Doble puts the industry’s most comprehensive offering of transformer condition assessment solutions at your fingertips. We are here to support you from the field through the corporate office with our unparalleled portfolio of diagnostic equipment, services, training and knowledge. Our solutions are backed by our team of engineers and chemists, and enhanced by the collective knowledge of the dobleDATABASE which includes over 55 million data points of benchmark data collected over decades.

Diagnostic Equipment

Tx-Support-Diagnostic-Equipment-Services-525pxWhether you need to test one asset or know the condition of your entire fleet, Doble has a complete range of equipment to support your condition-based maintenance programs. From the revolutionary M7100 High Voltage Asset Analyzer through dobleARMS®, our asset risk management system, Doble has the diagnostic devices and systems you need to understand the health of transformers.


Comprehensive Consulting & Testing Services

Tx-Support-Comprehensive-Consulting-and-Testing-Services-525pxWhen you need to manage asset risk across a fleet or on a problem transformer, Doble provides an independent, expert opinion enabling critical decisions to be made with confidence. Doble’s transformer engineers have extensive transformer fleet health assessment and forensic analysis consulting experience as well as specification writing, factory audit, design review, factory inspection & test witnessing when purchasing new transformers.  We can also provide the full range of off-line electrical and in-services tests.


Laboratory Services

Tx-Support-Laboratory-Services-525pxDoble has been providing laboratory services to the electric power industry since the 1930s. Doble’s labs perform over 200 different types of analytical tests on liquid and solid insulating materials. Doble lab analysts are considered to be the preeminent experts in DGA, oil quality and corrosive sulfur analysis.


Client Services

Tx-Support-Dynamic-Support-Services-525pxAccess expert consultation with a dedicated Doble Principal Engineer. Your engineer can consult with you on testing procedures, electrical test data analysis, apparatus maintenance and more. This is one of the benefits of a contract with the Doble Client Services Group. Additional benefits include on-site training, the AskDoble technical forum, and access to client only educational events including the Client Committee Meetings and the International Conference of Doble Clients.


Knowledge Community

Tx-Support-Knowledge-Community-525pxKnowledge is power. Doble offers a variety of transformer-related training courses and seminars throughout the year. Options include the Life of a TransformerTM Seminar, seminars on transformer condition assessment using laboratory diagnostics, transformer factory test training, client field seminars, committee meetings and conferences, web-based training, and on-site training tailored to your team.


Solutions Catalog


M7100 Analyzer
DTA Software
doblePRIME Delphi
doblePRIME PD-Guard
Field Force Automation
Test Data Management

Doble Client Committee Meetings & Conference

Doble Client Committee Meetings

Doble Engineering Company

Doble Engineering Company