• May 22. 2021

Recently, the first 1000-ton battery electric cargo ship "Zhongtian Dianyun 001" in the Yangtze River Basin was successfully tested in Changzhou, Jiangsu, which marked the official era of clean energy in the Yangtze River freight ships, thereby reducing the emission of pollutants at the source. The battery electrification of ships faces the challenges of complex environments, and has many strict r...

• June 04. 2021

V&T’s 1000pcs electric vehicle motor controller, help save energy and reduce emissions, let “Blue Shenzhen” put into practice. After fully electrification for both bus and taxi in Shenzhen, the electrification’s target point to dump truck. Recently, 1000 battery electric environmental protect dump trucks equipped with V&T’s electric vehicle motor controller one after another for using. It ...

• June 21. 2021

A Variable Frequency Drive (VFD) is a type of motor controller that drives an electric motor by varying the frequency and voltage supplied to the electric motor. Other names for a VFD are variable speed drive, adjustable speed drive, adjustable frequency drive, AC drive, microdrive, and inverter. Frequency (or hertz) is directly related to the motor’s speed (RPMs). In other words, the faster the f...

• June 22. 2021

There are 5 important AC drive VFD limitations that should be considered when selecting the proper VFD for motor speed control applications. A VFD is an electronic circuit that controls the speed of an electric motor by adjusting both the voltage and the frequency applied to the motor. Prior to VFDs, motor speed was controlled through inefficient voltage regulators or mechanical means – ...

• June 28. 2021

When it comes to AC drives vs DC drives, DC drives are commonly considered problematic, despite their prestige for having simple circuits, providing high start-up torque, and being ideal for applications with constant speed due to the requirement of commutators and brush assemblies in their motors. These motors can become worn over time, have operational issues, and will likely require labor to pr...

• July 06. 2021

AC drive is a device that is used to control the speed of an electric motor. The speed is controlled by changing the frequency of the electrical supply to the motor. The three-phase voltage in the national electrical grid connected to a motor creates a rotating magnetic field in it. The rotor of the electrical motor will follow this rotating magnetic field. Motor Speed Control The speed is control...

• August 06. 2021

Once a fault is detected, the following fault code will be displayed on the operation panel, the fault contact output operates, and the output to motor is disable, the motor will coast to stop. For details, refer to the following table to identify and correct the cause of the fault. Fault No.  Fault display on panel Fault description Possible causes Corrective actions 1 E.oc1 Over c...

• September 10. 2021

New energy application, energy saving inverter and consumption; User function design, process optimization, improve equipment efficiency; Applied to farmland irrigation, desert mountain desert treatment, water treatment drive, seawater desalination, etc                                        Gu...