Distribution Transformer with On-Load Tap Changer (OLTC)
Electricity North West Limited
Electricity North West Innovation Team
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Innovation Funding Incentive
High Voltage Technology
Increased penetration of Distributed Generation (DG) on the Low Voltage (LV) network, particularly Domestic Combined Heat and Power (DCHP) units, is expected to have a significant and adverse effect on voltage regulation. This is a concern especially when a large number of DCHP units are installed in existing properties within a small geographical area on an existing LV feeder. If the feeder was designed to normal planning standards it may suffer from voltage excursions at time of peak generation.
This project is aiming to develop an On-Load Tap Changer for the low voltage side of a standard distribution transformer. This is to aid with voltage level issues when faced with a high level of DG penetration.