EFR4002IPR - Zero Export Device - S225763

EFR4002IPR, specifically for the use of Rogowski coils

• Measuring input: 333mV for Rogowski coils
  
• Energy flow direction sensor and feed-in limitation, Trigger time less than 0.05s
  
• Zero-Export device or Limiter less than 0.2 s
  
• PPC (Power Plant Controller) -compliant communication

Our relays for energy flow measurement type EFR4002IPR monitor the current flow between public power grid and generating plant / consumer. Operation is made conveniently via integrated webserver or directly at the device. Measured values ​​are displayed neatly arranged at device on monitor. When the own power plant generates more power than actually is consumed it often is more economical to consume the excess energy self. This is especially reasonable when the difference is high between the price you pay to the grid provider and the price the provider pays for fed in energy.

Many areas suitable for photovoltaics could not be used so far, since only a limited amount of power can be fed in at the grid connection point. In Germany new standards VDE-AR-N 4105:2018-11 allow exceeding this value by up to 66.6% or more installed capacity. The prerequisite for this is that the overbuilt power is consumed and not fed into the grid. In order to still ensure the stability of the system, this can be monitored with EFR4002IPR. The same applies to zero export, when no energy at all may be fed into the grid. In this case, the device can be used as an energy flow direction sensor (EnFluRi). The EFR4002IPR has been optimized for these functions.

Data exchange with PPC (Power Plant Controller) possible.

Functions:

• Switching of up to 3 consumers: the largest consumer, ranked 1-2-3 or combination of 3 consumers (7 levels)
• Switch on and off points. At which energy flow consumers are switched on and off again
• Switch on and off delay of consumers, minimum on time.
• Control of heat pumps (SG-ready), battery chargers, inverters