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Surge arrester Wuxi factoryPower Transmission and Distribution
Company Profile Key DataLocation: Employees: Legal Status: Reg. Capital: Established: Production Start: Products: Polymer Cage Design Surge Arresters MV up to 60kV HV up to 245 kVPage 2 Jul-07 Power Transmission and Distribution
Wuxi (120 km northwest of Shanghai) 80 Wholly Foreign Owned Enterprise (WOFE) 3 Million EUR June 2004 February 2005
The Wuxi Factory Wuxi downtown night view
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Power Transmission and Distribution
The Wuxi Factory Located in Wuxi New District 120 km NW of Shanghai
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Power Transmission and Distribution
The Wuxi Factory Entrance to the Surge Arrester World
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Power Transmission and Distribution
The Wuxi Factory Berlin bear welcomes the worldwide visitors
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The Wuxi Factory Visitor Display
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Power Transmission and Distribution
Company Profile Milestones2004, June 2005, January 2005, February 2005, March 2005, May 2005, November 2006, May 2006, June 2006, July 2006, October Business license issued Start of production 3EK7 Qualification ENEL, Italy Qualification GOST, Russia ISO 9001:2000 certificate issued Qualification CIDET, Colombia Start of production 3EL2 Qualification CEMIG, Brazil 3EK7 GB (China) type test passed 3EL2 GB (China) type test passed
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Power Transmission and Distribution
ProductsCage design surge arresters with directly moulded silicon rubber housing. 3EK7 Medium voltage up to 72.5 kV system voltage (Um) 3EL5 Intermediate Class up to Um = 72.5 kV 3EL1 Intermediate Class and High voltage up to Um = 170 kV 3EL2 High voltage up to Um = 500 kV** For system voltage higher than 368kV, only suspended mounting
3EK7 3EL1
3EL2
3EL5Page 9 Jul-07
Only for suspended mounting Power Transmission and Distribution
SSAL Products 3EK7 Technical Data (IEC)Max. system voltage Max. rated voltage (duty cycle) Max. continuous operating voltage (MCOV) Nominal discharge current Long duration current withstand capability Energy absorption capability (thermal) Max. pressure relief current Maximum permissible service load Um Ur Uc In I2ms Eth Ipr M 72.5 kV 60 kV 48 kV 10 kA 325 A 3.5 kJ/kVr 20 kA/0.2 s 500 Nm
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SSAL Products 3EL5 Technical Data (IEEE only)Max. system voltage Max. duty cycle Max. MCOV Energy absorption capability Max. pressure relief current Maximum design cantilever load static Um UDC 72.5 kV 60 kV
UMCOV 48 kV Eth Ipr M 2 kJ/kVDC 20 kA/0.2 s 3100 in*lb
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Power Transmission and Distribution
SSAL Products 3EL1 Technical Data (IEC)Max. system voltage Max. rated voltage (duty cycle) Max. continuous operating voltage (MCOV) Nominal discharge current Long duration current withstand capability Energy absorption capability (thermal) Max. pressure relief current Maximum permissible service load Um Ur Uc In I2ms Eth Ipr M 170 kV 156 kV 125 kV 10 kA 500 A 5 kJ/kVr 65 kA/0.2 s 1200 Nm
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Power Transmission and Distribution
SSAL Products 3EL2 Technical Data (IEC)
Max. rated voltage Nominal discharge current Line discharge class Long duration current withstand capability Energy absorption capability (thermal) Energy absorption capability (impulse) Short-circuit current capability Maximum permissible service load (MPSL)
Ur In
420 kV 10 kA
2 and 3 I2ms Eth 850 A 8 kJ/kVr
Eimp 4 kJ/kVr Is 65 kA/0.2 s
Mdyn 4 kNm
* For Ur higher than 288kV, only suspended mounting
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Power Transmission and Distribution
Production 3EK7 Silicon Rubber Injection Moulding Process
3EK7 active parts
After injection
Machine Manufacturer: Fuo Yuan, Taiwan Clamping Force: 340 tons Mould Cavities: 4 for housing size B to D 2 for housing size E to KPage 14 Jul-07
Mould cleaning
Power Transmission and Distribution
The Wuxi Factory Pressing Machine and Assembly for Type of 3EK7
Pressing MachinePage 15 Jul-07
Assembly for 3EK7Power Transmission and Distribution
The Wuxi Factory Swaging and Primer Machine
Swaging MachinePage 16 Jul-07
Primer MachinePower Transmission and Distribution
The Wuxi Factory 3EK7 previous to siliconize
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The Wuxi Factory Routine Test Equipment
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The Wuxi Factory 3EK7 ready for packing
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The Wuxi Factory Assembling and packing
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Product Packing and Shipment 3EK7Products are individually packed in corrugated paper boxes, box includes Surge Arrester Accessories (if ordered) Installation and operation manual Spacers on surge arrester end fittings provide protection against shed bending Completeness of boxes and shipment is checked with delivery notice
3EK7 Packing BoxPage 21 Jul-07 Power Transmission and Distribution
The Wuxi Factory Finished Product Storage
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Power Transmission and Distribution
Production 3EL2 Silicon Rubber Injection Moulding Process
Before injection
Machine Manufacturer: Fuo Yuan, Taiwan Clamping Force: 680 tons 3EL2 Cavities: 2 for housing size C & F 1 for housing size M & JPage 23 Jul-07
After injection
Power Transmission and Distribution
The Wuxi Factory Silicone Injection Moulding Machine
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Power Transmission and Distribution
Product Packing and Shipment 3EL2Products are individually packed in wooden boxes, box includes Surge Arrester Accessories (if ordered) Installation and operation manual Box design ensures safe transportation by sea, air and truck. Completeness of boxes and shipment is checked with delivery notice.
3EL2 Packing BoxPage 25 Jul-07 Power Transmission and Distribution
Quality Management System Quality Pyramid
ISO 9001 Siemens Quality Management Manual Quality and Environmental Manual PTD H Quality Management Manual SSAL Documented Procedures Inspection and Test Plans Working Instructions
ISO 9001
ISO 9001
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Quality Assurance Inspections and TestsIncoming Part and Material Inspection for every surge arrester part, material or accessory In process inspection Routine visual check of active part Sample check of active part length Routine visual check of silicone rubber housing Routine test of each and every surge arrester according to IEC 60099-4 or IEEE C62.11 including Partial discharge test Reference voltage test Residual voltage test (on individual MOVs by manufacturer) Acceptance tests upon request, witnessed by customer or customer representatives Repetition of routine test Residual voltage testPage 27 Jul-07 Power Transmission and Distribution
Quality Assurance Routine Test Equipment
Medium voltage routine test box
High voltage routine test box
Jul-07 Page 28 Routine Test Box
Power Transmission and Distribution
The Wuxi Factory Test Field Controller room & Impulse Current Generator
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Power Transmission and Distribution
For further information: www.siemens.com/arrester Thank you for your time!
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Power Transmission and Distribution