Protection and monitoring for power grids
For power supply companies and distribution network operators, reliable system operation is the top priority. A power outage can result in high costs for corporate customers, for example due to production plant downtime, as well as a reduced quality of life for private customers – and an image problem for grid operators and communities.
Protection against lightning and surge damage is essential for grid and supply reliability. And with increasing diversification in power generation, the requirements for protection and monitoring measures are becoming more complex. Below, we provide an explanation of what needs to be taken into account.
The power grid is becoming more intelligent – and more sensitive
The power grid of the future will feature predominantly decentralised energy generation. Distribution grids receive green electricity from various sources, such as photovoltaic and wind turbine generator systems, and transport it in all directions. This resulting multi-directional flow of energy places new challenges on distribution grid operators. In order to be able to continue to operate the power grids reliably, they must be developed and controlled intelligently.
This enhancement is associated with an increasing proportion of sensitive electronic components. The result is an increased risk of damage to electrical and electronic equipment:
- Lightning interference
- Surges
- Electromagnetic interference
- Arc faults
For you as a planning engineer or operator, this entails an increased focus on system protection. With our modern protection concepts for intelligent telecontrol, information and communication technology, we ensure the comprehensive protection of central facilities and systems in the energy industry.
Protect intelligent transformer substations. Safeguard supply.
Local transformer substations are an important link at the interface between medium and low voltage. If they have core components such as remote-controlled switch disconnectors and circuit breakers, controllable local distribution transformers, telecontrol functions and communication and control equipment, they are referred to as intelligent transformer substations.
Our concepts and products protect the sensitive electronics of intelligent transformer substations against damage caused by lightning and surges. We are a competent partner and solution provider – for electricity grid operators and power suppliers as well as for electrical consultants and installation companies. Contact us so we can support you in maintaining constant availability, avoiding economic losses, and safeguarding your personnel resources. So that you can also ensure the safety of the people working on your system, you will find a comprehensive range of protective clothing and equipment in our safety equipment section.
Product models
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961305
DEHNventil ACI
Three-pole, Type 1 + 2 + 3 combined arrester for TN-C systems. With integrated ACI switch/spark gap and RADAX Flow technology for maximum system availability.
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961405
DEHNventil ACI M TNS
Four-pole, spark-gap-based, Type 1 + 2 + 3 combined arrester with integrated ACI switch / spark gap. Maximum system availability thanks to RADAX flow follow current limitation. Enables the protection of terminal equipment.
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961205
DEHNvenCI 255
Single-pole, spark-gap-based, Type 1 + 2 combined arrester with integrated arrester backup fuse. Maximum system availability thanks to RADAX flow follow current limitation. Enables terminal device protection.
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952100
DEHNguard S ACI
Single-pole, Type 2 surge arrester, with integrated ACI switch/spark gap combination. With plug-in protection modules and Thermo Dynamic Control.
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927244
BLITZDUCTORconnect
Space-saving, modular combined arrester with push-in connection terminal and status indication for protecting one pair of unearthed balanced interfaces. With signal disconnection for maintenance purposes.
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929161
DEHNpatch Class EA
Universal, space-saving combined arrester with RJ45 connection system and status display. For the protection of Ethernet applications. With powerful gas discharge arrester and protective diodes, fully shielded adapter design, optional earth connection.
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910710
DEHNrecord condition monitoring unit
DIN-rail-mounted device set with integrated visual transmitter/receiver and reverse unit for condition monitoring of BLITZDUCTORconnect and DEHNpatch arresters. Indication via LED group display combined with remote signalling.
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929039
DEHNgate
Surge arrester with SMA connection and integrated spark gap. Remote power supply possible.
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819674
HVI light plus set
High-voltage-resistant insulated down conductor (copper) in the supporting tube to maintain the separation distance to electrically conductive parts. With internal sealing end, EB spring element, air-termination tip and earth connection element.
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852335
Strip, HDG steel
Steel strip with zinc coating, for use in lightning protection and earthing systems.
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319209
Cross unit, StSt (V4A)
For aboveground and underground connection of round and flat conductors. Version with intermediate plate and screws.
