Zero Export Device EFR4001IP
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Article number:
S225762
Relays for energy flow EFR4001IP 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 is actually consumed, rather than selling the excess energy to the grid provider, self-consumption is often more economical. 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 allow exceeding this value by up to 2/3 (66.6%) 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 must be monitored. 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 EFR4001IP has been optimized for these functions.
Zero-Export-Device or limiter:
- Switching off the power generation system or parts of it if the permissible feed-in power is exceeded with relay K3
- Switching on consumers or reducing generators before it comes to that by means of regulating with an analogue output or switching loads with relays K1 and K2
- Energy flow direction sensor (EnFluRi sensor) and feed-in limitation < 0.1s
Suitable current transformers:
- Usual current transformers up to 2,400 A, secondary 1 A or 5 A (for Pav,e min. class 1), e.g. ZIEHL type AS or WS
- Compact CTM7 CTM7, 64/1 A, Kl. 1, 0,5 VA
- Split core KBR18S KBR18S, 60/1 A, Kl. 3, 0,4 VA (not for Pav,e)
Accessory:
NEW: Zero Export Device Typ EFR4002IP
- You want to use 3 inputs for customary current transformers with secondary 1 or 5 A?
- You want to use medium-voltage applications and connect earthed medium-voltage transformers and series connected measuring devices?
- You want to comply with the German regulation "NELEV" and "EAAV"?
Then have a look at our new EFR4002IP!
| Product group: | Mains Monitoring, New Products |
|---|---|
| Input/ Measured parameter: | Voltage, Power |
| Outputs: | 2 Ausgänge, 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: | UKCA, EU-Declaration of Conformity, Extras |
| Applications: | Wind energy plants, Plants for Generation of own energy, Heat and power plants |
Technical specifications
CAD Data
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FAQ / Product videos
Accessories
Compact current transformer CTM7
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.
Current transformer KBR 18S
The split core current transformer KBR18S is especially suitable for being subsequently mounted in existing facilities. With its primary 60 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 this value. A clip for mounting on DIN-rail is included.For EFR three current transformers are required.
Current Transformer for AC-Current Type AS
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.
Current Transformers for AC-Current Type WS
Version:
WS30/5 A
For currents >5A current monitors require a current transformer with secondary 1 or 5 A and a rated capacity of min. 1,5 VA. The primary rated current must be appropriate to the max. expected current (fuse). Tube or wound current transformers can be used. We recommend the use of WS tube current transformers for primary rated currents of 5 to 30 A.The transformers have a class 1 accuracy and a voltage resistance of up to 800 V.When ordering, please indicate desired primary and secondary rated current.
Front Mounting Kit Type ER
Version:
ER8, Housing V8, 8 TE
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
Zero Export Device Type EFR4002IP
Relay for Energy Flow, optimization of self-consumption of self generated energy. Zero Export Device.Relays for energy flow 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 exchage with PGS (Power generating system) 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, invertersNEW:Can be used for medium-voltage applications Connection of earthed medium-voltage transformers and series connected measuring devicesFor 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 WSCompact CTM7, 64/1 A, Kl. 1, 0,5 VAAccessory:Front Mounting Kit ER8 for mounting in control panels or doors