Oil Distribution Transformers
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M aximum quality fo r m axi m um l oads

SBG at a Glance Products • Oil transformers • Arc suppression coils • Earthing transformers • Neutral earthing transformers Quality management The SGB-SMIT Group is certified in accordance with: • DIN ISO 9001 • DIN ISO 14001 We possess welding certification required by the German Federal Railways. Our own quality check points guarantee a maximum quality level. All operational procedures are controlled via an ERP system. Core, winding, assembly and housing: these four components and production steps are what characterizes our oil distribution transformers. They are our “T.O.P. 4”. Markets...

Power where power is needed Our core competence: the ideal basis for powerful advancements. We manufacture oil transformers for distribution networks in accordance with DIN EN 50464-1. They form the basis for products that can be integrated perfectly in specific applications, e. g.: • Three-phase oil transformers for distribution networks of energy supply companies • Three-phase oil transformers in low-loss design for decentralized energy generation • Three-phase multi-winding oil transformers for special requirements • Three-phase oil transformers for wind power plants • Special...

Quality Component Assembly I Quality is no coincidence: the core The heart of our oil distribution transformers: thanks to state-of-the art production procedures and high precision, it beats with particular reliability and power. This is what distinguishes cores manufactured in-house at SBG. • cold-rolled grain-oriented metal sheets • step-lap design • max. filling factor These measures reduce no-load losses and no-load currents as well as noise emission. T.O.P. 1 At SBG, the actual parameters of the texture tapes used are measured and recorded prior to core slitting.

Maximum resistance to • short-circuit load • overvoltage peaks Production of high-tensile coils • semi-automated winding machines • current displacement in axial direction adjusts automatically • reduced thrust forces • spark-free and splatter-free cold-pressure welding of outgoing lines • high-tensile coils thanks to concentric coil shape and thermal bonding of the prepreg to the conductor material Fully-automated winding machine • fully or semi-automated winding machines • lacquer- or paper-insulated winding wire • constant winding tension • layer insulation made of high-quality cable...

Quality Component Assembly III Reliable and solid: assembly & drying Assembly of the active part All components are assembled and mounted in a short-circuit proof manner using pressed components. The result: additional reserves and increased reliability. Vacuum drying Drying and oil filling under vacuum as a basis for: • maximum impregnation of insulating materials • ensured compliance with PD specifications as a prerequisite for an extremely long service life T.O.P. 3 At SBG, all active parts are subjected to an electrical pre-test prior to installation in the housing.

Housing and cover • Corrugated tank manufactured in-house • State-of-the-art corrugation plant processes using quality sheet steel • After being welded via the welding robot, the tank is tested for an air tight seal Manufacture of the corrugated wall Corrosion protection • Environmentally friendly, hydro-based coating system for various corrosion protection requirements • Coating with paint via immersion process (standard RAL 7033) • In addition, the tank is hot-galvanized for enhanced corrosion protection T.O.P. 4 At SBG, all housings manufactured in-house are subjected to a fourfold...

Tests “Transformers should be seen and not heard” Reducing transformers’ noise emissions is becoming increasingly important. This is why, in addition to the standard design (DIN EN50464), SGB transformers are also available with reduced loss and noise levels. Alongside the selection of the appropriate induction and core material, the method of dovetailing legs and yokes in step-lap design has a positive impact on the transformers‘ noise emissions and losses. Noise measurements are performed as special tests at regular intervals. Routine tests in accordance with DIN VDE 0532 • Test with...

Occupational Health & Safety and certification Only transformers energize A feeling of reassurance: SBG not only complies with the standards regarding manufacturing quality and occupational safety, but also faces today's challenges when it comes to environmental issues. Awards and certificates reflect the high demands we place on ourselves in terms of acting responsibly. Confirmed many times: SBG's quality and performance Certified transporting agencies and trucks with special superstructures and load-securing equipment a Quality Management System f The Sales, Design, Production, Testing ai...

Accessories Enhanced protection, facilities for monitoring and extended supervision: our transformers can be equipped with accessories and special solutions for even better integration in your application conditions. Protection and monitoring equipment for: • temperature • oil level • pressure • gas formation Shock hazard protection on HV & LV • HV · inner cone-type bushings · outer cone-type bushings • LV · terminals with covers · cable hoods Special solutions for especially challenging applications • flat-bar terminal system • electromagnetic compatibility (EMC) • for converter operation...

Request form Would you like us to submit an offer? To be able to define your transformer requirements, please provide us with the following information. Please send this form by fax to fax no. +49 (0) 37600 / 3414 or send an email to sgb@sgb-neumark.de You can also use the direct line to Sales and Development: phone number +49 (0) 37600 / 8300. Request/order information on three-phase oil transformers in accordance with DIN EN50474 Quantity: Design: Hermetic / expansion tank* Indoor / Outdoor* Nominal power: High voltage: - can be changed over to: High-voltage tappings: Low voltage:...