Products Overview

Doble Engineering Company is the world leader in diagnostic test instruments and knowledge services to the electric power industry. Our decades of unsurpassed cumulative knowledge and field testing experience have enabled us to develop diagnostic test instruments that accurately assess electrical apparatus condition. Engineered to perform consistently despite rough handling in transport and under adverse conditions, Doble instruments are legendary for reliability in the field.

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Doble has established products in the following areas:

• Circuit Breaker Diagnostics
• Continuous On-Line Diagnostics
• Insulation Analysis
• Oil/Materials Analysis/DOMINO
• Partial Discharge Detection
• Protection Diagnostics
• Surge Arresters Monitoring
• Sweep Frequency Response Analysis
• Transformer Diagnostics