3-Phase Transformer DROP 5–500 kVA
Three-phase transformerDROP 5 - 500Three-phase transformers up to 500kVAInput/output voltage, currents, connections, mounting according to customer specifications.(cost-optimized design) General:Michael Riedel - Transformatorenbau GmbH combines with the new ROP series (Riedel Optimized Price) the high quality requirements of Riedel products with an energy-efficient and compact design. The transformers of the DROP series comply with national and international regulations for worldwide use.The special advantages of the DROP series: Variable voltage selection option by the customer Compact design through innovative core technology Reduction of noise emissions through special core stacking Designed for the smallest possible installation volume Insulation class F (ta = 40°C / F)Design:Open design, stationary, for equipment installation and mounting in dry rooms. Connection to creepage-current-proof transformer terminals with screw connection. The transformer terminals are protected against contact by the back of the hand and fingers according to UVV (BGV A3). From 50A with terminal blocks on angle brackets, from 415A on flat copper connections.IP00, suitable for installation up to protection class IP 23 with natural air self-cooling, insulation class F, max. ambient temperature 40° C. Insulation class F
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3-Phase Isolation Transformer DRUE 50–36,000 VA
Three-phase transformerDRUE 50 - 36000 (Insulation Class E)Three-phase transformers up to 36,000 VAInput/output voltage, currents, connections, and mounting according to customer specifications. GeneralThe transformers of the DRUE series comply with national and international regulations for worldwide use. They can be supplied as desired as Power transformers in accordance with VDE 0570 Part 2-1, EN 61558-2-1 Isolating transformers according to VDE 0570 Part 2-4, EN 61558-2-4 Safety transformers in accordance with VDE 0570 Part 2-6, EN 61558-2-6, (sum of all no-load secondary voltages max. 50 V)The specific version must be specified when ordering.VersionOpen, upright design, stationary, for equipment installation and mounting in dry rooms, separate windings. Connection to creepage-current-proof transformer terminals with screw terminals. For currents above 50 A, creepage-current-proof terminal blocks are mounted on terminal brackets (Note: Dimensions b and c increase in this case). The terminals are protected against contact by the back of the hand and fingers in accordance with UVV (BGV A3).Other configurations are available upon request (voltages, currents, connections, mounting options, etc.).IP 00, insulation class E, ambient temperature 40°C (ta40°C/E).All types are also available as three-phase economy transformers (for calculations, see the section “Transformers with Economy Windings” in the General Section). Insulation class E
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3-Phase Transformer RDST 40 – 630 kVA
Three-phase transformerRDST 40 – 630Three-phase transformers up to 630 kVAInput/output voltage, currents, connections, and mounting according to customer specifications.(Loss-optimized version with grain-oriented Armco-Lec) General:The rectangular core assemblies of our higher-power three-phase core transformers are constructed from alternately layered strip steel. The windings are impregnated together with the core under vacuum and then cured in a drying oven for several hours.Special features of the RDST series: Dry-type core transformers in accordance with EN 61558 / VDE 0570 Designed for maximum efficiency The robust design ensures an almost unlimited service life for the transformers, even under overload conditions Connections up to 415 A via terminal blocks; above that, bolts, busbars, or cable lugs (not dimensioned) Insulation class F Custom design; therefore, dimensions and weights are subject to change Loss-optimized seriesAll models are also available as three-phase economy transformers (for calculations, see the section “Transformers with Economy Windings” in the General Section).*Depending on the design and winding type, all dimensions—especially dimension b—may increase by up to 100 mm for special currents!Dimensions d and e available upon request; insulation class F
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3-phase transformer DRUL 110–50000 VA with UL/CSA
