Zero Export Device Type EFR4002IP
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Zero Export Device and Energy Flow Relay, optimization of self-consumption of self generated energy.
The successor model to our popular EFR4001IP: Relays for energy flow measurement type EFR4002IP 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 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 EFR4002IP. 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 EFR4002IP 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
- For the use of Rogowski coils, please have a look at our EFR4002IPR
NEW:
- Can be used for medium-voltage applications Connection of earthed medium-voltage transformers and series connected measuring devices
- For the German regulation "NELEV" and "EAAV"
Suitable current transformers:
- Current transormers scaleable up to 2.400 A, secondary 1 A or 5 A (for Pav,e min. class 1) for example ZIEHL Type AS or WS
- Compact CTM7, 64/1 A, Kl. 1, 0,5 VA
| Product group: | Mains Monitoring, New Products |
|---|---|
| Input/ Measured parameter: | Voltage, Power |
| Outputs: | 2 outputs, Analog outputs 0/4-20 mA, 0-10 V, Outputs/Relays, Ethernet TCP/IP |
| Supply voltage: | AC/DC 24 - 270 V |
| Design: | Mount in switchgear cabinet, Mount in circuit breaker box |
| Approval: | EAAV / NELEV, EU / UKCA-Declaration of Conformity, UKCA, Extras |
| Applications: | Wind energy plants, Plants for Generation of own energy, Pav,e monitoring, Combined heat and power plant (CHP) |
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For currents >5A current monitors require a current transformer with secondary 1 or 5 A and a rated capacity of 1.5 VA. The primary rated current must be appropriate to the max. expected current (fuse). Tube ore wound current transformers can be used.For primary rated currents of 60 to 500 A we recommend using AS tube current transformers, suitable for the Cu-rail of 30 x 10 mm or 2 x 20 x 10 mm or round conductor of 28 mm. The transformers have Class 1 accuracy and a voltage resistance of up to 800 V. When ordering, please indicate desired primary and secondary rated current.
The compact current transformer is especially suitable for use in tight space conditions. With its primary 64 A it matches perfectly the 63 A with which domestic connections are usually fused.The secondary 1 A are connected to EFR. The inputs of the EFR are preset for primary currents 60 A, changing is simple. A clip for mounting on DIN-rail is included. The transformers can be clicked together for saving space. For EFR three current transformers are required.
You found a device in that meets your requirements and you want to install it in a control panel or in the door of a control cabinet?With the installation frame of the ER series, this is possible for all ZIEHL devices in housings V4, V6 and V8 (width 70/105/140 mm).Enclosed by a high-quality frame made of anodized aluminum, all displays can be read outside the control cabinet. Switches, buttons and joystick can be operated.
Alternative
NEW: Our EFR4002IPR, specifically for the use of Rogowski coils Measuring input: 333mV for Rogowski coilsEnergy flow direction sensor and feed-in limitation, Trigger time less than 0.05sZero-Export device or Limiter less than 0.2 sPPC (Power Plant Controller) -compliant communication Zero Export Device and Energy Flow Relay, optimization of self-consumption of self generated energy.Our relays for energy flow measurement type EFR4002IPR 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 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 againSwitch on and off delay of consumers, minimum on time.Control of heat pumps (SG-ready), battery chargers, inverters
