Voltage- and Frequency-Relay UFR1001E Grid- and Plant Protection according to VDE-AR-N 4105:2018-11, vde-ar-n 4110 and grid codes G59/3 + G83/2 with integrated Vector-Step-Relay The UFR1001E from ZIEHL industrie-elektronik monitors voltage and frequency in plants for own generation of electricity. It fulfills the requirements of VDE-AR-N 4105 and bdew for Germany, ÖVE/ÖNORM for Austria, G59/3 and G83/2 for UK and DIB V VDE 0126-1-1 for many countries in Europe with supplements VFR2013/2014 for France. The UFR1001E is a dual-channel device and thus one-fault-proof. Input-circuit, A/D-converter, processor and output-relay are doubly present. The processors control each other. The function of the output-relays and of the connected switches can be monitored with feed-back contacts. At an alarm the devices switches off and the reason is displayed with LEDs and signaled with transistor-outputs. The limits are pre-set according to VDE-AR-N 4105. They can be changed if required and be protected with a code and/or a seal. An alarm-counter stores the last 100 alarms with reason and elapsed time. In addition the time the UFR1001E has interrupted the plant is recorded. All values can be read-out with the integrated display and give the operator valuable information about the availability of the plant. With a test-button the function of the connected switches can be tested and their switching-time can be measured. The simulation displays the complete switching-time of device plus connected switches. When feeding into medium voltage, limit, hysteresis, alarm-delay and switch-back-delay can be individually set for U>>, U>, U, F

• Under and overvoltage monitoring 15…520 V
• Measuring phase-neutral or phase-phase
• Monitoring of under- and overfrequency 45…65 Hz
• Monitoring of quality of voltage (10-minutes-average)
• Monitoring of vector shift 2…65°
• Monitoring of rate of change of frequency (ROCOF, df/dt) 0,100...5,000 Hz/s
• One-fault-proof with monitoring of connected switches (defeatable when using the integrated switch of pv and battery inverter acc. to DIN EN 62109 (VDE 0126-4))
• 2 automatic restarts at error
• Passive anti-islanding protection acc. to ch. 6.5.3 and app. D2
• Switching delay adjustable 0.05 … 300 s
• Switching back delay adjustable 0 … 6.000 s
• Preset values acc. to:
• VDE-AR-N 4105:2018-11 (Pr2), VDE-AR-N 4105-2011-08 (Pr1)
• VDE-AR-N 4110:2018-11 (PR11-14) and BDEW (Pr 3-6)
• G98 (G83/2) and G99 (G59/3) for Great Britain
• ÖVE standard for Austria
• VSE/EEA-CH 2014 for Switzerland
• Alarm counter for 100 alarms (trip value, cause and rel. time stamp)
• Record of added times of alarms
• Input for standby with counter and recording of time
• Test button and simulation with measuring of switching-times
• Sealing. All values can be read-out when sealed
• Easy installation and programming with pre-set programs
• Housing for DIN-rail-mount, 105 mm wide, mounting height 66 mm