2013年6月23日星期日

Elevator inverter principle (c)


We repair a lot of the elevator elevator inverter schematic elevator inverter for elevator and found a lot of trouble because of their work environment through high temperature components likely caused by aging, elevator elevator inverter installed in the building's topmost control room, often in the summer by sun exposure, coupled with the drive itself and the braking resistor heating, the electrical room temperature is very high, the working environment temperature will shorten the life of electronic components! Drive more obvious in this regard, the elevator electrical room ventilation problems in the design in addition to also pay attention to insulation, such as walls with hollow bricks, chamber top multi-layer design, if accompanied by an air conditioner, the drive's lifespan considerably longer !

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