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Distribution Transformer Phasing

Secondary (distribution) transformer phasing data, inferred from Transformer Reference Type and/or GIS line data, inclusive of Local Authority.

We have developed the Distribution Transformer Phasing dataset to assist customers, including but not limited to Local Authorities and consultants acting on their behalf, in making more informed applications (e.g. when applying for LEVI funding). The dataset provides indicative information only and cannot be relied upon to assess the suitability of specific premises for connection or funding applications.

Transformer phasing data is inferred from information held on record and has not been verified through on-site checks. Where phasing cannot reasonably be inferred from asset records, it is derived from GIS data. Distribution Transformer Phasing is a substation-level dataset. Where multiple transformers are present at a single substation, and those transformers have different phasing; the phasing associated with the transformer with the largest number of phases has been used. The value published may not, therefore, be representative of all transformers within a substation.

NGED does not guarantee the completeness of this dataset. Some substations have been omitted deliberately, for data privacy reasons or where internal records are deemed inaccurate or incomplete.

Whilst we use reasonable endeavours to ensure that this dataset and related information is accurate, we do not warrant, and do not accept any responsibility or liability for, the accuracy or completeness of the content or for any loss which may arise from reliance on the data therein.

Data Files

Name Format Last Changed Download
Distribution Transformer Phasing.csv Unauthorized csv
5 days ago
Data Sharing Assessment pdf
5 days ago

Additional Info

Field Value
Source National Grid Electricity Distribution
Uploaded Date October 17, 2025, 09:17 (UTC)
Creator National Grid Electricity Distribution
Created Date March 19, 2025, 00:00 (UTC)
Rights NGED Open Data Licence
Coverage West Midlands, East Midlands, South Wales, South West
Contributor Digitalisation & Data
Identifier tx_phasing
Publisher National Grid Electricity Distribution
Relation DS
Language EN
Data Classification Shared
Update Frequency 12 Months
Expiration Date October 31, 2026, 00:00 (UTC)

Integrate this dataset using cURL

# Get a list of dataset's resources

curl -L -s https://connecteddata.nationalgrid.co.uk/dataset/distribution-transformer-phasing/datapackage.json | grep path

# Get resources

curl -L redacted
curl -L https://connecteddata.nationalgrid.co.uk/dataset/8b7f56f1-b1c8-4db4-adb7-647032b02bda/resource/a0039f76-5725-47f9-b6d8-c78f673bc44e/download/data-sharing-assessment.pdf