SPI1021 - Voltage and Frequency Relay - S222300

Grid- and Plant Protection According to CEI 0-21 (Italy) and DEWA-standard (Dubai) (DRRG), with integrated Vector-Shift Relay.

The SPI1021 monitors voltage and frequency in plants for own generation of electricity. It fulfills the requirements of CEI 0-21 (Italy) and DEWA-standard (Dubai) Interface Protection (IP) according to DEWA Distributed Rrnewable Resources Generation program (DRRG19, September 01, 2016).
6 selectable programs allow measuring, 3 phases to neutral (4-wire mode), 3 phases phase-phase (3-wire mode) and single phase to neutral (2-wire). The SPI1021 can monitor all decentralized power plants, photovoltaic, wind or thermal, that feed in the low or medium voltage grid. In applications with possible asymmetry >6kVA, power balance has to be monitored extra.

In programs 1-3 (3=default) the limits are preset according to CEI 0-21 (Italy), in programs 4-6 they are preset according to DEWA-standard (Dubai). They can be changed if required and be protected with a code and/or a seal.

A counter for alarms and standbys stores the last 100 events with reason and elapsed time. In addition the time the SPI1021 has interrupted the plant is recorded. All values ​​can be read displayed at the device and give the operator valuable information about the availability of the plant. The standby input allows a remote shutoff e.g. with an RCR. It can also be used to switch to an energy saving mode by a timer or a twilight switch. Number of standbys and added time are stored and can be read in the display.

Summary of the functions

When the device has been installed, a self-test starts automatically. The self-test can be repeated when required. All values ​​of the test are stored and can be read out at the display.

• Monitoring of under- and overvoltage 0/15-520 V
• Measuring of 3 phase with or without neutral or single phase
• Monitoring of over- and underfrequency 45-65 Hz
• Monitoring of quality of voltage (10-minutes-average)
• Monitoring of vector-shift (connectible)
• Input IN2 for selection of frequency window
• Input In3 for selection of mode transitory or definitive
• Input Y0/Y1 for monitoring function of connected switch (automatic detection of nc/no)
• Relay K2 picks up (on time <500ms) only at failure at switch connected to K1
• 2 restarts at switch-on error of connected switch
• Selftest with storing of values
• Switching delays adjustable 0.05…130 s
• Switching-back-delays adjustable 0…999 s
• Different switching time according to type of alarm and selected mode
• Switch-on delay 300 s
• All parameters preset according to CEI 0-21
• Alarm counter for 100 alarms with value, reason and elapsed time
• Recording of added time of alarms
• Input for standby (off time <50ms) with counter and recording of time
• Simulation for testing
• Sealing, all parameters can be read out while sealed
• Easy installation and programming with 6 preset programs
• Supply-voltage AC/DC 24-270 V
• Housing for DIN-rail-mount, 105 mm wide, mounting height 70 mm