Content :

The 6.6kV series medium voltage variable frequency drive from FGI featuring good human machine interface, dual loop control power supply, multiple control methods is available in multiple configurations based on motor voltage and regional requirements. Fully-integrated design includes phase shift transformer cabinet, power unit cabinet, control cabinet and a main contactor eliminating the need for a remote feeder reducing capital investment. FGI`s main breaker and high voltage motor starters with the 6600V medium voltage AC drives across a common bus in a single high quality, integrated assembly. 





Structure





HMI: Provide users with friendly all-round document operation interface, responsible for dealing with information.


Power cabinet


Each phase is connected in series by a multi-level unit;
Unit standardized structure, 3kV/6kV/10kV unit junction is the same;
The unit communicates with the control cabinet through the optical fiber to control good performance.


Control cabinet


The control core is based on DSP+FPGA, the system is powerful and can meet the customer's needs to the greatest extent;
Independent main control box, plug-in control board, easy to install and maintain;
Rich interface with multiple choices.


Operating Principle


     


The medium voltage drive is composed of switch cabinet, phase shift transformer cabinet, power unit cabinet control cabinet. Among them, the switch cabinet is different according to different sites.The equipment adopts the high-high voltage source type inverter circuit structure, the power units are connected in series, the output is superimposed into high voltage, and directly output to the high voltage motor.                               


 


3kV series MV Drives with 3 units per phase  /&nb .fgi-tech.com