Transparency and efficiency in power distribution through digitalization

Klebs+Hartmann GmbH & Co. KG, Germany, Ludwigshafen


The electrical engineering professionals from Klebs+Hartmann GmbH & Co. KG are always at the forefront of technical trends – and that is why they rely on the latest technical solutions also in their own operations. Thus they can gather practical experience with new systems and also benefit from them in very tangible ways. And not least, the systems serve as demonstration objects for interested customers. At Klebs+Hartmann, as well as on the customer side, the major focus is on sustainability and energy efficiency. All relevant systems and solutions have been successfully deployed and need to undergo continuous further development at Klebs+Hartmann.


The company already implemented power monitoring according to ISO 50001 in 2012. For this purpose, the existing SIVACON S8 main power distribution was supplemented by relevant measuring devices from the SENTRON portfolio as part of an enhancement designed to make electrical and other energy flows transparent. The data are recorded by the measuring devices either directly via the current and voltage input or indirectly via additional sensors such as flow meters with pulse output (e.g. compressed air) and fed into the computer network through digital inputs (S0 impulses) from the 7KM PAC4200 measuring device via Modbus TCP. In addition the latest 3VA molded case circuit breaker generation has been added to the power monitoring system. The communication-capable models in the 3VA2 series come with an integrated metering function for the detection of current, voltage, and power values.


The essential advantages of such systematic energy management can be summarized in three points: reduced costs, higher transparency and reliability as well as statutory concessions. Lower energy costs boost profits. In nearly all companies, even those with high energy awareness, potential savings can be found in energy use. In addition to optimizing energy efficiency, systematic energy management invariably offers potential for greater transparency and reliability in power supply and utilization. This enables companies to also comply with the ISO 50001 standard, for example. Power-intensive companies that operate a certified energy management system are able to claim hardship or compensation under the German Renewable Energy Act (Erneuerbare-Energien-Gesetz – EEG). Since 2013, an auditable energy management system according to ISO 50001 is also a requirement for energy and electricity tax relief.