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: arrester@siemens.de
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
,
.