Under-voltage protection relay D-PRO

three-phasefor generatorsRS485

Multifunction protection relay used to provide additional generator protections in more demanding applications, such as medium or high voltage plants, or oil & gas installations. D-PRO is studied in order to expand functions and protections already included in the DST4602Evolution genset controller, enhancing its performances: it provides a can bus connection for direct communication with it. All the D-PRO measurements and alarms are shown on the display of DST4602Evolution, and the relay’s protections are directly managed by the genset controller. Alternatively, it can be used stand-alone, connecting to the external control systems by its digital inputs and outputs. This device has been designed to be placed in a control panel and can be configured/monitored through the different available communication ports. Parameters settings is directly managed by the free programming tool BOARDPRG3. Inputs and outputs -8 programmable digital inputs. -4 programmable relays (maximum 10A @ 250Vac each). -7 currents measurement inputs for external current transformers, double internal scaling system 5A or 1A. -1 current measurement input for external tore transformer. -1 three-phase four-pole voltage sensor (L1-L2-L3-N), double internal scaling system 400V (or 100V with specific option). -1 voltage input maximum 100V for the 59N protection. -8 signalling LEDs. Communication -8 programmable digital inputs. -1 USB port (Modbus RTU slave). -1 RS232 port (Modbus RTU slave). -1 RS485 insulated port (Modbus RTU slave). -1 Ethernet port RJ45 (Modbus TCP slave).