EU DONOR FUNDED SMART GRID … Northdale Substation • Installation of three 132/11kV 30MVAYNyn0...
Transcript of EU DONOR FUNDED SMART GRID … Northdale Substation • Installation of three 132/11kV 30MVAYNyn0...
EU DONOR FUNDED SMART GRID
PROGRAMME
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Historical Background
• Msunduzi Local Municipality is a local municipality in Umgungundlovu
District Municipality, KwaZulu-Natal, South Africa. It encompasses the city of
Pietermaritzburg, which is the capital of the KwaZulu-Natal province. Since
1989, the electricity demand in Msunduzi Municipality’s network has grown
from 205 MVA in 2005 to 380 MVA in 2014, with significant increases in
technical and non-technical losses.
• Much of the technical infrastructure has aged and is now approaching end of
life, while still carrying the full amount of load. Routine maintenance on the
network has reduced over the years and during the period of administration.
This is evident in volume of failed equipment and network assets recorded.
• In order to mitigate the anticipated growth in load over the next few years,
decrease the technical and non-technical losses, mechanisms must be put
in place that will enhance service delivery and improve revenue collection.
• The introduction of advanced Asset Management Project through the
participation of Msunduzi Electricity in the EU Donor Funded Smart Grid
Programme has the potential to aid the utility in addressing its existing
unsustainable position.2
WAY FORWARD
• It is therefore the intention of Msunduzi to show the
strategic link between previous projects/ programmes as
well as the current project being undertaken and future
projects being planned.
• The Sanedi project of Advanced Asset Management
Systems will therefore assist in deployment of Asset
Management Systems, Customer Relationship interface
systems and Network sensors to ensure that the
infrastructure installed is operated and maintained
optimally to realize the full value of the asset and also to
ensure that it operated at optimism level for the full
duration of its life.
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WAY FORWARD
• Advanced Asset Management Project will determine
Msunduzi Municipality’s Managements Methodology with
Smart Grid thinking and assigning and implementing an
Advanced Asset Management solution.
• At present Msunduzi Municipality does not have
Maintenance Management Systems which integrates asset
condition assessment (determining predictive maintenance
planning), repairs conducted on electrical assets and the
normal operation of assets.
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MAJOR NETWORK FAILURES
• Mkondeni Primary - 132 /11kV faulted
• Woodburn Primary - 33/11kV transformer faulted
• Retief Primary - 33/11kV transformer faulted
• Northdale Primary - 11kV Switchgear faulted
• Masons Primary - 11kV Switchgear faulted
• Crossways - Switchgear faulted
As a results of these major faults a plan to
rehabilitate the network was carried out.
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PRIMARY 132kV NETWORK
REHABILITATION PLAN FOR
MSUNDUZI MUNICIPALITY
Proposed Primary 132kV Network Upgrade
Current primary network
• 33kV: Riverside, Retief, Archbell, Pine Street, Woodburn, Hesketh
and Crossways substations
• 88kV: Masons substation
• 132kV : Northdale, Prince Alfred, Harp, Hulett, Petronet and
Mkondeni substations
• Diversified Maximum Demand 305MVA
• The ageing 33kV infrastructure has come to the end of its useful life
• Standard two 40 MVA 132/11kV transformer bay Substations
• 132 kV ring feed network with short line differential protection to
provide discrimination under fault conditions.
• Garlington Substation and a new 32 metre wide double circuit
transmission line servitude need to be negotiated
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Project Cost Breakdown
Northdale 132/11 kV 15,424,220
Riverside 132/11 kV 37,305,376
Retief 132/11 kV 33,685,344
Archbell 132/11 kV 43,240,000
Pine Street 132/11 kV 42,330,000
Prince Alfred 132/11 kV 37,340,000
Woodburn 132/11 kV 34,626,714
Hesketh 132/11 kV 32,430,000
Bishopstowe 132kV 18,925,090
Masons 132/11 kV 46,790,000
Crossways 132/11 kV 13,826,714
Eastwood 132/11kV 23,689,220
City Grid 132kV 41,320,000
Crossways Cable 132kV 65,760,000
Mkondeni 132/11 kV 1,580,844
Petronet 132/11 kV 1,580,844
Harp 132/11kV 1,580,844
132kV Overhead line 132kV 5,819,220
New SCADA Control Centre 132 & 11kV 50,000,000
New Smart Metering System 40,000,000
11kV Secondary Distribution 11kV 156,281,701
Contingency Sum 74,353,613
Professionals Fees 74,353,613
TOTAL 892,243,357
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Annual expenditure forecast
July 2014 to June 2015 R 70,740,414
July 2015 to June 2016 R 570,058,978
July 2016 to June 2017 R 251,443,966
PROPOSED 132kV NETWORK
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Northdale Substation• Installation of three 132/11kV 30MVA YNyn0 transformers.
• Replace 11kV switchboard.
