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Device simplifies installing design and saves space with micro electronic technique
Greegoo Electric Co, Ltd. announced an integrated Control and Protective Switching Device (CPS), which integrates breaker, fuse, contactor, over-load ( over current, phase failure) protection relay, starter and isolator into one module. This device has a higher compatibility than discrete components. It effectively saved space and removed the connection-design process in installation.?
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Magnetic Latching Contactors upto 630A from 150A
Magnetic latching contactors of both block and bar mounted types are fitted with a special electromagnet which enables them to remain in the "On" position when the coil is no longer energised.
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1) Retention of the sequence memory in automatic control equipment in the event of loss of control voltage. 2) Energy saving, since the source of supply to the coil does not need to supply ....
Vacuum contactor advantages
Vacuum contactors extinguished solitary ability, good pressure resistance, high operating frequency, long life, no outside arc spray, small size, light weight, long maintenance cycle. Vacuum interrupter vacuum contactor demanding manufacturing process, if poor processes, vacuum interrupter easily fall. Contact material material is bad,.....
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Vacuum contactor Failure
Vacuum contactor is faulty, based on its ability to accurately closing, opening and securely held at closing, sub-gate position to judge. Failure of the primary circuit aspects can be found and removed from the contactor routine repair and maintenance. The main causes of common failures are as follows: Can not charged. Energy storage is not one of the more common failures vacuum contactor, especially ...
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What refers to the high-voltage contactors
High voltage contacts in mining areas, high-voltage AC vacuum contactor is a common electrical switches, mainly used as frequently or breaking the AC main circuit and can be remotely controlled, the main control object is a motor or transfor.Low capacity contactors can also be applied capacitive load circuit. DC magnetic vacuum contactor coil system operations into a single dual-diameter winding and winding diameter.
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The working principle of vacuum contactor
Vacuum contactors are usually electrically separated by an insulating frame, metal base, drive crank arm, electromagnetic systems, auxiliary switches and vacuum switches and other components. When the solenoid by the control voltage, armature drive crank arm rotation, so that the main vacuum switch contact connected, after an electromagnetic coil power, due to the opening action of the spring, the main contact breaking.
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