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.
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.
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
The project partner will be Wilson Transformer Company for the supply, installation and
commissioning of TMS equipment.
The main learning that will be shared with other DNOs is expected to include:
- An improved understanding of transformer thermal behaviour and asset utilisation.
- What is a safe enhanced transformer rating;
- The required minimum specification for TMS equipment and
- What policies need to be developed to implement Power Transformer Real Time Thermal Rating.
The main risks for the project will be not being able to gain network outages to install the TMS
equipment, the ability to carry out load transfers, and operating under N-1 conditions (close to
transformer nameplate rating). The risks during the trial will be mitigated at primary substation
by using load banks (which can be quickly disconnected) to supplement transformer loading.
Actual network load will be used to load the transformer to remain within seasonal capacity,
managing the operational risk, mitigated by robust planning.
Project funding estimated at £1.046m will be spent within regulatory year 2014/15. UK Power
Networks are aware that a separate application to the Network Innovation Allowance will be
required early in regulatory year 2015/16 for estimated £335,995 for the remainder of the funds.
The trial will be carried out at 2 Primary substations and will monitor 6 primary transformers.
- Four Transformers will be monitored at Lithos Road 66/11kV substation; and
- Two Transformers will be monitored at Weybridge Town Primary 33/11kV substation.
These two selected configurations would be representative of typical primary substation
installations within LPN (urban) / SPN (rural) and how the trials could be repeated at other
primary sites following successfull testing with minimum retrofit equipment.
Some elements of remote monitoring of the equipment will be managed from the control centre
at Fore Hamlet, Ipswich.
Work has been carried out to review and select appropriate trial sites. We currently expect to
proceed with the trial in the following areas, subject to detailed design and also subject to any
Area (1): London Power Networks - North West London - Lithos Road 66/11kV SS.
Area (2): South Eastern Power Networks - Surrey - Weybridge Town 33/11kV SS.
This project will comprise 2 Primary substations having 6 transformers in total. 4 transformers at
Lithos Road 66/11kV substation LPN area and 2 transformers at Weybridge Primary 33/11kV
substation SPN area.