• Install two incoming line Circuit Breakers
• Install line differential protection on two 132kV line circuits.
• Replace perimeter fencing.
• Install new 11kV cable feeder protection and supervisory control.
Riverside SubstationReplace incoming Mersey feeder bays
• The existing line traps will be removed as the communication channel to Mersey
will be replaced with fibre optic communications.
• Two new line feeder bays need to be established at Riverside for Msunduzi and
Retief to be cut into Riverside.
• Existing terminal tower to be relocated to a more suitable position.
• New 11kV switchroom to be built.
• Replace existing 11kV switchgear.
• Install new 11kV Feeder Protection
• Install two New 40MVA 132/11kV transformers
• 33kV to be phased out after Woodburn, Hesketh and Riverside 33/11kV
transformation has been changed over to 132/11kV transformation.
• The existing capacitor banks will be checked to determine there effectiveness in
the new network arrangement.
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Retief Substation• 33kV to be phased out after Pine Street, Archbell and Crossways 33/11kV
transformation has been changed over to 132/11kV transformation.
• Two new 132/11kV 40MVA transformers to be installed on two of the existing
132/33kV transformer plinths.
• One of the remaining two transformer bays will be converted to a cable feeder bay
for the city grid 132kV 240MVA cable circuit to Archbell Substation.
• new 11kV switchroom to be built adjacent to the existing building to accommodate
a new 22 panel switchboard. The existing control room will be reused.
• Installation of new 11kV switchgear
• Installation of new feeder Protection and control schemes
Archbell Substation• 33kV to be phased out.
• Two new 132/11kV 40MVA transformers to be installed
• New 132kV GIS switchroom to be constructed.
• New five panel GIS switchboard to be installed.
• Installation of new 11kV switchgear.
• Installation of new feeder Protection and control schemes.
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PROPOSED CITY CABLE GRID
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Pine Street Substation• 33kV to be phased out.
• Two new 132/11kV 40MVA transformers to be installed
• New 132kV GIS switchroom to be constructed.
• New Seven panel GIS switchboard to be installed.
Prince Alfred Street Substation• New 132kV GIS switchroom to be constructed.
• Two new 132/11kV 40MVA transformers to be installed
• New Six panel GIS switchboard to be installed.
Woodburn Substation• 33kV to be phased out.
• Two new 132/11kV 40MVA transformers to be installed
• The132kV line circuit which connects Eskom’s Msunduzi to Retief Substation to be
turned into a new Woodburn substation.
• new 11kV switchroom and control room to be built to accommodate a new 22
panel switchboard.
• Installation of new 11kV switchgear
• Installation of new feeder Protection and control schemes
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Hesketh Substation• 33kV to be phased out.
• Two new 132/11kV 40MVA transformers to be installed
• The132kV line circuit which connects Eskom’s Mkondeni to Riverside Substation
to be turned into Hesketh substation.
• Installation of new 11kV switchgear
• Installation of new feeder Protection and control schemes
Bishopstowe 132kV Switching Substation• Construction of eight 132kV line bays , two Eskom’s Mersey feeders, two
Northdale feeders, two Riverside feeders and two spare.
• Construction of new Control room and perimeter fencing.
• Installation of new feeder Protection and control schemes.
• Turn in of existing lines.
Masons Mill Substation• New 132kV GIS switchroom to be constructed.
• Two new 132/11kV 40MVA transformers to be installed
• New Seven panel GIS switchboard to be installed.
• Installation of new 11kV switchgear
• Installation of new feeder Protection and control schemes
• Decommissioning of the 88kV substation
PROPOSED CROSSWAYS 132kV CIRCUITS
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Crossways Substation• 33kV to be phased out.
• Two existing 132/11kV 30MVA transformers from Prince Alfred SS to be installed.
• Two new 132kV cable feeder bays to be installed.
• Installation of new 11kV switchgear
• Installation of new feeder Protection and control schemes
Eastwood Substation• Site and servitude to be verified.
• Two new 132/11kV 40MVA transformers to be installed
• The132kV line circuit which connects Bishopstowe to Riverside Substation to be
turned into Eastwood substation.
• New switchroom, control room and perimeter fencing to be built.
• Installation of new 11kV switchgear
• Installation of new feeder Protection and control schemes
EASTWOOD SUBSTATION CUT-INN
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Crossways Cable Circuits• 33kV to be phased out.
• Two100MVA 132kV cable circuits will be installed from Pine Street to Crossways
Substation.
• Circuits will connect the Crossways Substation to Pine Street and will in future be
extended to Garlington Substation and interconnect to Bishopstowe Switching
Substation.
132kV Overhead line• Eastwood Cut-Ins- A new section of double circuit twin Wolf line must be
constructed from a suitable tee-off point from the existing Bishopstowe to Riverside
double circuit twin wolf line.
