Build your installation digitally before you lay the first cable Designing, expanding or modifying an electrical installation involves uncertainty. Does the design comply with standards? Do resonance risks arise? Is safety guaranteed in the event of an arc?
With advanced simulations, we eliminate these risks. By creating a Digital Twin of your installation, we calculate scenarios that are too costly or dangerous to test in practice. We guarantee a First Time Right implementation, compliance with safety standards and an installation ready for the future.
Understanding an electrical installation is crucial to prevent breakdowns and ensure overall efficiency. Through advanced simulations, the current and future situation of the infrastructure is accurately mapped. Whether changes are planned, the system is being expanded or overall reliability needs to be optimised; simulations provide the necessary predictive data. This makes it possible to take the right measures at an early stage, apply targeted advice and thus proactively avoid unforeseen problems and costs.
HyTEPS performs Total Harmonic Distortion (THD) simulations to calculate and predict the expected harmonic distortion in the current and voltage (THDu) of your electrical installation. As installations are often modified or expanded over time, harmonic distortion can increase beyond the permitted standards (such as EN50160), leading to malfunctions or failure of sensitive equipment. Through these simulations, we identify the impact of planned modifications or new systems at an early stage. This allows us to provide timely advice on appropriate measures to limit distortion, ensuring reliable operation of your equipment and preventing unnecessary problems.
HyTEPS performs short-circuit current calculations to ensure the safety and short-circuit resistance of electrical installations (both low- and medium-voltage), preventing explosions, overheating and component damage in the event of a short circuit. These calculations are essential during the design of new installations to check that components can handle the currents occurring, but are equally important for existing installations that have been modified or expanded over time. This involves looking not only at the maximum short-circuit current, but also at the minimum short-circuit current, so that the protection always responds quickly enough. By calculating in different scenarios (mains, emergency and UPS), HyTEPS provides insight into the risks - including dangerous arcs - and targeted measures can be taken to ensure the safety of employees and prevent business downtime.
HyTEPS uses Load Flow simulations to map and optimise energy flows and voltage levels within complex, industrial installations. As modern networks increasingly include variable elements, such as solar panels and charging stations, a Load Flow analysis helps to safely predict the impact of expansions, modifications or islanding in advance. These simulations (possible for single-phase, three-phase and DC bus installations) identify potential bottlenecks, determine the ideal location for capacitor banks and enable fast, cost-effective recalculations. A properly modelled Load Flow also forms the perfect and essential basis for more in-depth research, such as arc or harmonic simulations, where HyTEPS not only provides the data but also advises on the best-fit solutions.
With resonance calculations and simulations, HyTEPS helps prevent catastrophic damage, unexplained equipment failure and costly production downtime caused by uncontrolled voltage spikes. Resonance occurs when a specific combination of inductive loads (such as motors) and capacitive loads (such as capacitors) react unstably to a small harmonic current at a certain frequency. By running simulations during the design process or with an existing network, HyTEPS can predict the operating conditions under which this phenomenon occurs. Targeted solutions can then be modelled (such as shifting the resonant frequency to a safer zone) to cost-effectively protect the distribution system before actual damage occurs.
With selectivity calculations and simulations, HyTEPS validates the safety and continuity of your electrical installations. Selectivity - also a requirement under NEN1010 - means that an installation is divided and protected in such a way that, in the event of a local fault (such as a short circuit), only the faulty part is switched off immediately, while the rest of the network continues to operate. With advanced customisation, HyTEPS helps detect hidden risks, such as long cables with high impedance that make a short circuit not strong enough to trigger regular protection quickly. This effectively prevents dangerous situations, excessive arc energy and unnecessary failure of business processes or generators (e.g. in island operation or weak grids such as on ships).
HyTEPS emphasises that expanding existing, complex electrical installations can have unexpected consequences and make a previously fault-free system failure-prone. By simulating the entire installation and its intended expansion in advance, bottlenecks and safety risks (such as short circuits or selectivity issues) under a variety of conditions can be identified in a timely manner. This enables proactive consideration of current developments such as decentralised generation, grid congestion, and e-mobility, and also helps discover smarter solutions, such as compensating for reactive current instead of installing heavier transformers. Ultimately, simulating on expansion ensures a future-proof, cost-efficient and safe installation, preventing Power Quality problems before they occur.
HyTEPS deploys dynamic Load Flow simulations to map how your electrical network behaves under continuously varying conditions, as opposed to static measurements that show only a snapshot in time. When switching on heavy generators, starting motors (which creates inrush currents), generating fluctuating renewable energy, or simply transitioning between day and night, the load is constantly changing. These dynamic situations can lead to unwanted voltage fluctuations, imbalance and frequency differences - especially crucial in isolated or weak grids such as in the maritime industry. By simulating these dynamics and related phenomena such as Total Harmonic Distortion (THD) in advance, problems can be predicted and solutions implemented, resulting in a safe and optimally performing system without unplanned outages.
With arc calculations and simulations, HyTEPS ensures the safety of employees working on electrical installations. An electric arc, often caused by human error or flaws in the installation, poses enormous risks, including extreme temperatures, pressure waves and potentially fatal injuries. By calculating in advance how an electric arc will behave in a specific installation, for both alternating current (AC) and direct current (DC), HyTEPS provides immediate insight into the resulting arc energy and the required Personal Protective Equipment (PPE). This is done in accordance with standards such as NEN 3140 and is often translated into clear safety labels on equipment, minimising risks and preventing costly damage to installations.
In today's energy transition, electrical installations are becoming more complex. The integration of power electronics, solar panels, charging stations and heat pumps creates dynamics that traditional 'hand calculations' can no longer predict. Many Technical Managers and Engineers struggle with the same questions: "What happens when I switch on this new production line?" or "Will my protection still be selective after the expansion?".
Gambling on a good outcome is not an option in electrical engineering. A faulty design leads to unnecessary downtime, dangerous situations and sky-high repair costs afterwards.
The power of prediction At HyTEPS, we believe in prevention. Our engineers use simulations not as a formality, but as a crucial design tool. Where a measurement tells you what is happening now, a simulation tells you what is going to happen. We map the invisible interactions between components - from harmonic distortion to dynamic load flows. This transforms uncertainty into hard data and technical validation. You only invest when you are sure the solution will work.
The basis of our approach is the Digital Twin. This is an exact, digital replica of your (future) electrical infrastructure. In this virtual environment, we can test infinitely without physical consequences.
Our specialists recreate your network in high-end software packages (such as Vision or DIgSILENT). In it, we enter all relevant parameters: from cable lengths and transformer specifications to the exact characteristics of your variable speed drives and generators.
Why a Digital Twin is indispensable:

