Well-thought-out planning is the basis for smooth project implementation and long-term operational reliability. Our experienced team develops customized concepts that ensure maximum efficiency and reliability.

We can handle everything from start to finish, as well as individual services.

We provide services across all industries.

Water and wastewater
Flood protection and dams
Electric power generation and distribution
Process engineering
About the industries

Independent planning services – Tailor-made solutions for your energy projects

We carry out individual planning in the low and medium voltage range – precisely according to your requirements. Our services are fully scalable, from the complete planning of complex systems to the partial planning of individual project sections.

Engineer involved in comparing circuit diagrams
Notebook on the desk
Engineer checks design drafts

We design various systems in the following areas:

  • Medium voltage
  • Low voltage
  • Automation technology
Engineer involved in comparing circuit diagrams

Creation and revision of maintenance plans, repair and conversion concepts, etc.

Notebook on the desk

Assistance with standardization tasks in customer systems

Engineer checks design drafts

Your advantages

Flexible planning depth

Whether as an individual service or an integral part of an overall project in switchgear construction, we tailor our services to your needs.

Industry expertise

Our expertise covers various areas of energy supply.

Individual implementation

You set the direction – we implement it. Completely open to your specifications, processes, and standards.

Our goal: Technically sophisticated, economical, and future-proof planning solutions that reliably advance your projects.

Classic planning services

according to § 55 HOAI Technical equipment

We cover all service phases, from basic evaluation to property management,
especially public tenders:

  1. Basic evaluation
  2. Preliminary planning
  3. Draft planning
  4. Approval planning
  5. Implementation planning
  6. Preparation of the contract award
  7. Assistance with the contract award
  8. Project supervision, construction supervision, and documentation
  9. Project management
Engineers meet for a sales meeting

Projects according to HOAI

Lichtenberg Dam

Rheinbach wastewater treatment plant

Rähnitz mixed water pumping station

Wedelwitz Waterworks

Flood protection SGC

Special planning services

in the areas of low and medium voltage:

We perform manufacturer-neutral, computer-aided network calculations for electrical networks up to 400 kV. Using the PowerFactory network calculation software, we analyze your network and develop suitable concepts for safe and standard-compliant operation in the medium-voltage to high-voltage range.

Our network calculation services include:

  • Network analysis and modeling, such as recording and evaluating existing network structures and performing manufacturer-neutral simulations,
  • Computer-aided network calculations,
  • Network evaluation and optimization, e.g., determining the utilization of cable and line routes, evaluating and integrating additional feeders (PV, CHP, wind), and much more.

Professional system documentation is the basis for safe operation, standard-compliant maintenance, and future expansions. We support you with the creation of complete planning and manufacturing documents—accurate, traceable, and tailored to your requirements.

Using state-of-the-art CAE and CAD software (e.g., EPLAN, AutoCAD), we create detailed technical documentation for low-voltage and medium-voltage systems.

  • Design and circuit planning, in particular the creation of circuit diagrams, overview diagrams, and connection diagrams,
  • Documentation in accordance with VDE, DIN, and EN standards, including overview and assembly diagrams (e.g., for switch cabinets, transformer stations), terminal and cable lists, labeling plans, wiring diagrams, maintenance and revision of existing documentation (e.g., in the context of conversions)

Our services are particularly useful for new construction, expansion, or conversion of LV/MV systems, as well as for the modernization of existing systems.

Wherever flammable gases, vapors, dust, or liquids are present, explosion protection measures are required by law. We support you in the safe and standard-compliant planning, evaluation, and documentation of explosion protection measures in accordance with applicable regulations.

Our explosion protection services include:

  • Consulting and preparation of explosion protection documents
  • Risk analysis and assessment
  • Ex zone classification
  • Support in selecting suitable equipment for use in Ex areas
  • Professional verification of intrinsic safety for intrinsically safe circuits

Our explosion protection measures are aimed at companies with hazardous operating areas – e.g. in industry, energy supply, warehousing, chemicals, waste disposal, or food processing.

Targeted pressure relief measures are essential in the event of arc flashes or explosive pressure events in switch cabinets and enclosures. We develop and simulate customized pressure relief channels. Our planning takes into account the specific conditions of your system as well as applicable standards or product-specific requirements from VdS or OEM guidelines.

  • Customized design
  • Mechanical and thermodynamic simulation
  • Documentation and creation of manufacturing documents

You can find more information about our pressure relief channels here.

Feeding renewable and conventional generation plants into existing grids places high demands on technology, compliance with standards, and system interfaces. We take care of the entire planning and technical connection process—from grid connection and protection technology to system integration.

Whether photovoltaics, CHP, wind power, or emergency power generators: we ensure that your generation plant is integrated into your infrastructure in a compliant, safe, and intelligent manner.

We take care of:

  • Grid connection planning including grid compatibility testing in accordance with VDE-AR-N 4105 / 4110 / 4120
  • Development of plant protection and grid protection concepts
  • Testing of selective shutdown and grid disconnection in the event of faults
  • Integration of the generation unit into control, control technology, and energy management systems
  • Technical documentation

Grounding and lightning protection systems – safety for buildings, technology, and people

A well-designed grounding and lightning protection concept reliably protects people, systems, and infrastructure from lightning damage and power surges. We support you with standard-compliant planning and expert advice – from risk analysis to complete system project planning. Our focus is on planning in accordance with current standards such as DIN EN 62305, DIN 18014, and DIN VDE 0100-410.

Our services are particularly useful in the construction, renovation, or conversion of buildings, transformer stations, and industrial facilities—anywhere where people, technology, and infrastructure need to be reliably protected against lightning and surge damage.

Lightning protection planning in accordance with DIN EN 62305

  • Development of complete lightning protection concepts for buildings and industrial facilities
  • Calculation of separation distances for protection against flashover
  • Design of the external lightning protection system (interceptors, conductors, grounding)
  • Planning of internal lightning protection (equipotential bonding, protection of electrical and electronic systems)

Grounding systems

  • Professional planning and dimensioning of the grounding system
  • Project planning in accordance with DIN 18014 and DIN VDE 0100-410 (e.g. for new buildings, transformer stations, switchgear)
  • Consideration of soil conditions, building structure, and grid configuration

Surge protection concepts

  • Planning protective measures for power supply and communication systems
  • Selecting suitable protective devices (SPD types 1–3) in coordination with the overall system
  • Integration into existing systems or as part of new designs

Risk management and hazard assessment

  • Performing risk analysis in accordance with DIN EN 62305-2 to determine the necessary scope of protection
  • Assessing the potential economic and safety-related consequences of a lightning strike

From planning to implementation

Our comprehensive expertise does not end with planning. Learn more about our services in plant engineering and maintenance.

Team meeting Project planning in engineering

Plant engineering

We efficiently implement your projects from project planning to installation.

Service

We perform the necessary testing and maintenance services to ensure the sustainable operation of your system.

Get in touch with us!

E&A Elektrotechnik und Automatisierung GmbH

Gewerbering 5 | 01809 Dohna