ZIEHL SPI1021 Solar IP Relay

The ZIEHL SPI1021 Solar Interface Protection Unit 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 Renewable Resources Gene-ration programme (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 de-centralized power, photovoltaic, wind or thermal plants, that feed in the low voltage and medium voltage grid. In applications with possible asymmetry >6 kVA, power balance has to be monitored extra. With the integrated certified self test, the device can be used in plants < 6kVA. In programs 1-3 (3= default), the limits are preset according to CEI 0-21. In programs 4-6 they are preset according to DEWA- standard. 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 displayed at the device and give the operator valuable information about the availability of the plant. 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. Features Monitoring of under and over voltage 15-520 V Measuring of 3 phase with or without neutral or single phase Monitoring of over and under frequency 45-65 Hz Monitoring of quality of voltage (10-minutes-average) RocoF “Rate of Change of Frequency” connectable Monitoring of vector-shift (connectible) Input IN2 for selection of frequency window Input In3 for selection of mode transitory or definitive

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