Assess the health of transformers, circuit breakers, rotating machines & ancillary substation devices

Doble’s robust diagnostic equipment and corresponding software allow you to perform routine and specialized testing on your critical assets. In fact, “Doble Testing” is the industry standard. Customers around the world use our M-Series, TDR and SFRA equipment to perform commissioning, diagnostic and scheduled maintenance testing. These asset analyzers are the cornerstone of a thorough condition-based maintenance program.


M4100
DTA Software
M7100 Analyzer
M5400
TDR9100
TDR900
Insulation Analysis Accessories
Circuit Breaker Accessories
SFRA Accessories

Doble Engineering Company

Doble Engineering Company