Home About Us Products Services References Download Contacts Languages Current Measuring Device (CMDII®) Products > Innovative Devices The CMDII® can measure the currents of a three-phase system with no need for solid insulation to ground. Its main components are: three battery-less sensors (one per phase), integrated into the high-voltage circuit and crossed by the current to be measured; three receivers (one per phase), at ground potential, communicating with the corresponding current sensors through Wi-Fi connection. Its manufacturing features and operating principle allow it to easily measure also very high currents (up to 4000 A) without the restrictions due to the saturation of the magnetic core which usually occurs with traditional current transformers. Moreover, the CMDII®, unlike traditional current transformers, does not require special structures for installation since it can be mounted on existing equipment reducing, as a result, both installation costs and the area covered by the plant itself. The CMDII® is the ideal solution when protections need to be added to existing lines, since it allows carrying out that operation easily and at reduced costs. Brochure Brochure CMDII® Don't you see the brochure?Click here Owing to the constant development of our products, the information included in the brochure might be not fully up-to-date. Quick Links Download Contact us Products + Disconnectors + Switchers + Railway Electrification - Innovative Devices Current Measuring Device (CMDII®) Autonomous Operating Mechanism (AOM) Special Operating Mechanisms News 05.08.2014 EGIC summer holidays EGIC offices are closed for summer holidays from Monday August 11th to Friday August 22nd. Our best wishes for nice holidays! 05.08.2014 COELME summer holidays COELME offices are closed for summer holidays from Monday August 11th to Tuesday August 19th. We take the opportunity to wish happy holidays to 17.06.2014 FGC certification Today 17.06.2014 COELME has been approved by Federal Grid Company, the operator and manager of Russia’s unified electricity transmission 21.05.2014 Cigré 2014 From Monday 25.08.2014 to Friday 29.08.2014 We are at Cigré with our own stand (boot 377)... ...TAKE THE OPPORTUNITY TO VISIT About Us Our history Management system Our Group News Products Disconnectors Switchers Railway Electrification Innovative Devices Services Maintenance services Support services References Product certifications Company qualifications Main customers Reference list Download Products Certificates Reference list Suppliers area Ethics code Contacts COELME EGIC COELME-EGIC in the world Contact us Job & Careers Languages English Italiano Français Español Copyright © 2014 COELME S.p.A.