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

http://en.wikipedia.org/wiki/Umgungundlovu_District_Municipality

http://en.wikipedia.org/wiki/KwaZulu-Natal

http://en.wikipedia.org/wiki/South_Africa

http://en.wikipedia.org/wiki/Pietermaritzburg

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.

.

PROPOSED CITY CABLE GRID

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Pine Street Substation• 33kV to be phased out.


• 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.


• New Six panel GIS switchboard to be installed.

Woodburn Substation• 33kV to be phased out.


• 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.



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Hesketh Substation• 33kV to be phased out.


• The132kV line circuit which connects Eskom’s Mkondeni to Riverside Substation

to be turned into Hesketh substation.



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.


• New Seven panel GIS switchboard to be installed.



• 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.



Eastwood Substation• Site and servitude to be verified.


• 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.



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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eu donor funded smart grid … northdale substation • installation of three 132/11kv 30mvaynyn0...

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