Technical datasheet REFUpmu Tasks required by law Professional   project support Power   limitation according to the directive The rules and regulations on renewable energy are constantly being updated in Germany and many other countries. The current version of Germany’s Renewable Energy Act requires all PV systems brought into operation since 31 December 2011 to take part in feed-in and network safety management. Comparable rules also apply in other countries. The issue of feed-in and network safety management is therefore gaining importance in more and more PV markets. One important measure is that the network operator can influence the power of a plant by remote control. An exception to this feature are PV plants with a maximum power of up to 30 kW, which can limit the feed-in supply to 70% of the module output. Existing PV plants with a power or 30 kW or higher, brought into operation since 1 January 2009, must be retrofitted for feed-in management: PV plants from 30 to 100 kW no later than 31 December 2013; PV plants with 100 kW and higher no later than 30 June 2012. The power management unit – REFUpmu for short – can offer you and your network operator control and regulation-functions as required under the Renewable Energy Act, like power limitation and reactive power of all connected REFUsol 003K to 630K inverters. In conjunction with our REFUlog monitoring portal, you can also display the total power output and total energy in graph format. The scope of supply of the REFUpmu can also be extended according to your preferences, by connecting additional sensors for example.

refusol.com TECHNICAL DATA REFUpmu FUNCTIONS Grid code for inverter Complies with all German low and medium voltage grid regulations (BDEW, VDE-AR-N 4105, EEG 2012) ELECTRICAL DATA Max. supply power, W Supply voltage 18 AC 115 … 230 V / 50 … 60 Hz (external AC adaptor) GENERAL DATA Operating notification Specification of power reduction Specification of reactive power Integrated interfaces Max. controllable inverters Data-logger Communication with REFUlog portal Installation Via LED (On, Operating, Error, Switching Status for power reduction) 4 digital combined inputs (stepping 0 %, 30%, 60%,...