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DETUNED REACTORS DR3

Product catalog summary

Introduction
Detuned reactors, specifically the DR3 series by BLOCK, are designed for reactive power compensation in electrical systems. These reactors help mitigate harmonic oscillations caused by power and frequency converters, thereby protecting capacitors and improving voltage quality.

Specifications
The DR3 reactors are available in various models with different dimensions and technical specifications. Key parameters include rated voltage of 3 x 400 Vac, rated frequency of 50 Hz, and detuning factors of 7% or 14%. The reactors are designed to handle power ratings from 12.5 kVAr to 50 kVAr, with resonance frequencies ranging from 134 Hz to 189 Hz.

Design Features
The DR3 reactors boast low inductance tolerance, corrosion protection through vacuum impregnation, low noise levels, and extended linearity. They are thermally designed for continuous operation at both mains frequency and harmonics.

Technical Data
Each model's technical data includes specific power ratings, current capacities, resonance frequencies, and weights. For example, the DR3 12.5/7 model has a power rating of 12.5 kVAr, a current capacity of 19.5 A, and a weight of 8.7 kg.

Standards and Protection
The reactors comply with standards such as EN 61558 Part 1 and Part 20, UL 506, and CSA 22.2. They have an insulation class of F (40 °C) / H (60 °C) and a protection index of IP 00. Optional temperature protection is available for all versions.

Additional Information
Further customization in terms of voltages, power, and detuning factors is available upon request. The document also highlights BLOCK's global presence with production sites in Germany and the USA.

Catalog excerpts

FILTERKREISDROSSELN DR3 DETUNED REACTORS DR3 Filterkreisdrosseln für Blindleistungskompensationsanlagen Detuned reactors for reactive power compensation COMPACT DESIGN Änderungen vorbehalten Subject to change

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ABMESSUNGEN DIMENSIONS Abmessungen tca.) BefestigungsmaBe Dimensions (approx.) Mounting dimensions Breite A Tiefe B Hohe C d1 el Bef.-Loch PE-Bolzen Zeichnung Width A Depth B Height C Mounting hole PE bolt Drawing Anderungen vorbehalten Subject to change

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In zunehmendem Mafie werden am Netz heute Stromrichter und Umrichter betrie-ben. Dabei entstehen Oberschwingungen am Netz, die zusatzliche Verluste speziell in den Kondensatoren von Blindleistungs-kompensationsanlagen hervorrufen. Eine Verdrosselung mit den DR3 Filterkreis-drosseln von BLOCK schliefit die Gefahr eines Uberstroms durch Resonanz weitge-hend aus und sorgt so fur einen optimalen Schutz der Kompensationskondensatoren sowie fur eine Verbesserung der Span-nungsqualitat. In today‘s industry, power and frequency converters are being abundantly used on the mains. This causes harmonic oscillations,...

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DAS MAXIMUM ERREICHEN MAXIMUM PERFORMANCE Änderungen vorbehalten Subject to change

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UMGEBUNGS- NORMEN AMBIENT PROTECTION Detuned reactor in TEMPERATURE MAX. INDEX accordance with EN 61558 Bemessungsspannung Bemessungsfrequenz Fur Blindleistung Verdrosselungsfaktor Strom Resonanzfrequenz Gewicht Rated Voltage Rated frequency For reactive power Detuning factor Power Resonance frequency Weight Alle Varianten sind auch mit Temperaturschutz erhaltlich. Optional available temperature protection for all versions. Weitere Spannungen, Leistungen und Verdrosselungsfaktoren auf Anfrage. Further voltages, power and detuning factors on request....

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Headquarters and production site Production sites International agencies BLOCK Transformatoren-Elektronik GmbH Max-Planck-Straße 36–46 • 27283 Verden • Germany Phone +49 4231 678-0 • Fax +49 4231 678-177 [email protected] • block.eu

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