Fillable Fcam Slide 1 (Ofgem)

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Fcam Slide 1 (Ofgem)

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Notes on completion
Before completing this form, please refer to the LCN Fund Governance Document.
Please use the default font (Verdana font size 9) in your submission, the text entry
areas are predetermined and should not be changed. Please ensure all content is
contained within the boundaries of the text areas. The full-completed submission
should not exceed 4 pages
in total.
First Tier Pro-forma
Project title
Lead DNO
Participant DNOs
Project summary for web
Problem(s)
Please provide a narrative which explains the Problem(s) which being addressed by the Project.
Registration Date
‹1›
Registration Confirmed
Fault Current Active Management (FCAM)
Electricity North West Ltd
Generators will provide an additional infeed to the network under fault conditions which leads to
much larger fault currents than previously seen. This results in more areas of the network running
close or or possibly beyond the designed fault current levels. Our RIIO-ED1 submission shows an
increased spend in network reinforcement to alleviate fault level issues. This project is to consider
alternatives to traditional methods.
ENWL propose to investigate new techniques including innovative use of existing
protection to control fault level. ENWL propose to carry out an independent Risk
Assessment into the different currently available methods of fault current management.
Through modelling and measurement ENWL aim to compile a picture of how the fault
currents vary both across the network and over time.
Historically DNO networks were designed with unidirectional power flow, predictable fault current
paths and predictable fault current levels. With the increasing levels of distributed generation
connected to the DNO network the system has become much more complicated particularly for
power flows and fault current levels.
Generators will provide an additional infeed to the network under fault conditions which leads to
much larger fault currents than previously seen. This results in more areas of the network running
close or or possibly beyond the designed fault current levels.
Traditional methods to overcome this problem is to change the switchgear for that of a higher
rating which increases either the cost of a connection for a generator or the DNOs reinforcement
spend.
Scope and Objectives
Please describe the scope and objectives of the Project should be clearly defined including the benefits which should directly
accrue to the Distribution System.
Success Criteria
Please give details of how the DNO will evaluate whether the Project has been successful.
Method(s)
This section should set out the Method or Methods that will be trialled in order to solve the Problem. The type of Method
should be identified where possible e.g. technical or commercial.
Problem(s) continued
‹2›
Alternative methods to control fault level are vital for DNOs to ensure that generators can still be
connected in a timely and cost effective manner whilst ensuring that the network does not
become overstressed under fault conditions leading to a possible failure of the asset.
ENWL propose to investigate the use of new techniques including innovative use of
existing protection as a method of controlling fault level. ENWL propose to carry out an
independent Risk Assessment into the different currently available methods of fault
current management. This Risk Assessment will investigate any safety issues and any
impact to customers as a consequence of using the different methods.
It is intended that the project will carry out detailed investigations of three different
areas of the network through the use of simulation techniques:
1. A generator connection and associated infeed.
2. Lower rated RMU on the distribution network.
3. Lower rated feeder CB at a primary Substation.
Through modelling and measurement ENWL aim to compile a picture of how the fault
currents vary both across the network and over time to validate existing models.
1. To install fault currents monitors across the entire ENWL network to help validate
models through measurement.
2. To produce a Risk Assessment for traditional techniques for fault current
management.
3. To develop new techniques to control fault current level using existing assets.
4. To simulate installations to prove the concepts.
1. Installation of fault current monitors.
2. Delivery of an independent Risk Assessment for traditional techniques for fault
current management.
3. Successful simulations of the new techniques.
4. Production of design specifications for the new techniques to control fault current
level.
Risks
The DNO should highlight any material, known risks that could impact the Project’s costs and/or programmes.
Scale of project
Please justify the scale of the Project. In particular, the DNO should explain why there would be less potential for new learning
if the Project were a smaller scale.
Geographical area
Details of where the Trial(s) will take place. If the Project is a collaboration, the DNO area(a) in which the Trial(s) take place
should be identified.
Potential for new learning
Detail what the parties hope to learn and how the learning will be disseminated.
TRL
This should be between 5-8 to be eligible for Tier 1 Funds.
Predicted start and end dates.
DNOs should provide an estimate of the expected project starting and completion dates.
Start Date: End Date:
Project partners and external funders
Please give details of actual or potential Project Partners and External Funding Support as appropriate
‹3›
6
September 2013
March 2015
ABB
ABS Consulting
Siemens
Academic Consultant
ENWL hope to gain an insight into the control of fault current level through the use of existing
assets. ENWL will learn the necessary design criteria for modifications to the network and typical
settings to apply.
ENWL will share the design criteria with other DNOs through presentations and specifications.
None known at present.
Monitoring will be deployed at strategic points across the network to cover the different types ie
urban, suburban , rural, domestic and commercial. Simulations will be carried out to cover the
entire network to produce the design criteria.
Electricity North West Limited Distribution Network
Please tick if the project conforms to the default IPR arrangements set out in
the LCN Fund Governance Document?
The DNO should indicate if the Project does not conform to the default IPR conditions. A justification for alternative arrangements and why the Project
should still be approved must be provided, in accordance with paragraph 2.18 of the Governance Document.
Please tick if you do not consent to the First tier pro-forma being published in
full.
If you do not consent please identify any information in the completed First Tier LCN
Project Registration that you do not wish to be published.
The DNO must demonstrate that it (or its Project Partners) will face commercial harm from its disclosure and that
information is considered eligible for exemption under the Freedom of Information Act 2000 or the Environmental
Information Regulations 2004.
All information submitted within the First Tier LCN Project Registration Pro-forma will be made available on the Ofgem
website, unless Ofgem has agreed otherwise as part of the Registration process set out above.
Estimated Project funding
An indication of the revenue allowed for within the DPCR5
settlement that is likely to be saved as a result of the project.
An indication of the total Allowable First Tier Project
Expenditure that the DNO expects to reclaim the for the
whole project.
Revenue allowed for in
the DPCR5 Settlement
(£k) per contributing DNO
Indicative total Allowable
First Tier Project
Expenditure (£k) per
contributing DNO
Please tick if the project involves making payments to related undertakings
The DNO must set out all payments that it proposes to make to itself or any Related Undertaking. Further, if a payment is to
be made to any Related Undertaking that is a Distribution System User, the DNO must demonstrate that it has offered the
same terms to similar Distribution System Users on the part of the network that is within the Project boundary and has used
reasonable endeavours to identify such Users.
‹4›
✔
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Fcam Slide 1 (Ofgem)

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Completed 20 July 2020

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