Mukesh Sharma, Projects / Engin eering Manager, July 2013. 2013.
Power Product Utility Seminar High Voltage Gas Insulated Switchgear. © ABB
Topics
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What is Gas Insulated Insulat ed Switchgear (GIS)?
Benefits of Gas G as Insulated Switchgear.
Additional advantage with with ABB GIS.
ABB High Voltage Voltage Gas Insulated Switchgear Switchgear portfolio.
Integrated Gas Insulated Switchgear solution.
Local capability and references.
What is Gas Insulated Switchgear (GIS) ? Usual substation components …
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GIS
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GIS is a type of switchgear having usual components of a substation (e.g. busbars, disconnectors, circuit-breakers, earthing switches, instrument transformers, surge arrester) arranged in metal enclo sure and insu lated with Gas (SF6) at high pressure.
•
Equipment are segregated into sufficient independent gas zones to allow the required degree of operational flexibility.
Benefits of Gas Insulated Switchgear
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Low Life Cycle Costs
High safety level
Low space requirement
Low environmental impact
Life Cycle Costs Investment cost and O&M cost. Operation & Maintenance (AIS = 1.5 GIS) Installation & Commissioning (AIS = 2 GIS) Engineering & Project Management (AIS = 1.5 GIS) Auxiliary Cables (AIS > GIS) Building, Civil work (GIS = AIS) Space Saving (GIS = 10 to 20 % AIS) Earth levelling, Site preparation, Fence and Road (AIS = 2 to 3 GIS) Earthing, Lighting (AIS = 2 to 3 GIS) Equipment Price (GIS= 1.3 to 1.7 AIS)
~35 %
GIS
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AIS
Safety
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Earthed enclosure (touch proof)
Viewports for each switch (disconnector and earthing switch)
Provisions to padlock disconnector and earthing switch.
Bursting disks.
Additional advantages of ABB GIS
0.1% per annum SF6 leakage type tested.
Compact design means lower infrastructure costs and lower environmental impact.
Highest ratings covers future customer increase in network demands.
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ABB GIS product portfolio Overview and technical data kA 80
ELK-14 4000A
63
ELK-04 4000A
ELK-3 compact 5000A
50
40
ELK-4 ELK-5 5000A 5000A
ELK-14 compact 3150A ENK ELK-04 2500A compact 3150A 72.5
July 15, 2013 © ABB
ELK-3 6300A
145
170
245
252
300
362
420
550
765
1100
kV
ELK 04 72.5 – 170kV Double Busbar Bay 5
4
6
Control Cubicle
1 2 3 4 5 6 7 © ABB
Busbar side Disconnecting and Earthing switch Circuit Breaker Current Transformer Line side Disconnecting and Earthing switch Voltage Transformer Fast Acting Earthing Switch Cable Exit
1
Barrier Insulator
3 2
7
Switching components ELK 04, 72.5 – 170 kV Circuit Breaker :
Mechanical endurance class M2 (10,000 CO)
Capacitive switching class C2
Used for 170 kV and up to 63 kA
Combine Disconnector Earthing Switch :
Mechanical endurance class M2 (10,000 CO)
Common moving contact for disconnector and earthing switch, the safest way for interlocking between earthing and disconnecting function (automatic mechanical interlock)
Fast Acting Earthing Switch :
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With max two full load fault making capacity. Access to main current path is possible without opening gas compartment.
ELK-14 compact, 245 kV, 3150 A and 50 kA Double busbar cable bay • Dimensions reduced by 40% (building cost reduction, reduced steel structures) • Weight reduce by 25% (reduced transport & handling cost, reduce foundation load) ELK-14, standard
• SF6-gas reduced by 20% (ready for environmental regulations) • Crane size reduce to 1.5 tonne
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ELK-14, compact
ELK-14 compact, 245 kV Layout =D01 cable exit
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ELK-3 Compact, 420 kV, 5000 A and 63 kA Double Busbar Bay • Dimensions reduced by 45% (building cost reduction, reduced steel structures & land acquisition costs) • Weight reduce by 25% (reduced transport & handling cost, reduce foundation load) • SF6-gas reduced by 40% (ready for environmental regulations) • Crane size reduce to 3 tonne
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ELK-3 compact, 420 kV & ELK 14 compact, 245kV. Excellent accessibility
Front access to drives : Emergency hand crank operation and padlocking at front panel.
Single type drive for disconnector and earthing switches for simple spare part handling. Circuit-breaker emergency operation and supervision unit at front panel.
Service platforms
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Easy access to gas density monitoring and indications.
Service platform with openings for accessibility to viewports and filling point
3”/75mm contact view ports for visual checks
Order execution and installation, compact GIS. Shipped as a complete factory tested bay ELK-3, 420 kV
PO
Base Design
Design freeze
1 month
1.5 months
Manufacturing
Installation
6 months
4.5 months
ELK-3 compact, 420 kV
PO
Base Design
Design
1 month
1.5 months
freeze
Manufacturing
Installation
3 months
2 months
Based on a typical substation of 7 bays / PO = project order * Shipping time is not shown in above time line.
