Common Bus Power Supplies Standard and High Power VFD

Common Bus Power Supplies use a common rectifier to supply power to the DC bus for all the DC-AC inverters. Power-sharing on the DC bus increases the efficiency of applications where inverters are motoring while others in the same process are generating power.

Overview

• Six-pulse, full-wave, three-phase SCR bridge rectifier unit

• Stand-alone and master-slave configurations (1000 A units only)

• Built-in AC line and DC bus fuses (400 A and 600 A units)

• Rectifier branch fuses, snubber circuit, and DC bus feedback fuses (1000 A units)

• Over-temperature sensor located in the heat sink

• RC snubber circuit for dampening and linearity of over-voltages

Typical applications for the PowerFlex 20S Common Bus Power Supplies include:

• Paper-making machines, finishing winders, calendars, rereelers

• Metal-rolling mills, slitters

• Winders, coaters, calendars

• Cranes

Product Selection