Rockwell Automation 7000A PowerFlex Medium Voltage AC Drive (A Frame) - ForGe Control (PanelView 550) - Manual (Page 134)

4-8
Component Definition and Maintenance
7000A-UM151D-EN-P – March 2013 7000 “A” Frame
PowerCage™ A PowerCage is a converter module, consisting of the following elements:
• epoxy resin housing
• power semi-conductors with gate driver circuit boards
• heatsinks
• clamp
• snubber resistors
• snubber capacitors
• sharing resistors
Each drive consists of three PowerCage rectifier modules and three
PowerCage inverter modules.
AFE type rectifiers use SGCTs as semi-conductors.
All inverter modules use SGCTs as semi-conductors.
The size of the PowerCage will vary depending on the system voltage.
The power semi-conductor usage in the converter section is as follows:
Configuration Inverter SGCTs Rectifier SGCTs Rectifier SCRs
2400V, AFE 6 6 0
3300/4160V, AFE 12 12 0
6600V, AFE 18 18 0
A T T E N T I O N A T T E N T I O N To prevent electrical shock, ensure the main
power has been disconnected before working on
the converter cabinet. Verify that all circuits are
voltage free using a hot stick or appropriate
voltage-measuring device. Failure to do so may
result in injury or death.