Voltage monitoring relay RP 9811

frequency3 NOthree-phase

Standard-conforming mains and system protection With the new voltage and frequency monitor RP 9811 of the VARIMETER NA family DOLD offers a safe and standard-conforming solution for optimal mains monitoring of the energy feed to the public grid. User-friendly: The unit can be adjusted quickly and simply with only two rotary switches. Use the first rotary switch to select one of the several preset standards according to the national requirement. The mains system is selected quickly and simply on the unit using the second rotary switch. Done! Versatile - Voltage and frequency monitoring for distributed power generation systems - Additional inputs allow for the integration into your plant concepts - Large auxiliary AC/DC voltage range, advanced protection function via vector shift and RoCoF User-friendly and flexible - Adjustable with only two rotary switches - Depending on the standard or guideline, simple and easy to implement through already preconfigured parameter sets: DIN VDE 0126-1-1 (Generating systems on the low-voltage grid) VDE-AR-N 4105 (Generating systems on the low-voltage grid) BDEW-directive (Generating systems on the medium-voltage grid) CEI 0-21 (Generating systems in Italy) ÖVE/ÖNORM E8001-4-712 (Generating systems in Austria) G59/3 (Generating systems in UK) - Different settings can be made with simple menu navigation on the display - Diagnostics through multi-colour illuminated LCD displays and LED indicators