Ziehl EFR4002IP
Call
Do you have questions about the product?
Then talk to one of our experts now
+49 (0) 234 - 588 262 88Product description
NEW: Pav,e monitoring type EFR4002IP
- Do you want to connect earthed medium-voltage transformers and series-connected measuring devices?
- Do you want to carry out measurements in the uncounted range with 1 or 5 A current transformers?
EFR4002IP energy flow relays monitor the flow of electricity between consumers and the public power grid (at the grid connection point).
The device can be conveniently operated using the built-in web server via the IP interface or via the LCD plain text display directly on the device. Measured values are clearly shown on the display or on the screen.
Many areas suitable for photovoltaics could not be used until now, as only a limited amount of power may be fed in at the grid connection point. With the certification by VDE-AR-N 4105:2018-11, two thirds or more additional generation capacity may now be installed when monitored by the EFR4021IP than the grid connection allows. The prerequisite for this is that the overbuilt power is consumed and not fed into the grid. This must be monitored to ensure the stability of the system. The same applies to zero feed-in, when no energy may be fed into the grid at all.
ATTENTION: Even if nothing is to be fed in at all (zero feed-in), the agreed connected active power Pav,e must currently be at least 60% of the installed connected active power Pinst of all generation systems operated in the customer system, including storage, when connected in accordance with VDE-AR-N 4105. The EFR4002IP has been optimized for these functions.Pav,e monitoring and energy flow direction sensor functions:
- Switching off the self-generation system or parts of it if the permissible feed-in power is exceeded with relay K3
- Switching on consumers or shutting down generators before this happens with analog output and relays K1 and K2
- Energy flow direction sensor (EnFluRi sensor) and feed-in limitation (Pav,e) < 0.1s
Pave / P ave / P av,e
Setting options and functions:
- Connection of up to 3 loads: largest load, sequence 1-2-3 or combination of 3 loads (7-stage)
- Switch-on and switch-off points. At which energy flow consumers are switched on and when they are switched off again
- Switch-on and switch-off delay and minimum switch-on times for loads
- Control of heat pumps SG-ready.
Equipment features
- Measurement of active power 1- or 3-phase ± 99.99 MW
- Pav,e - monitoring preconfigured and with any values
- Pav,e - monitoring for compliance with the entire limit curve
- 3 inputs for commercially available current transformers with sec. 1A or 5A
- Voltage transformer can be connected, ratio adjustable
- 3 output relays
- Energy meter for supply and feed-in
- 4 digital inputs Y1-Y4 for control functions e.g. relay on or off
- Analog outputs for stepless control of a consumer.
- IP connection, integrated web server
- Query of values via Modbus TCP, SunSpec (Energy Meter)
- Universal control voltage AC/DC 24-240 V
Suitable current transformers:
- Commercially available 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
- Mini plug-on current transformer CTM7, 64/1 A, cl. 1, 0.5 VA
- Divisible cable conversion transformer (hinged) KBR18S, 60/1 A, cl. 3, 0.4 VA (Caution! Not for function Pav,e)
Accessories:
Technical data
Control voltage Us (A1, A2)
DC/AC 24 - 270 V 0/40...70 Hz, <3 W, <9 VA
Tolerance
DC 20.4 - 297 V
AC 20 - 297 V
Relay outputs K1, K2, K3
3 x 1 changer
Switching voltage
max. AC 300 V, DC 300 V
Conventional thermal current Ith
max. 9 A
Switching capacity max AC cos φ=1
2000 VA
Electrical contact life, cos φ=1
105 Switching cycles at 300 V / 9 A
Switching capacity Utilization category
AC-15 Ie = 6 A Ue = 250 V
Voltage measurement (RMS)
L1 / L2 / L3 against N
Voltage transformer
adjustable 1:1 ... 1:250
Measuring voltage phase-N
AC 10.0 ... 330.0 V, 50 Hz
Resolution
0,1 V
Maximum measurement deviation
± 0.5% of the measuring range end value, ±1 digit
Current measurement (RMS)
Via current transformers (scalable up to 2,400 A)
Rated current / resolution
AC 1/5 A / 1 mA
Maximum measurement deviation
± 0.5% of the measuring range end value, ±1 digit
Overload capacity
6 A continuous, 12 A max. 1 s
Input resistance
60 mΩ
Active power measurement
with voltage transformers from - 99.99 to 99.99 MW
Maximum measurement deviation
± 1 % of the measuring range end value ±1 digit
Analog outputs
DC 0/4/1-10...20 mA, DC 0/2/0-5...10 V
Load
≤ 500 Ω
Test conditions
see General technical information
Permissible ambient temperature
-20 °C ... +55 °C
Housing
Design / mounting frame
V8 / Installation frame ER8, 8 HP
Dimensions (W x H x D)
140 x 90 x 58 mm, installation depth 55 mm
Protection class housing / terminals
IP 30 / IP20
Mounting
Standard rail 35 mm or screw fastening M4
Weight
approx. 300 g