5 thoughts on “What is the difference between DC elevator and AC elevator”
Bertha
Of course, the difference between the traction machine. The elevator's running curve is smooth from zero -speed to rated speed, which requires the speed of the traction machine to achieve a variable change, and this gear shift is better controlled. The speed of the DC motor is controlled by variable flow, the AC motor is controlled by transformers. The current elevator is usually controlled by VVVF, which is controlled by regulating frequency and frequency. In recent years, the universal traction machine of elevator companies is VVVF permanent magnet synchronous traction machine, which is the motor rotor is permanent magnet, which achieves synchronous control. What I have to say is that the eternal magnet uses rare earth materials, which is why rare earth price increases, and elevators also increased prices.
The DC elevator uses permanent magnet brushless motor. It is more expensive. He is currently only used for high -speed ladder, but this is the direction of development. His energy -saving effect is very good
Of course, the difference between the traction machine. The elevator's running curve is smooth from zero -speed to rated speed, which requires the speed of the traction machine to achieve a variable change, and this gear shift is better controlled. The speed of the DC motor is controlled by variable flow, the AC motor is controlled by transformers. The current elevator is usually controlled by VVVF, which is controlled by regulating frequency and frequency. In recent years, the universal traction machine of elevator companies is VVVF permanent magnet synchronous traction machine, which is the motor rotor is permanent magnet, which achieves synchronous control. What I have to say is that the eternal magnet uses rare earth materials, which is why rare earth price increases, and elevators also increased prices.
The DC elevator is gearless (high -speed ladder ultra -high speed)
The AC elevator is gear (low speed medium high speed)
The DC elevator uses permanent magnet brushless motor. It is more expensive. He is currently only used for high -speed ladder, but this is the direction of development. His energy -saving effect is very good
This data comes from Baidu Map, and the final result is based on the latest data of Baidu Map.
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