声。具体作法是:在交流接触器动铁芯的上端加装活动扣板条,定铁芯上方加装杠杆扣板条,当接触器吸合时能可靠地自动扣紧。铁芯闭合间隙小于1mm,不影响主触头的接触压紧力要求。杠杆扣由小型电磁铁牵动,实现了
In a wide range of energy-saving energy-saving activities, plum Ya coal mine electrician, on the 4L-20/8 air compressor drag motor rotor resistor string for short-circuit resistance of the AC contactor, the design made a set of machinery Locking device. After it latches the latch, the pull-in coil is de-energized during long-term operation, no longer consuming power and eliminating noise. The specific approach is: the AC contactor movable core installed at the top of the activity buckle slab, fixed iron core above the installation of the lever buckle slats, when the contactor can be automatically clamped tight. Iron core gap is less than 1mm, does not affect the contact pressure of the main contact requirements. Lever deduction by a small electromagnet affected, realized