3EQ Silicone Surge Arresters For replacing your post insulators Answers for energy. The cost-saving solution for your substation. You require fewer post insulators for your installation, thereby saving you both money and space. Diagram of substation prior to 3EQ modification Transformer Voltage Transformer Surge Arrester Support GIS bushing Support Street Reduce the required space even more It‘s no problem to install our 3EQ surge arrester over the transformer! There is no danger to equipment, even in the direct vicinity. Diagram of substation with integrated 3EQ modification Transformer 3EQ as support Voltage Transformer Support Street saved installment space GIS bushing Why is this only possible with the 3EQ surge arrester? Do you require high bending moments for the support? The 3EQ surge arrester in tube design can support The tube design ensures that these arresters are virtually indestructible. The 3EQ surge arrester is 100 % break-proof after a pressure relief operation. No parts will be thrown out and the emerging arc will burn between the directional pressure relief device. No other design, such as wrapped arresters, direct molded arresters with polymeric housing or porcelain housed arresters, can provide this. 6,000 Nm (for voltages of 30 kV to 362 kV) 38,000 Nm (for voltages of 110 kV to 550 kV) 72,000 Nm (for voltages of 220 kV to 800 kV) 225,000 Nm (for voltages of 550 kV to 1200 kV) Silicone rubber shields FRP rods MO Nitrogen FRP tube Type 3EQ silicone surge arresters in tube design by Siemens: FRP tube for ultimate mechanical stability. The silicone rubber is molded directly onto the FRP tube. Surge Arrester 3EQ3 before test After 80 kA short-circuit-test Type 3EQ silicone surge arresters in tube design by Siemens 3EQ as support Network with Network with Um = 123 kV Um = 420 kV Voltage Transformer Materials such as Foundation, steel structure, post insulators, clamps, rental fees for cranes US$ 1,000 US$ 8,000 Working hours Installation for steel structure and post insulators US$ 1,500 US$ 12,000 Building site Surface area GIS bushing Transformer Street Clearance between equipment according to technical standards Minimum savings of approximately Depends on the costs of land US$ 2,500 US$ 20,000 Published by and copyright © 2008: Siemens AG Energy Sector Freyeslebenstrasse 1 91058 Erlangen, Germany Siemens AG Energy Sector Power Transmission Division High Voltage Products Nonnendammallee 104 13623 Berlin, Germany www.siemens.com/arrester-download Please contact us at: Phone: +49 30 386 33 222 Fax: +49 30 386 26 721 e-mail: [email protected] Power Transmission Division Order No. E50001-G630-A106-V1-4A00 Printed in Germany Dispo 30000 TH 263-080846 103425 PA 09080.5 Printed on elementary chlorine-free bleached paper. All rights reserved. Trademarks mentioned in this document are the property of Siemens AG, its affiliates, or their respective owners. Subject to change without prior notice. The information in this document contains general descriptions of the technical options available, which may not apply in all cases. The required technical options should therefore be specified in the contract. , , . www.siemens.com/energy , .