• Msunduzi-Riverside Cut-Ins- The existing section of double circuit single Wolf line
of the old circuit that use to run from Riverside to Retief substations must be
upgraded from Riverside Substation to the existing angle structure near the
Msunduzi-Retief Circuit, to 200MVA capacity.
City Cable Grid• 33kV to be phased out.
• A 240MVA 132kV cable network to be installed through the City centre. This cable
will connect the existing Retief Substation to Prince Alfred and will strengthen the
132kV network. The connection will consist of three major sections, Retief to
Archbell, Archbell to Pine Street and Pine Street to Prince Alfred Street.
PROPOSED 132kV LINE CUT-INNS
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Smart Metering and Billing Data System
• This will be the subject of a detailed report to cover the new tariff requirements and
structure
Secondary 11kV distribution network
• The details of this work will be covered in the Secondary Network Development
Plan
New SCADA control Centre • New control software upgrade and configuration will be required for each of the
Primary substations.
• to be done in conjunction with the commissioning of the new protection schemes
and substation gateways.
• The optical fibre communication cores will be laid with the primary cable circuits
and line protection upgrades.
• The secondary fibre circuits will be laid with the 11kV reticulation network to the
distribution switching substations as part of the Secondary Network Development
Plan.
• Provision will be made in the system to expand the SCADA to incorporate the
expansion to the Secondary Distribution Network.
PROPOSED GARLINGTON SUBSTATION CUT-INN
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Network Diagram
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Identification and introduction of pilot site
• Msunduzi does not have an established asset
management methodology or practice aligned
to Smart Grids thinking, hence we intend using
this project to address that gap by establishing
required management practice and process.
The back office is seen as the heart of the utility
business as it is the central processing unit
where management and control of the various
value chains are integrated for better control
and optimization of their individual benefits.
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Asset Management Policy & Asset Register
• Msunduzi Municipality has an Asset Management
Policy for the entire Municipality and is managed
by the Procurement Department.
• The Asset Register is divided into two parts,
namely the asset register itemized/technical
information and the asset register financial.
• Electricity Technical Department do not have
access to the asset register to enable them to view
the electrical assets to conduct maintenance
planning using the information available in the
register.
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Asset Management & Practice
• We know that effective Asset Management holds
the key to any sustainable Electricity Business
which will ensure a reliable Electricity Service,
customer satisfaction and create shareholder
value.
• Asset management also enables an organization
to examine the need for and performance of
assets and asset systems at different levels.
Additionally ….
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Contin…
• …….it enables the application of analytical
approaches towards managing an asset over
the different stages within its life cycle (which
can start with the conception of the need for the
asset, through disposal & includes the
managing of any potential post disposal
liabilities).
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• Msunduzi does not have an established asset
management methodology or practice aligned
to Smart Grids thinking, hence we intend using
this project to address the gap by establishing
required management practice and process.
The back office is seen as the heart of the utility
business as it is the central processing unit
where management and control of the value
chains are integrated for better control and
optimization of there individual benefits.
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• At Msunduzi, we intend to close these 2 gaps,
establishing an asset management methodology
and establishing a back-office to drive that
methodology going forward.
• In this we will be ensuring that, the investment
already made of more than R250 million is not
gone to waste but the assets deployed are
maintained in a cost effective manner that will
yield not only reliable supply but also enhance the
customer experience.
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• The collaboration with SANEDI and the
municipality through the implementation of this
project will leave such a legacy that doing
business going forward will be a paradigm shift
that will determine the success and
sustainability of the organization.
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Conclusion
• The vision for the Electricity Department at
Msunduzi is simply to capitalize on the existing
grid infrastructure and to move to a more
sustanable business model, through enhanced
grid/network visibility and improved asset
management through technology deployment
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• Below is the methodology to the Project at
Msunduzi, the approach is intergrated into the
methodology.
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STEP 1
STEP 2
STEP 5
STEP 4
STEP 3
LOGICAL
STEPS
DELIVERABLES AREAS OF FOCUS
STEP1 Define goals and create vision
document
• Business values
• Strategy
• Policy
• Objective
STEP 2 Define key grid assets to be
monitored and determine
intervention
• Asset information
• Risk Management and decision making
• Status assessment
• Requirements to remotely monitor assets.
STEP 2a Define Back-office and IT
system
• Design the asset information system
• Designed to support the AN process.
• Based on AM information model
• Compatible with existing systems
(GIS,ERM)
• Integrated with maintenance inspection
and planning
• Standardized but flexible
• Ease of use for asset engineers and
maintenance crews
• Training facilities (IT and technical)
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LOGICAL
STEPS
DELIVERABLES AREAS OF FOCUS
STEP 3 Purchase system and
commission
• Determine cost of systems and
components and purchase them
STEP 4 Organise process • Structure
• Authorities
• Responsibilities
• In/Outsourcing
• Staff numbers and competence
STEP 5 Implement process • AM project based plans
• Documentation\into management
• Tools and facilities
• Staff development
THANK
YOU
THE END
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