ENDRESS Power generator aggregates catalogue Page 6
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Technology and innovation DUPLEX in a nutshell A power generator for every use! PE, inverter or plastic welding devices, electrode welding devices Yesterday: As no electronics were used with the units, asynchronous generators were needed to produce so-called “clean” current, and synchronous generators are needed to handle the “hard starts”. Today: Strong electric tools, circular saws or compressors Wall saw systems With Duplex technology, the electronic controller unit regulates itself individually to each drive engine and reacts appropriately before the engine is overstrained. In this way, reserve output can be mobilised and the Duplex generator powers even the heaviest inductive appliances and protects sensitive appliances from damage. Therefore all of the advantages of asynchronous and synchronous generators are combined in the DUPLEX system and this ends the discussion about which technology is the better, synchronous or asynchronous. Inductive consumers Ohmic consumers Advantages at a glance: • Combines and strengthens the advantages of asynchronous and synchronous generators • WCT technology: W = wear-free C = contact-free T = trouble-free • Simultaneous use by electronic and inductive appliances • Brushless, electronically regulated synchronous generator • Brushless technology - therefore 20,000 operating hours • Protection Class IP 54 — protected from dust and spray • 200% unbalanced load in actual operation • Voltage stability ±1% with 3~ generators • Up to 4 times the starting current • 100% short-circuit-proof • Distortion factor ≤ 5% Pumps, minicrane or plastering machine Electrical heater Lighting and illumination devices PC and IT systems. Complete house supply, smaller enterprises The fine distinction: The ENDRESS DUPLEX system is an intelligent excitation machine that works where carbon brushes that are traditionally wear-prone are used. In connection with the power electronics, it represents the pinnacle of modern power generation technology. Rotor head with wear-prone carbon brush operation 6 DUPLEX rotor head fitted with an intelligent excitation machine
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