| Model: | PE100 |
|---|---|
| Brand: | PROSPECT |
| Origin: | Made In China |
| Category: | Electronics & Electricity / Other Electrical & Electronic |
| Label: | elevator energy , elevator parts , energy saving device |
| Price: |
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| Min. Order: | 1 pc |
| Live Chat: | Last Online:01 Apr, 2014 |
| THE ENERGY SAVING DEVICE FOR ELEVATORS
It is a national key product in new plan, and reported repeatedly by CCTV. Two hundred thousand Yuan guarantee from Ping An Insurance Company, can save 30% electricity comprehensively. Applied in more than 1000 energy conservation program of domestic and was installed in Ministry of Science and Technology and general hospital of liberation army. HOW TO GENERATE ELECTRICITY It adopts frequency control of motor speed to start the elevator and reach the maximum running speed with largest mechanical energy, before reaching the destination floor, elevator needs to reduce the speed until stop, tractor of elevator release mechanical kinetic energy during this process. Elevator is also an potential energy load, in order to drag the load in balance, the load dragged by tractor is composed by passenger car and counterbalancing section, only when the load capacity of lift car is about 50%<7 passengers when elevator has 1 ton load capacity), it can be balance with the counterbalancing section, otherwise, there will be mass difference between them, and elevator will generate mechanical potential energy when operating< heavy load down and light load up) The extra mechanical energy potential energy and kinetic energy will stock in capacitance of frequency converter DC circuit. At this time, the capacitance is just like a reservoir, the more electric energy return, the higher voltage will be <like the high water level). If we could not release the electric energy timely, it will occur over voltage, and stop frequency converter, then elevator can't work normally. Presently we adopt resistance in frequency control of motor speed to consume the electric in capacitance. However, it is not only reduce the efficiency of system, but also generate a lot of heat and make the surrounding environment in a bad condition, while elevator feedback device can solve this problem very well. |
