Benefits:

• Spare Parts Available
• Higher Machine Performance
• Increased MTBF (Mean Time Between Failures)
• Reduced MTTR (Mean Time to Repair)
• Modern Diagnostics

SCRs and power bridges are highly reliable units with few design changes over the last 20 years and spare parts are widely available if needed. The big improvements that have been made in drives are in the drive "smarts", and these are the parts on old drives that are hard to troubleshoot, repair, and replace.

Avtron can replace the "brains" of your drive, using our AFM, often during normal maintenance outages, and give you the benefits immediately!

• SCR Bridge including SCR’s, heat sinks, and bus bars
• SCR fuses
• SCR snubbers (resistor/capacitor network)
• SCR bridge cooling fans
• Drive cabinet and associated cooling fans
• Armature current sensing transformers or shunt
• AC circuit breaker
• DC main contactor
• AC power wiring into the cabinet
• DC power wiring from the cabinet to the motor (armature and field connections)
• Tach feedback wiring from the motor to the cabinet
• Motor thermostat wiring
• Motor blower starter and wiring to the AC blower on the motor

• Drive regulator modules. Entirely replace the electronics in the drive regulator.
• Motor field controller and field power bridge. Function built into the Avtron unit.
• SCR gate pulse transformers. Replaced with modern picket fence firing type.