Three-phase transformerDRUL 110 - 50000 (Insulation Class F) with UL/CSA approvalThree-phase transformers up to 50,000 VA, UL 5085 / CSA 22.2 approved.Input/output, depending on the version, for a voltage ratio up to a maximum of 660 V.UL File No.: E164203 / Category: XPTQ2/8(not “Construction only” or “Insulating System”)*1 Suffix -A (DRUL UL-CSA-A) = autotransformer GeneralThe transformers of the DRUL UL-CSA series are specifically approved for the North American market and comply with national and international regulations for worldwide use.The special advantages of the DRUL UL-CSA(-A) series: Variable voltage options available upon customer request Primary rated voltage range 200 V...600 V, including any number of taps (max. 660 V) Secondary 10 V...600 V (110–6000 VA), 20 V...600 V (7500–10000 VA), 40 V...600 V (12,000–25,000 VA), 80 V...600 V (30,000–50,000 VA), including any number of taps (max. 660 V) Maximum of 4 separate windings, the sum of which falls within the voltage range window High reliability and long service life Low total losses, high efficiency Upon customer request, non-insulated cable connections are available as an option for secondary voltages up to AC 50 V (open-circuit voltage) Optional: PE screw terminal, PE shield, thermal switch Energy-saving transformers *1 adapted to the installationConfiguration:Open design, stationary, for equipment installation and mounting in dry rooms. Connection to creepage-current-proof transformer terminals with screw terminals. The transformer terminals are protected against contact by the back of the hand and fingers in accordance with UVV (BGV A3). From 50 A with terminal blocks on the top bracket.IP00, suitable for installation up to protection class IP 23 with natural air cooling, insulation class F, max. ambient temperature 40° CThe specific version must be specified when ordering. Insulation class F
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3-phase transformer DRET 1–500 kVA
Three-phase transformerDRET 1 - 500Three-phase transformers up to 500 kVAInput/output voltage, currents, connections, and mounting according to customer specifications.(loss-optimized design) General:With the new RET series, Michael Riedel Transformatorenbau GmbH combines the high quality standards of Riedel products with an energy-efficient design. The transformers in the DRET series comply with national and international regulations for worldwide use.The special advantages of the DRET series: Variable voltage options available upon customer request Loss-optimized design thanks to innovative RET core technology Reduction of noise emissions through special core nesting Designed for maximum efficiency Insulation class B (ta = 40°C / B), also for high power ratingsConfiguration:Open design, stationary, for equipment installation and mounting in dry rooms. Connection to creepage-current-proof transformer terminals with screw terminals. The transformer terminals are protected against contact by the back of the hand and fingers in accordance with UVV (BGV A3). From 50 A with terminal blocks on top brackets; from 415 A with copper flat terminals.IP00, suitable for installation up to protection class IP 23 with natural air cooling, insulation class B, max. ambient temperature 40° C. Insulation class B
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3-Phase Transformer DRUF 6000–100,000 VA
Three-phase transformerDRUF 6000–100,000 (Insulation Class F)Three-phase transformers up to 100,000 VAInput/output voltage, currents, connections, and mounting according to customer specifications.(cost-optimized version) GeneralThe transformers of the DRUF series comply with national and international regulations for worldwide use. They can be supplied as desired as Power transformers in accordance with VDE 0570 Part 2-1, EN 61558-2-1 Isolating transformers according to VDE 0570 Part 2-4, EN 61558-2-4 Safety transformers in accordance with VDE 0570 Part 2-6, EN 61558-2-6 (Total of all no-load secondary voltages: max. 50 V)The specific version must be specified when ordering.VersionOpen, upright design, stationary, for equipment installation and mounting in dry rooms, separate windings. Connection to creepage-current-proof transformer terminals with screw terminals. For currents above 50 A, creepage-current-proof terminal blocks are mounted on terminal brackets (Note: Dimensions b and c increase in this case). The terminals are protected against contact by the back of the hand and fingers in accordance with UVV (BGV A3).Other configurations are available upon request (voltages, currents, connections, mounting options, etc.).IP 00, insulation class F, ambient temperature 40°C (ta40°C/F).All models are also available as three-phase economy transformers (for calculations, see the section “Transformers with Economy Windings” in the General Section). Insulation class F
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