We carry out a wide range of studies to ensure every aspect of your Power Quality and electrical safety.

Harmonic distortion (THD) is a growing problem due to the increase in non-linear loads such as LED lighting and variable speed drives. Too many harmonics lead to overheating of transformers, unexplained failures in sensitive equipment and a shortened lifetime of your assets.
In existing situations, we measure, but simulation is necessary in new construction or expansion. We predict the Total Harmonic Distortion (THDu and THDi) and test it against the limits (such as EN 50160 or IEEE 519). Does the simulation show that the limits are exceeded? Then we immediately design and validate the appropriate harmonic filter in the same model. This prevents you from having to apply expensive emergency measures afterwards.
A static calculation tells you whether a cable is thick enough for the average current. But your installation is not static. Motors start up(inrush currents), solar panels deliver peak power and business processes vary. With dynamic loadflow simulations, we look at the behaviour of your grid in the time domain. We analyse voltage dips when starting heavy motors, the load on transformers during peak production and the influence of day/night cycles. This is essential for optimising tap-settings on transformers and determining the right capacity for emergency power supplies (UPS/Generators).


Huge mechanical and thermal forces are released during a short circuit. Can your distributors, busbar systems and cables withstand this? A short-circuit calculation is not only a regulatory requirement, but a fundamental safety check. We calculate the maximum and minimum short-circuit currents at each point in your installation. With this, we check whether your switchgear has sufficient breaking capacity (kA). If the short-circuit current exceeds the specification of your circuit breaker, it may explode instead of tripping. Our engineers identify these weak spots before things go wrong.
An electric arc is one of the most deadly phenomena in electrical engineering. For the safety of your staff (in accordance with NEN 3140 and NFPA 70E), you need to know how much energy is released during an internal shutdown.
Our arc simulations determine exactly the incident energy (cal/cm²) at the workplace. Based on this, we recommend the right Personal Protective Equipment (PPE) and, more importantly, measures to reduce the arc energy. Think about adjusting settings of protective relays, reducing the arc duration and minimising the impact. Safety is not a coincidence, it is a calculation.


Resonance is every plant manager's nightmare. It occurs when capacitance (e.g. capacitor banks or long cables) and inductance (transformers) in your grid amplify each other at a specific frequency. The result: extremely high voltages that directly destroy components. Because resonance depends on changing grid configurations, this cannot be predicted by hand. Our software performs a frequency sweep to see where the resonance points are. We make sure your installation stays away from these dangerous frequencies, or design damping measures.
Do you want to connect a solar farm, wind turbine or large battery system to the public grid? Grid operators are imposing increasingly strict requirements (Grid Codes, RfG). You need to prove in advance that your installation will not disturb grid quality. We carry out the required compliance studies. We simulate the impact of your inverters on harmonic distortion, voltage variations (flicker) and reactive power management. With our reports, you demonstrate compliance, preventing delays in grid connection.


An expansion is never "just" an expansion. Adding a new production line or solar panels changes the impedance and load of your entire system. What was stable before can become unstable. We integrate your expansion plans into the simulation model of the existing situation. This allows you to see immediately whether the existing transformer can handle the extra load, whether the cables are not overloaded and whether Power Quality is maintained. We ensure that your growth does not become a risk.
Simulations are often seen as an additional cost at the beginning of a project. However, practice shows that it is one of the most profitable investments.
A Power Quality measurement analyses the current situation ("the patient is sick now"). A simulation predicts future behaviour ("if we do this, the patient will get sick"). Measurement is reactive or validating; simulation is proactive and preventive. We often use measurements as input to make the simulation model as realistic as possible.
Yes, especially when complex components such as variable speed drives or PV systems are present. Even in smaller installations, resonance or overloading can lead to fire or failure. We adapt the scale of the simulation to the size of your installation.
For a basic simulation, we need the Single Line Diagram and specifications of transformers, cables and large consumers. For detailed studies (such as harmonics), we also ask for data sheets of inverters and any measurement data of the current situation.
Absolutely. We often perform a 'Design Review' or 'Second Opinion' on existing installer designs. We independently review the design for Power Quality and safety, so you can be sure that the completed work meets the requirements.
Sure. This is even recommended. With a Load Flow or Harmonic simulation, we test your design in advance. This prevents you from having to adjust the installation after delivery.
Don't leave the reliability of your installation to chance. Prevent failure costs and guarantee a safe working environment with HyTEPS' simulations. Our engineers are ready to digitally build and test your installation.
HyTEPS
Beemdstraat 3
5653 MA Eindhoven