用VVVF造句子，“VVVF”造句

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

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、採用VVVF技術對電梯開門機直接拖動，使電梯門機裝置機械結構簡化，關閉時噪聲低，且可靠到位。

1、Therefore, it is impossible VVVF unrestricted speed.

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

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

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

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

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.

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

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

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

23、所收錄的方法涵蓋異步電機調速的各種方式，包括VVVF、直接或間接向量控制、直接轉矩控制，甚至軟啟動。

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

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.

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

20、傳動櫃的VVVF驅動器控制氣*架的旋轉電機及升降定位機的水平電機。

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

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

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