Buffalo Power Electronics Center, Inc.
Manufacturer of Original Westinghouse Rectifier Products

Some typical applications for upgrading may be the following:
 

RATING INCREASES:

This can involve system DC voltage increases or DC current increases.  Such investigations would look at all system components including Power Semiconductors, Transformers, Cooling Systems and Control Systems.
 

CONTROL MODERNIZATION:

This may include modernization of existing control systems such as replacing analog Saturable Core Reactor or Self-Saturating Reactor Controls to microprocessor based PLC control.
 

FAULT SYSTEM UPGRADES:

This can involve modernization of existing fault control and annunciation systems to microprocessor based PLC systems.  This will allow easier communication with customer SCADA or DCS systems and provide more operator  flexibility.
 

COOLING SYSTEMS:

This may include modifications to rectifier or transformer cooling systems to change the cooling method or increase capacity.
 

MERCURY-ARC RETROFITS:

BPEC makes a line of tube-kit replacements for old Westinghouse mercury-arc rectifiers.
 

FILTER SYSTEMS:

BPEC can analyze and recommend modifications to existing  rectifier system PF correction and harmonic filtering systems.