HANNOVER MESSE 2020, 20 - 24 April
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Relay for Energy Flow EFR4000IP

Optimieren Sie den Verbrauch selbst erzeugter Energie

Logo ZIEHL industrie-elektronik


ZIEHL industrie-elektronik

Exhibitor details
Exhibitor details
Logo Relay for Energy Flow EFR4000IP

Product description

Relays for energy flow EFR4000IP from ZIEHL industrie-elektronik monitor the current flow between public power grid and generating plant / consumer. Operation is made comfortably via integrated webserver or directly at the device. Measured values are displayed nearty 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. The EFR measures the energy flow in all 3 phases and calculates the mean value. Is sufficient own power left, the EFR4000IP switches on up to three consumers and ensures that the power is consumed in the house. This is relatively simple if a PV system feeds uniformly under a clear sky and consumers with constant power consumption, such as heat pumps or heating elements, are connected. Particularly suitable are consumers that consume a lot of energy and can be switched frequently, for example boilers. It becomes more complicated when the generation varies because of clouds before the sun and consumers do not continuously draw current as washers, dryers, irons or stoves. The analog output can regulate a consumer stepless and thus achieve a yet higher rate of own consumption. When using phase angle controls the specifications of the grid providers have to be obeyed. Energy flow is always evaluated and displayed, as seen from a power meter for purchasing energy: purchase from public grid is positive, fed in energy reduces the bill and is therefore negative (- sign). The EFR4000IP can optimize the consumption of own energy even under difficult conditions.

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