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3EQ Silicone Surge ArrestersFor replacing your post insulators
The cost-saving solution for your substationYou require fewer post insulators for your installation, thereby saving you both money and space.
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 prior to 3EQ modification
Transformer
Support Support
GIS bushing
Surge ArresterVoltage
Transformer
Street
Diagram of substation with integrated 3EQ modification
saved installment space
Transformer
Support
GIS bushing
VoltageTransformer
Street
3EQ as support
Clearance between equipment according to technical standards
Type 3EQ silicone surge arresters in tube design by Siemens
Network with Um = 123 kW
Network with Um = 420 kV
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 insu-lators
US$ 1,500 US$ 12,000
Building site Surface area Depends on the costs of land
Minimum savings of approximately
US$ 2,500 US$ 20,000
Transformer
3EQ as support
Voltage Transformer
Street
GIS bushing
Surge Arrester 3EQ3 before test After 80 kA short-circuit-test
Why is this only possible with the 3EQ surge arrester? The tube design ensures that these arresters are virtually in destructible. 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.
Do you require high bending moments for the support? The 3EQ surge arrester in tube design can support! 6,000 Nm/MDCL 37,000 inch-lbf (for voltages of 30 kV to 362 kV) 38,000 Nm/MDCL 235,000 inch-lbf (for voltages of 110 kV to 800 kV) 72,000 Nm/MDCL 445,000 inch-lbf (for voltages of 220 kV to 800 kV) 225,000 Nm/MDCL 1,390,000 inch-lbf (for voltages of 550 kV to 1200 kV)
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.
Silicone rubber shields
FRP rods
MO
FRP tube
Published by and copyright © 2014: Siemens AG Energy Sector Freyeslebenstrasse 1 91058 Erlangen, Germany
Siemens AG Energy Sector Power Transmission Division High Voltage Products Nonnendammallee 104 13629 Berlin, Germany
Please contact us at: Phone: +49 30 386 33 222 Fax: +49 30 386 26 721 E-mail: [email protected]
US contact Siemens Energy, Inc. Power Transmission Division 444 Highway 49 South Richland, MS 39218
Please contact us at: Toll-free: +1 (877) 742-3309 Phone: +1 (601) 932-9800 E-mail: [email protected]
siemens.com/energy/arrester
Power Transmission Division Order No. E50001-G630-A106-V3-4A00 Printed in Germany Dispo 30002, SIMC-0000-44281 fb 6393 PD WS 08141.0
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.
siemens.com/energy/arrester