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Damping Resistors for Harmonic Filters >> System DES / DDS << General Steel Grid Resistors DE S / DDS System Power electronics, which undergo a rapid development, are used in all technical areas today. Besides their benefits of quick controllability and broad application range, some drawbacks are likewise involved. Drives with a variable speed generate sinusoidal inter ferences. Harmonic waves affect the quality of the power system and compromise its safety. The cost fac tor due to the occurring reactive power should likewise not be neglected. The increased supply of renewable energy from wind turbines and solar power generators causes fluctuations in the active and reactive power of electrical systems that in turn affect the quality and reliability of the power system. Voltage levels: 7.2 / 12 / 24 / 36 / 52kV Single- and three-phase systems High overload capacity Low maintenance High operating reliability Many types of enclosures In order to keep the power supply system stable and ensure a high operating reliability, undesired inter ference factors are eliminated or reduced by taking measures such as medium-voltage filter circuits. Filter circuits consist of inductivities, capacities and resistances to damp occurring voltage peaks. A precise adjustment of the filter circuit enables a specific inter vention to counteract the undesired parasitic portions of the power supply system. Voltage level [kV] Rated withstand voltage (50Hz, 60s) [kV] Lightning impulse voltage (1,2/50µs) [kV] Resistance [Ω] Output [kW] 12 28 75 1 - 1000 5 - 200 24 50 125 1 - 1000 5 - 200 36 70 170 1 - 1000 5 - 200 52 95 250 1 - 1000 5 - 200 << Designs Steel Grid Resistors DE S / DDS System GINO damping resistors consist of resistor packages of steel grid resistor elements. The steel alloy 1.4724 is used as resistor material. Other resistor materials can likewise be employed. The resistor elements are moun ted on insulated support brackets and are usually connected in series. Every resistor consists of one or several resistor packages that are interconnected through thermally resistant lines. The resistor packages with insulators are mounted between side plates of stainless steel. Either a single-phase or a three-phase design is possible. Resistors for indoor use are manufactured with an IP00 enclosure. For outdoor installation, an IP01 enclosure is required. For damping resistors in the medium-voltage range, the enclosures IP20 and IP23 are used only in specific cases. the place of installation. The insulators used are made of porcelain. The insulation is rated for system voltages of 7.2 / 12 / 24 / 36 / 52kV. Increased clearance and/or creepage distances may be required, depending on the prevailing climatic conditions, risk of contamination or altitude of In general, all damping resistors are designed according to customer-specific requirements, employing our standards. The design and manufacture is based on the following standards, for example: DIN EN 62271-1, DIN IEC 60815-1/2/3, DIN IEC 60529. Subject to technical changes 2011 Steel Grid Resistors DE S / DDS System << Ihr Weg zu uns GINO GmbH Elektrotechnische Fabrik, Zentrale Bonn Friedrich-Wöhler-Str. 65, 53117 Bonn, Tel. 02 28 / 9 89 86-0 Rh e Par ise r ße Kö ße A555 d er Jo se fs h hö e Siegburg ße ra St An A565 Opp ße elne r Stra Ak Bonn-Nord A555 Lie lin ve g sweg Doro thee n weg A565 Vor geb irgs Bo rn h eim er Ka i se r [email protected] · www.gino.de stra ße ing l-R ar -K B56 stra ße Straße Koblenz << FIL_gb_11/2011 Kontakt: st ra ler B9 Lievelin gs er in rse He Telefon: +49 228 98 98 6- 0 Fax: +49 228 98 98 6- 34 St ra ln st ra ße Gino AG Elektrotechnische Fabrik Friedrich-Wöhler-Str. 65 D-53117 Bonn Köln Rö m Certified according to ISO 9001:2008, IRIS