Anti-islanding protection relay

Ziehl Voltage and Frequency Relay UFR1001E

• Pre-configured controller set to comply with G99 settings.
• Password protected.
• For single phase or three phase systems
• Continuous monitoring of the phase and line-to-line voltage
• Measured values are continuously shown on an LED display

• 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?65ø
• 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),
• 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 (Pr3-6)
• G98 (G83/2) and G99 (G59/3) for Great Britain
• ™VE 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

Additional contactor required