The invention discloses a system (Sys) and a method for automatically eliminating an excessively increased influencing voltage in an energy bus (EB) via which decentralized functional units (E) arranged in an industrial system are supplied with electrical energy, wherein: a) superordinate control system (STW) is provided which exchanges information with the decentralized functional units (E) by means of data telegrams via a data bus (CB, NB1, NB2), b) network node units (SND) are arranged sequentially between two feed points (PS1, PS2) of a ring-type energy bus (EB), which feed points (PS1, PS2) provide the decentralized functional units (E) with access to the energy bus (EB) and optionally also to the data bus (CB, NB1, NB2), c) the network node units (SND) have a controllable switching module (S) which comprises a first switch (S1) and a second switch (S2), wherein each of the two switches (S1, S2) can be used to switch access to the two feed points (PS1, PS2), d) an evaluation module (CPU, SL) is provided which measures the influencing voltage and compares it with a limiting value and/or examines the energy bus (EB) for the presence of an earth fault of one of the conductors of the energy bus, wherein, when the limiting value for the influencing voltage is exceeded and/or when there is an earth fault, one of the two switches (S2) of a network node unit (SND4) can be opened.
SYSTEM UND VERFAHREN ZUM AUTOMATISCHEN BESEITIGEN EINER ÜBERHÖHTEN BEEINFLUSSUNGSSPANNUNG IN EINEM ENERGIEBUS
SYSTEM AND METHOD FOR AUTOMATICALLY ELIMINATING AN EXCESSIVELY INCREASED INFLUENCING VOLTAGE IN AN ENERGY BUS
SYSTÈME ET PROCÉDÉ PERMETTANT L'ÉLIMINATION AUTOMATIQUE D'UNE TENSION PERTUBATRICE EXCESSIVE DANS UN BUS D'ALIMENTATION
2018-08-08
Patent
Electronic Resource
German
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