The most frequent questions

How is energy saved?
The energy is saved by adjusting and stabilizing the operating voltage at the optimal level. Alone the reduction of electric current by 5% reduces the current-depending  losses for  approx. 10%.

What is the situation with the system voltage?
The internationally agreed rated voltage 400/230 V with a tolerance range of ±10 % stipulated in DIN IEC 60038/ VDE 0175 allows the system voltage at the transfer point (electricity meter) to assume any arbitrary value between 440/254 V and 360/207 V.

What does this mean in practice?
Electrical equipment must be designed so as still to attain the rated levels at the minimum permissible voltage and  that the thermal stress  not exceeds with the maximum permissible voltage.

Can a possible energy cost saving be reliably indicated?
Yes, through measurements and careful analysis of the measurement results with consideration of the consumption habits.

What must be done on your part?
Information on the type of illuminant, ballast (low-loss or electronic), energy consumption (kWh), electricity price. Annual bills and installation diagrams are helpful and facilitate the elaboration of an analysis and the submission of an offer.

How is the size of the system determined?
The size is determined from a real-time measurement of the power requirement in combination with an analysis of the performance profile based on the electricity bill.

What types of energy saving systems are available?
There are systems with uninterrupted stepped switching and continuously adjustable with stabilized operation voltage and internal uninteruptible bypass.

How is the result presented?
The result has several aspects:
• Proposals for the energy saving system to be used.
• Depiction of the energy cost reduction to be achieved
• Predicted relative energy saving in per cent
• Investment costs, separately listed according to assembly cost and installation cost as well as the calculated amortization (ROI).

What are the advantages of these two systems?
• Connected systems are used when a simple, stepped adjustment of the operating voltage suffices. This does not lead to maximum energy saving, however.
• In the case of assemblies with stabilized operation voltages the optimal lower voltage limit is utilized and stabilized.
• Each desired intermediate voltage is continuously adjustable.

How do the heater, ventilation, air conditioning, etc. behave?
This equipment is not subject to any restrictions. All parameter values are also attained with the voltage stabilization. Electric motors must provide the specified power within the standard voltage.

Where are energy saving systems installed?
They are installed behind the power utility's meter, between the mains and the consumer circuit.

What happens in case of an unsymmetrical load?
In the case of three-phase currents with Y-connection and neutral conductor an arbitrary unsymmetrical, but also single-phase, load up to the level of the assembly current is continuously permissible.

Are malfunctions or other system reactions to be expected?
Our assemblies, regardless of the design, do not influence additional the waveform of input mains frequency. If operated as intended, neither radio interference nor additional harmonic waves will occur.

What does 'EMC' mean in connection with our energy saving systems?
Our systems operate strictly as transformers and are therefore insensitive to external electromagnetic influences. No interference occurs with either the mains or the equipment.








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