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HomeOperational DataValid CT/VT Ratios 

Valid CT/VT Ratios

 

This section allows you to view the valid Current Transformer (CT) and Voltage Transformer (VT) ratios.

An automated download of these ratios can be performed by accessing  https://www.elexonportal.co.uk/ctvt/xml

Please ensure that your systems only allow the use of the valid CT and VT Ratios set out in the lists below by 00:00 on the effective date shown.

ActionDate of ChangeEffective Date of Change
CT Ratio 315/5 added04/05/202124/06/2021
CT Ratio 275/1 added26/04/202124/06/2021
CT Ratio 700/5 added26/04/202124/06/2021
CT Ratio 10/5 added08/02/202124/06/2021
CT Ratio 100/1 added08/02/202124/06/2021
CT Ratio 100/5 added08/02/202124/06/2021
CT Ratio 1000/1 added08/02/202124/06/2021
CT Ratio 1000/5 added08/02/202124/06/2021
CT Ratio 1100/5 added08/02/202124/06/2021
CT Ratio 120/1 added08/02/202124/06/2021
CT Ratio 120/5 added08/02/202124/06/2021
CT Ratio 1200/1 added08/02/202124/06/2021
CT Ratio 1200/5 added08/02/202124/06/2021
CT Ratio 125/1 added08/02/202124/06/2021
CT Ratio 125/5 added08/02/202124/06/2021
CT Ratio 1250/1 added08/02/202124/06/2021
CT Ratio 1250/5 added08/02/202124/06/2021
CT Ratio 1400/5 added08/02/202124/06/2021
CT Ratio 15/5 added08/02/202124/06/2021
CT Ratio 150/1 added08/02/202124/06/2021
CT Ratio 150/5 added08/02/202124/06/2021
CT Ratio 1500/1 added08/02/202124/06/2021
CT Ratio 1500/5 added08/02/202124/06/2021
CT Ratio 160/5 added08/02/202124/06/2021
CT Ratio 1600/1 added08/02/202124/06/2021
CT Ratio 1600/5 added08/02/202124/06/2021
CT Ratio 180/5 added08/02/202124/06/2021
CT Ratio 20/5 added08/02/202124/06/2021
CT Ratio 200/1 added08/02/202124/06/2021
CT Ratio 200/5 added08/02/202124/06/2021
CT Ratio 2000/1 added08/02/202124/06/2021
CT Ratio 2000/5 added08/02/202124/06/2021
CT Ratio 2005/5 added08/02/202124/06/2021
CT Ratio 2400/1 added08/02/202124/06/2021
CT Ratio 2400/5 added08/02/202124/06/2021
CT Ratio 25/1 added08/02/202124/06/2021
CT Ratio 25/5 added08/02/202124/06/2021
CT Ratio 250/1 added08/02/202124/06/2021
CT Ratio 250/5 added08/02/202124/06/2021
CT Ratio 2500/1 added08/02/202124/06/2021
CT Ratio 2500/5 added08/02/202124/06/2021
CT Ratio 2600/5 added08/02/202124/06/2021
CT Ratio 30/5 added08/02/202124/06/2021
CT Ratio 300/1 added08/02/202124/06/2021
CT Ratio 300/5 added08/02/202124/06/2021
CT Ratio 3000/1 added08/02/202124/06/2021
CT Ratio 3000/5 added08/02/202124/06/2021
CT Ratio 3200/1 added08/02/202124/06/2021
CT Ratio 3200/5 added08/02/202124/06/2021
CT Ratio 350/1 added08/02/202124/06/2021
CT Ratio 350/5 added08/02/202124/06/2021
CT Ratio 3500/1 added08/02/202124/06/2021
CT Ratio 3500/5 added08/02/202124/06/2021
CT Ratio 3600/5 added08/02/202124/06/2021
CT Ratio 40/2 added08/02/202124/06/2021
CT Ratio 40/5 added08/02/202124/06/2021
CT Ratio 400/1 added08/02/202124/06/2021
CT Ratio 400/5 added08/02/202124/06/2021
CT Ratio 4000/1 added08/02/202124/06/2021
CT Ratio 4000/5 added08/02/202124/06/2021
CT Ratio 450/5 added08/02/202124/06/2021
CT Ratio 50/1 added08/02/202124/06/2021
CT Ratio 50/5 added08/02/202124/06/2021
CT Ratio 500/1 added08/02/202124/06/2021
CT Ratio 500/5 added08/02/202124/06/2021
CT Ratio 5000/1 added08/02/202124/06/2021
CT Ratio 5000/5 added08/02/202124/06/2021
CT Ratio 60/5 added08/02/202124/06/2021
CT Ratio 600/1 added08/02/202124/06/2021
CT Ratio 600/5 added08/02/202124/06/2021
CT Ratio 630/5 added08/02/202124/06/2021
CT Ratio 6500/5 added08/02/202124/06/2021
CT Ratio 700/1 added08/02/202124/06/2021
CT Ratio 75/5 added08/02/202124/06/2021
CT Ratio 750/1 added08/02/202124/06/2021
CT Ratio 750/5 added08/02/202124/06/2021
CT Ratio 80/5 added08/02/202124/06/2021
CT Ratio 800/1 added08/02/202124/06/2021
CT Ratio 800/5 added08/02/202124/06/2021
CT Ratio 900/5 added08/02/202124/06/2021
CT Ratio UNKNWN added08/02/202124/06/2021
VT Ratio 1000/110 added08/02/202124/06/2021
VT Ratio 1100/110 added08/02/202124/06/2021
VT Ratio 11000/100 added08/02/202124/06/2021
VT Ratio 11000/110 added08/02/202124/06/2021
VT Ratio 11100/110 added08/02/202124/06/2021
VT Ratio 132000/110 added08/02/202124/06/2021
VT Ratio 20000/110 added08/02/202124/06/2021
VT Ratio 2200/110 added08/02/202124/06/2021
VT Ratio 22000/110 added08/02/202124/06/2021
VT Ratio 24400/110 added08/02/202124/06/2021
VT Ratio 25000/110 added08/02/202124/06/2021
VT Ratio 26400/110 added08/02/202124/06/2021
VT Ratio 3300/110 added08/02/202124/06/2021
VT Ratio 33000/110 added08/02/202124/06/2021
VT Ratio 33000/63.5 added08/02/202124/06/2021
VT Ratio 5500/110 added08/02/202124/06/2021
VT Ratio 6100/110 added08/02/202124/06/2021
VT Ratio 6600/100 added08/02/202124/06/2021
VT Ratio 6600/110 added08/02/202124/06/2021
VT Ratio 66000/100 added08/02/202124/06/2021
VT Ratio 66000/110 added08/02/202124/06/2021
VT Ratio UNKNOWN added08/02/202124/06/2021
Last updated: 04/05/2021 13:36:44