Micafil RIP bushings High-voltage Resin Impregnated Paper bushings Power and productivity for a better world TM ABB
Leading in Bushings Technology: ABB Micafil ABB Micafil has been closely associated with innovation and quality for decades. Since the 1980s, the company has been the worldwide leader in Resin Impregnated Paper bushings (RIP), using an oil-free and thus dry and clean technology. RIP bushings are characterized by their outstanding technical performance: the small and lightweight design facilitates easy transportation, storage and installation while the oil-free construction requires absolutely no maintenance, is leakage-free and thus exceptionally safe and environmentally friendly. These characteristics combined with genuine Swiss quality make RIP bushings the first choice for even the most demanding applications. Our background Based in Zurich, Switzerland, ABB Micafil originally produced merely traditional bushings such as OIP (Oil Impregnated Paper) and RBP (Resin Bonded Paper). As the world s first company, ABB Micafil developed its initial RIP bushings (resin impregnated paper) already in the 1960s. At the end of the 1980s, we were again the very first to start the production of 420 kv RIP bushings and in 1996 of 550 kv RIP bushings. For the last 30 years, ABB Micafil has been operating its bushings production exclusively with the superior RIP technology. The continuously improved design of Micafil RIP high-voltage bushings sets new standards regarding quality, reliability and state-of-the-art safety solutions. Being a member of the ABB Group since 2004, ABB Micafil has access to comprehensive resources, particularly in the fields of high-voltage engineering, material research and applied physics. Your advantages We are familiar with your goals: increasingly ambitious targets of improved availability and prolonged lifetime, continuously advanced safety standards, more efficient capacity utilization of your assets, while cost pressure remains intense. To cope with these demanding objectives, many utilities throughout the world now rely on our RIP technology for good reasons: our bushings are the most dependable and safest, leading to an excellent costperformance ratio. We therefore offer you a most valuable contribution towards reaching improved overall performance figures. Our solution The RIP bushings condenser bodies consist of solid cores. These are made of special crepe paper being wound following a certain sequence, and having numerous intermediate layers of coated aluminum foil embedded for the necessary electrical field grading. Subsequently, these paper condenser cores are vacuum dried and afterwards impregnated with a special epoxy resin. These computer controlled processes of vacuum drying and impregnation as well as the final curing are very sensitive. They are run under vacuum in tightly controlled ambient conditions and in hermetically sealed environments. We are proud of our leading position in this technology, providing our customers with profound expertise based on over 100 000 RIP bushings successfully in operation. RIP bushings technology, made and tested in Zurich, Switzerland 2 Micafil RIP bushings
Micafil RIP bushings Micafil offers an extensive range of high-quality products. They can be adapted to different transformer and plant designs and thus meet the requirements of the most varied applications. In addition, our company is specialized in tailor-made solutions including custom designs and small series production. Our range of products encompasses bushings for oil-outdoor, oil-sf6, oil-oil transformer systems as well as outdoor-sf6 bushings for GIS. If you don t see what you need right here, please get in touch with us we can address your individual needs in a highly professional, flexible and efficient manner. Our bushings are developed and approved for mineral oil applications. Transformer bushings, Oil-Outdoor AirRIP / RTKF KSI Silicone composite insulator available with straight or helical sheds from 24 to 550 kv up to 5 000 A AirRIP / RTKF Porcelain insulator from 24 to 550 kv up to 5 000 A SeismicRIP / RTKF KSI Silicone composite insulator from 69 to 550 kv up to 5 000 A Standard: IEEE 693 2005 High seismic performance level HIRIP High current RTXF Porcelain insulator up to 36 kv up to 40 000 A Micafil RIP bushings 3
Transformer bushings, Oil-SF6 GARIP / RTKG from 36 to 550 kv up to 4 000 A Transformer bushings, Oil-Oil ORIP / RTKK from 72.5 to 550 kv up to 4 000 A Outdoor-SF6 bushings for GIS RAKF Porcelain or silicone composite insulator from 245 to 550 kv up to 4 000 A Wall bushings RMI indoor-indoor RMF outdoor-indoor RMFF outdoor-outdoor Porcelain or silicone composite insulator from 24 to 300 kv up to 5 000 A Railway bushings RMF / RTAK Porcelain insulator from 15 to 52 kv up to 2 000 A Micafil RIP RIP bushings 3/4
Superb engineering expertise Micafil RIP bushing in detail Cut-away of general design 1. Depending on the current rating, the active part is wound on either a center tube or a solid conductor 2. Active part is made out of Resin Impregnated Paper body with inserted aluminium foils 7 3. Current transformer extensions: if current transformers are required, the ground sleeve is extended 4. MICAGEL dry filler 4 5. Mounting flange with integrated measuring tap 6. Porcelain or silicon composite insulator for outdoor applications 7. Head with terminal (Al or Cu) and bushing s sealing system 8. Transformer-side electrical shield ensures a smooth electrical field grading 6 Micafil RIP bushing Advantages Excellent electrical and thermal values Partial discharge-free up to double service voltage High thermal endurance (class E, 120 C) Low dielectric losses (tan δ <0.35 %) Superb design Compact, space-saving No need for porcelain or composite insulator, except for outdoor use Low weight The materials are chosen to provide the lowest possible enviromental impact over the entire product life cycle 5 Highest operational safety Installation, transportation and operation allowed in any position No explosion risk for outdoor SF6 bushings (pressure-free bushings) Fire resistant due to oil-free design The new SeismicRIP outdoor transformer bushings satisfy the highest seismic requirements Service Maintenance-free bushings Standards Micafil RIP bushings are specified and tested according to the latest IEC 60137 and IEEE C57.19.00/01 standards. The new line of SeismicRIP outdoor transformer bushings satisfies the highest earthquake requirements as per IEEE Standard 693-2005. 3 8 2 1 Micafil RIP bushings 5
Contact us ABB Switzerland Ltd Micafil Badenerstrasse 780 8048 Zurich, Switzerland Phone +41 (0)58 586 03 33 Fax +41 (0)58 586 03 01 info@micafil.ch www.abb.com/electricalcomponents Note We reserve the right to make technical changes or modify the contents of this document without prior notice. With regard to purchase orders, the agreed particulars shall prevail. ABB Ltd. does not accept any responsibility whatsoever for potential errors or possible lack of information in this document. We reserve all rights in this document and in the subject matter and illustrations contained therein. Any reproduction, disclosure to third parties or utilization of its contents in whole or in parts is forbidden without prior written consent of ABB Ltd. Copyright 2011 ABB All rights reserved 1ZCD066578AA EN. March 2011. Subject to change. Power and productivity for a better world TM ABB