This line of power supplies was created with the aim of modernizing the technology used for the cathodic protection of structures that require protection currents up to 100A, introducing some solutions that have been developed in the last twenty years in the industrial sector: power section in high frequency FULL-BRIDGE/SOFT-SWITCHING technology (instead of the old SCR or saturable reactor technologies), microprocessor management with graphic display and digital meters, cooling in air instead of oil, protection against in/out overvoltages using varistors latest generation high energy. 

EHT is cooled by forced air and does not use oil; it can work with ambient temperatures from -10°C to +45°C and requires installation in a street cabinet, that guarantees the IP degree requested by the client. The power supply is three-phase with a 5-pole plug.

This power supply can be set to work in 4 modes: 

• constant voltage: supplies the programmed voltage (adjustable in 0.1V steps);

• constant current: d supplies the programmed current (adjustable in 0.1A steps);

• constant PD: supplies the voltage necessary to stabilize the pipe-earth DDP at the programmed value (read via Cu-CuSO4 PROBE) and adjustable in 10mV steps;

• constant PD with IBASE: stabilizes the PD, but the current never drops below the IBASE.