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Reduction of installation and commissioning time by 60%
Significant reduction of cabling works on-site
Reduced overall lead time by 25 - 30%
Switching components ELK 3, compact Circuit Breaker :
Mechanical endurance class M2 (10,000 CO)
Capacitive switching class C2
Double-motion technology introduced in
1990th
Animati on Double-motion principle
Disconnector / Earthing Switch :
Mechanical endurance class M2 (10,000 CO)
Contains a three-pole operated disconnector to isolate the feeder from the Busbar.
Fast Actin g Earthing Swi tch : • •
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Exceeds the requirement : Mechanical endurance class M1 (3000 CO) Access to main current path is possible using insulated earthing contacts (10 kV), without opening gas compartment.
Circuit Breaker Operating Mechanism Experience with Hydro-Mechanical Spring Drive More than 100,000 operating mechanisms s uccessfully in operation
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Circuit Breaker Operating Mechanism Benefits of Hydro-Mechanical Spring Drive (HMB)
Energy stor age:
Disk spring: Single spring package stores the energy for multiple close/open operations
Energy transmission:
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Hydraulic: Smooth damping of the breaker, integrated in the hydraulic system
In the unlikely event of rupture of one disc within the stack of springs only approx. 8% of the stored energy will be lost.
Even with three broken springs (Material failure), safe open Operation is possible.
Circuit Breaker Operating Mechanism MTBF (Mechanisms Manufactured 2000-2010)
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SF6 – Gas Monitoring System MSM
Data visualization and alarm signalization
Remotely via IEC 61850-8-1
Remotely via embedded web server
Via local HMI
Leakage rate esti mation analysis
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early leak detection.
Maintenance planni ng by calculation of leakage rate.
Reduces inspection work
Reduces maintenance costs
Integrated GIS Applications Customer success story City of Anchorage, Alaska
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The customer had growing demand for power and required substation to be modest, as the project was in close proximity to a shopping center. ABB responded by providing an ELK-04 / 145 kV fully integrated GIS substation that was installed and energized in a few weeks.
The substation consists of a 4-breaker ring integrated into two 40-foot containers.
The local control cubicles are also fully integrated inside the containers.
ABB is locally available!
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GIS Service – World wide engagement for your satisfaction
International and local 24/7/365 emergency hotline
Locally available factory Certified GIS Engineers and Technicians
Local service centers fully equipped with tools required for installation and maintenance.
Local center for marketing and sales support.
Training for customer personnel available.
ABB Gas Insulated Switchgear AU GIS Projects since 2006
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Customer
Substation
Rating
GIS Type
Design
Delivered
Installed
Integral Energy
Bella Vista ZS
145kV / 2000A / 40kA
7 Bay Ring Bus
2006
Integral Energy
Springhill TS
145kV / 2500A / 40kA
22 Bay DBB
2008
Integral Energy
Lawson ZS
72kV / 2000A / 40kA
7 Bay SBB
2010
Integral Energy
Mungerie Park ZS
145kV / 2000A / 40kA
8 Bay SBB
2009
Integral Energy
Camellia TS
145kV / 2500A / 40kA
13 Bay DBB
2012
Integral Energy
Cheriton ZS
145kV / 2000A / 40kA
8 Bay SBB
2011
Ergon Energy
Berserker ZS
72.5kV / 2000A / 40kA
5 Bay SBB
2009
CitiPower
Southbank
72.5kV / 2500A / 40kA
7 Bay Ring Bus
2010
AGL
Bogong
300kV / 630A / 40kA
1 Bay Y Circuit
2009
Rio Tinto
Cape Lambert Substation
220kV / 2500A / 16kA
5 Bays DBB
2012
Transgrid
Beaconsfield South Substation
145kV / 3150A / 50kA
22 Bay DBB
2012
ABB Gas Insulated Switchgear AU GIS Projects since 2006 Customer
Substation
Rating
GIS Type
Transgrid
Beaconsfield North Substation
145kV / 3150A / 50kA
22 Bay DBB
2012
Transgrid
Beaconsfield South Substation
145kV / 3150A / 50kA
4 off Circuits
2012
Beaconsfield South Substation
362kV / 1600A / 50kA
Actew AGL
Eastlake
145kV / 2500 A/ 40 kA
10 Bay SBB
Delivery Aug 2103
Commence 2013
Rio Tinto
Cape Lambert Substation Extn.
220kV / 2500A / 16kA
5 Bays DBB
Delivery Oct 2103
Commence 2013
Transgrid
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Design
Delivered
Installed
SF6 GIL 2 off Circuits
2012
SF6/Air GIL
GIS Technology & Applications Optimal & efficient use of resources
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GIS is a mature technology and offers immense flexibility and benefits to the users. All products in the market are not same.
Service continuity needs careful evaluation.
New generation of switchgear are compact , environmentally friendly and provide lower infrastructure costs across the whole value chain.
Ideal for pre-fabricated , pre-tested substation in factory
Is fully realiasable with the compact generation of switchgear & further enhances the benefits of GIS
Mukesh S Sharma Happy to help you
Mukesh S Sharma
Projects / Engineering Manager ABB Australia Pty Limited High Voltage Switchgear. Bapaume Road 2170, Moorebank, New South Wales,
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Phone: +61 (0)2 9753 7983 Mobile: +61 439 021 906 email:
[email protected].
