Tapchanger Spring Measuring Device
National Grid Electricity System Operator
National Grid TO Innovation Team
Click here to send a question to the contact.
Innovation Funding Incentive
Historically Maintenance Delivery Electricitys (MDE) staff have used a spring balance and piece of nylon line to
determine the spring pressure on any single contact in a series of up to 25
contacts. The nylon line was attached to the contact and the spring balance to
the line on pulling the balance a reading was taken. This has led to
inconsistencies in the measured values obtained over the years. With this
method it was also very difficult to build up a historical data base on the condition
of springs with a view of determining any gradual degradation in the condition of
the spring’s strength.
The project will deliver the ability to measure accurately and consistently both
the opening and closing spring pressures on Transformer Tapchangers.
To allow ENI and asset policy build a clear picture of the condition of tapchanger