For any asset that needs protecting, there are relays and schemes to protect it. From the F-series protection testing equipment, our Doble and ENOSERV software solutions, and our protection training courses, you have the tools and knowledge you need to verify that your critical assets are protected. Options are flexible so you can customize your testing program and adhere to your company’s practices and procedures, while meeting regulatory requirements.

Diagnostic Equipment & Software

Whether you are testing electromechanical relays or state-of-the-art, IEC 61850 designs, Doble has the relay test sets, accessories and software solutions you need to verify system protection. Our solutions help you verify any protection and control circuit and simulate system conditions. Our software is flexible and our equipment is modular so you can customize your testing program, adhere to your company’s practices and procedures, while meeting regulatory requirements. Choose which combinations make sense for your organization.


Dynamic Support

Access consultation and application support from a team of experienced protection engineers. Our team of protection experts has extensive practical experience throughout the industry, from the field to administration at both large and small utilities, as well as at relay OEMs. We can assist you throughout your transmission, distribution and generation applications whether they are basic or complex.


Knowledge Community

Knowledge is power. Doble offers a variety of protection-related training courses and seminars throughout the year. Options include the Protection Testing Users Group (PTUG) Meeting, the ENOSERV Client Training Conference, the Australasian Protection Testing Users Group (APTUG) Meeting, the Protection, Automation, Controls and Communications (PACC) Committee meetings and conferences, protection training courses, web-based training, and on-site training tailored to your team.


Solutions Catalog


External Amplifiers
Protection Suite Software
61850 TesT Software
F6TesT Software
Custom Options
Protection Testing Accessories

Doble Client Committee Meetings & Conference

Doble Client Committee Meetings

Doble Engineering Company

Doble Engineering Company