The new Transformer Bushing Monitor (TBM) system from Serveron, a BPL Global company, permits live power factor testing with no downtime, equipment removal, or off-line tests that fall short of testing online performance. Tests are conducted every five minutes using the Shering bridge voltage measurement technique to determine power factor. The system includes trending analysis and diagnostics software to evaluate power factor data for each bushing being monitored. An upgrade option for up to nine sensors interfaces with SCADA systems. The TBM Live Plus version enables continuous on-line monitoring of power factor data from your desktop.