用“VVVF”造句大全，VVVF造句

9、Study on Development of High Voltage Cascaded VVVF Power Unit Monitoring and Control Circuits

12、The energy-saving effect and rough calculation of AC VVVF inverter in ventilator load in practical industrical production were described.

15、Customer can choose VVVF control to control running speed, the energy saving performance is obvious. It can prolong product life and reduce the operation cost.

18、The protection circuit is playing the decisive role in the reliability of VVVF system, lengthening the life of the installment and avoiding the power tube broken.

21、采用VVVF技术对电梯开门机直接拖动，使电梯门机装置机械结构简化，关闭时噪声低，且可靠到位。

1、Therefore, it is impossible VVVF unrestricted speed.

4、VVVF system controlled by 16-bit single chip is introduced.

7、It USES PLC to process the logic control and USES VVVF to adjust the water pressure.

11、This paper introduced the actual application of VVVF inverter in the improvement of elevator system.

16、The VVVF drives in the Driver Panel control the angle motors on the airknife rigs and the horizontal motors in the Elevator/Positioner.

20、传动柜的VVVF驱动器控制气*架的旋转电机及升降定位机的水平电机。

2、On the roller with VVVF three-phase asynchronous motor design

6、First, this paper presents a brief introduce to the VVVF system's principle of work, theoretically analyzed the VVVF system's mechanical characteristics.

13、This Paper introduces the usage of a automatization system, which uses one VVVF controls many electric submersible pumps.

19、But at the same time we should note that the impact of VVVF energy-saving effect of a number of factors, if blindly selected, is likely to backfire.

3、The VVVF transformation of steel-rope tracting belt conveyer

10、The traction inverter provides VVVF three-phase ac voltage for traction motors.

22、In AC-DC-AC VVVF, We can accurately measure voltage, current, power and frequency with The HIOKI3164 and TOPVIEW31 analysis software, even if the wave is irregularities and distortion.

8、The type of quiescent VVVF inverter and design characteristic of inverter-fed motor is introduced.

23、所收录的方法涵盖异步电机调速的各种方式，包括VVVF、直接或间接矢量控制、直接转矩控制，甚至软启动。

17、The application of VVVF technique in Centralized air conditioning system is introduced. Its energy saving effect and economical effect is introduced by calculation.

5、This paper presents a double loop controller for VVVF.

14、The variable voltage variable frequency(VVVF) control of 3-phase induction motor for driving trolleybuses is expounded.