Universal Test Device for Electrical Diagnostics With the CPC 100, electrical tests can be carried out on power transformers, current transformers, voltage transformers, rotating machines, earthing systems, cables, cables and circuit breakers. The patented CPC 100 primary injection test system replaces several individual test equipment, reducing training and transportation costs and minimizing test times. The CPC 100 is therefore the ideal test device for the commissioning and maintenance of the elements of the article. The CPC 100 is the basic element of various accessories. This facilitates other applications, including power factor / loss measurement and measurement of ground and line impedance. You can control the CPC 100 using the built-in control panel or Primary Test ManagerTM (PTM) software on your notebook.