VFD Panel (Variable Frequency drive panel) also known as VFD Control Panel are designed to control the speed of electric motor and feed pump. They are widely used in drilling, pumping and other large machine applications. The VFD panels are widely used in extruder plants, rolling Mills, tube mills, paper mills, cable industry and CTL Lines.
Adjustment of the speed of the motor is the application, which is required in all the process industries & machinery Mfg.'s. Variable Frequency drive is used as energy saving device for some of the machines to save power during no load or it is used as final control element of the closed loop control application where the speed of the motor is changed to control one parameter. Some of the application is provided with manual speed control of the motors. These are the open loop control applications
MCC - PCC PANEL:
MCC(Motor Control Centre) & PCC(Power Control Centre) houses various starters for the various drives, motors & system control. It is manufacture in compartmentalized and non-compartmentalized constructions. Panels are manufactured in sections for a big MCC & PCC. All sections are joined together. Copper/Aluminum bus bar is provided with the Panels. In the continuous process industries down time in the starters are critical. In that case draw out type MCC is used. Same is having modules of different ratings and new modules can be plugged by removal of the exciting module.
Due to power shortages various industries run their plant on dg sets. Sometimes whole plant runs on the dg sets or sometimes partial plant is run on the dg sets. Single/bus bar Panels are provided with change over switches with Auto or Manual changeover control through PLC.