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625151
Type Z earth rods
For establishing earthing systems for down conductors or transformer stations. With self-closing coupling, without thickening of the cross-section at the coupling joint, with triple knurled pin. Made of HDG steel.
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620902
Earth rod, StSt, Type AZ
For establishing earthing systems for down conductors or transformer stations. With self-closing coupling, without thickening of the cross-section at the coupling joint. Type AZ with offset knurled pin.
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610020
Earth rod connection clamp V4A
For the cross and parallel connection of round conductors, flat strips or cables to earth rods, with four screws.
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557125
Anti-corrosion tape
For the protection of underground connections, such as clamping and screw connections. The permanently plastic anti-corrosion tape, petrolatum-coated on both sides, effectively prevents the penetration of dirt and moisture.
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478011
Fixed earthing point, StSt
Corrosion-free connection of the down conductor. For protective equipotential bonding and/or functional equipotential bonding for installation in the formwork. Type M version with connecting shaft and M10/12 connection thread.
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478129
Fixed earthing point clamp
For connecting round and flat conductors to fixed earthing points with thread. Made of stainless steel (V4A). Suitable for installation on the rear side without connecting shaft. Light design, with connection thread.
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472237
Equipotential bonding bar, Cu
For industrial applications, with M12 connections for functional equipotential bonding and lightning equipotential bonding. With UP insulator and thread, UV-stabilised, halogen-free. Suitable for use in hazardous areas.
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766480
Inspection camera
Set with wireless digital camera for visual inspection of electrical systems. Simple control via app. No need to isolate the system.
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767920
PHE III voltage detector
Capacitive voltage detector for verifying a dead condition on all poles at the work locations in electrical installations.
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DEHNcare Outdoor
Arc-fault-tested protective clothing in a cool design. HV version in yellow or orange for use in outdoor areas.
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Downloads
| Brochure | DEHN protects intelligent power grids | Security of supply today and tomorrow thanks to lightning and surge protection | |
| Flyer | ACI technology | Safety at the highest level! | |
| Brochure | CI technology – integrated backup fuse | More safety in switch cabinet construction | |
| Brochure | Power quality in a low-voltage system | DEHNrecord Smart Device | |
| Brochure | System protection | for building technology and measuring and control systems | |
| Brochure | DEHNrapid LSA | Modular lightning and surge protection | |
| White paper | Protecting intelligent transformer substations | Lightning and surge protection | |
| Brochure | Isolated and insulated lightning protection | Professional design and dimensioning | |
| Flyer | HVI light plus | The all-rounder in insulated lightning protection. |
DEHNrecord Smart Device (SD)
Discover exciting features and convincing facts about our multifunctional measuring and analysis device for monitoring power quality in low-voltage systems.
References
NETZE BW
Find out here how we equipped the largest grid operator for electricity, gas and water in Baden-Württemberg with a future-proof solution for monitoring grid quality.
DEHN solution
Power quality monitoring for transformer substations
DEHN products
DEHNrecord SD
IDS GmbH
Our sophisticated lightning and surge protection concept for the compact ACOS 730 small telecontrol unit from IDS explained in detail.
DEHN solution
Protection concept for network control technology and station automation
DEHN products
DEHNguard
DEHNrail
BLITZDUCTOR XT/SP
DEHNgate
DEHNpatch
Ingenieurbüro Pfeffer
The Ingenieurbüro Pfeffer engineering office relies on our comprehensive protection concept to safeguard its intelligent transformer substations against damage caused by lightning and surges.
DEHN solution
Protection concept for intelligent transformer substations
DEHN products
DEHNvenCI
DEHNrail
BLITZDUCTOR XT
DEHNpatch
DEHNgate
Our services
We can provide support for your project from the planning to the implementation and beyond. Take advantage of our wide range of practical tools and services.
DEHN Engineering Services
We create the entire lightning protection concept – from the risk analysis and earthing simulation to budget planning – all precisely tailored to your project, and standards-compliant.
More about DEHN Engineering ServicesDEHNarX
We review and optimise existing protection measures against arc-fault hazards and recommend state-of-the-art improvements.
More about DEHNarX
Any questions about protecting
power grids?
We are happy to answer any questions you may have on the topic of the battery storage systems.
You can reach your contact person at [email protected].