TJ/H2b provides material and/or equipment specific diagnostic evaluations and consultation services to give as complete an analysis as possible. Substantial individual projects are routinely handled with no loss in turnaround time or quality performance. TJ/H2b has developed three proprietary diagnostic evaluations for differing types of high voltage electrical equipment: Breaker Oil Analysis ( BOA™) for oil filled circuit breakers, Tap changer Activity Signature Analysis ( TASA™) for on-load Tap Changers and Transformer Condition Assessment (TCA™) for oil insulated transformers of any size.