Smart earth leakage protection Electronic earth leakage relay with external transformer of the WG series Description Electronic earth leakage protection relay of the WG series, connected to the external transformers of the WG / WGC series. Superimmunized type relay with high frequency currents filtering and high immunity. True RMS measurement (TRMS). —— Data shown on the display —— Features two independent programmable outputs (main and prealarm) —— External input for remote-control functions (230 Vac) Applications The RGU-10 relays associated with WG transformers offer smart earth leakage protection. Their design features guarantee maximum security and electrical service continuity, avoiding unwanted tripping. Compatible with WGC earth leakage transformers Viewing the instantaneous leakage value on the display, together with the prealarm indicators, makes it possible to obtain information on the status of lines to be protected, and to perform adequate preventive maintenance. In addition, version RGU-10 C features RS-485 communications and, with the PowerStudio software, offers centralised supervision in real time, as well as keeping a log of historical data for future analysis. Technical features Protection Time defined: 0.02...10 s Inverse curve: Instantaneous or selective Earth leakage transformer With built-in buttons, T & R Remote control External test option Associated circuit breaker Contactor or circuit breaker + trigger coil Power supply voltage Leakage trip Disconnection of external transformer Prealarm Trip current (red display when tripped) Parameter programming Instantaneous leakage current Disconnection of external transformer Remote signaling Prealarm Display of parameters via RS-485 communication (RGU-10 C) Circuit breaker control Via an NO/NC switched relay, depending on the connection with the circuit breaker Auxiliary power supply 230 Vac (± 20%) 50 / 60 Hz (other values on demand) Output contacts Operating temperature Protection degree Standards True root mean square (TRMS) Mechanical features Electrical features IP 20 on terminals, IP 41 on back panel

Smart earth leakage protection Electronic earth leakage relay with external transformer of the WG series References Type Connections Shunt coil Undervoltage coil