Smart measuring and monitoring

• In conjunction with the E³ and E⁴ NH fuse-switch disconnectors, sizes 2 to 3, the measured value acquisition module (MEM 1) offers a quick and easy way to retrofit the complete current measurement of the existing system.
• All data for the grid analysis is made available via Modbus
• Its compact design (installation height 40 mm) offers a wide range of installation options
• The MEM 1 has 3 voltage inputs
• Integrated protection of the voltage measurement in CAT IV

The changes in the energy supply network pose new challenges for everyone involved. New energy sources are making the generation of energy more remote, more volatile and more decentralised. The current grid status values must be combined in line with demand due to the strongly fluctuating energy flows and, with increasing e-mobility, higher consumption peaks for charging processes, in order to smartly combine supply and demand. Here, the intelligent utilisation of the existing grid structure is opposed to grid expansion and it is important to measure the grid at various neuralgic points. With the measured value recording module 1, EFEN offers you a space-saving option – for more intelligence in your grid.

• The Smart Grid Interface Module (SGIM) is used for 3-phase monitoring of up to 14 low-voltage connections
• Recording of the current energy values: voltage, current, grid frequency, phase angle, active power, reactive power, apparent power and electricity meter
• Monitoring of switch cabinet temperature and humidity
• The SGIM offers 8 module slots for application-specific configuration. These include the CPU gateway with integrated web server, GSM interface or fibre optic interface, RF interface and measuring modules for current transformers or Rogowski coils
• Load switches or circuit breakers can be controlled via an I/O module
• Internet connection via LAN, fibre optic, UMTS, LoRaWan
• Availability of measurement data on portal server
• DIN-compliant installation in the 185 mm rail system of the cable distributor or on a mounting wall
• Uninterrupted installation with ‘plug & play’ commissioning
• Industrial standard solution for nationwide roll-out
• Investment protection through retrofittability of functions

The requirements for energy distribution are changing rapidly and comprehensively in terms of utilisation, functionality and structures. To ensure reliable operation, supply network operators, industrial companies and facility management increasingly require up-to-date measured values and information about the load on their distribution networks. This information needs to be provided almost in real time in order to be able to take appropriate control measures, particularly in hot spots such as local grid stations.

The smartisation of energy distribution grids requires practical solutions for the systematic measurement of energy values: simple and uninterrupted installation in existing systems, flexibility with regard to the number of measuring points and handling without the need for extensive training. With the Smart Grid Interface Module Comfort, EFEN offers a modular system for recording electrical and other physical measured variables in distribution cabinets and cable distributors.

Individually configurable

Thanks to its compact design, the SGIM Comfort fits into the spare slot in the cable distribution cabinet and offers a wide range of possible applications. With just one device, you can carry out 3-phase monitoring of up to 14 low-voltage connections. Upgrades with measuring and communication modules complete the modular system.

Simple installation

Uninterruptible ‘plug & play’ installation under voltage on a 185 mm busbar system. In conjunction with the Rogowski coils, you have a quick and easy way to integrate the complete current measurement into your existing system at a later date – freely configurable according to your requirements. We recommend our pre-assembled E³ NH fuse-switches with integrated current transformers for a new installation.

Integrated safety

The integrated CAT IV overvoltage protection safeguards your devices. You can also rely on the protection of an integrated firewall, so that your network analysis data is protected against attacks and secured in accordance with modern transmission protocols.

• Measurements in distribution grids already show significant harmonic components, for example due to the increased use of inverters
• Small signal converters (SSC) are characterised by a high input dynamic range
• The output power is very low compared to conventional technology
• In addition, in contrast to converters, SSCs cannot be overloaded and destroyed in the event of short circuits in the secondary loop
• Used particularly in the lower distribution network levels

• EFEN offers complete lines of plug-on current transformers for primary currents up to 5,000 A as well as tube-type current transformers up to 600 A for cable measurements or for NH fuse-switches
• The current transformers are also available in a compliant version for calculation purposes, in accordance with the law on the reformation of legal measuring systems and adaptation to European jurisdiction
• Conformity-tested range of low-voltage current transformers according to module D or F