Electricity North West Limited
Electricity North West Innovation Team
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Innovation Funding Incentive
High Voltage Technology
A balance must be achieved between reducing the HV network voltage
sufficiently to create headroom for DG, and not reducing it so much that low
voltage problems are created. From initial studies it is believed that Load
Drop Compensation (LDC) may have the potential to achieve this balance
by increasing the voltage set point as demand increases, and lowering the
set point as demand reduces. In some instances, a permanent reduction in
the Automatic Voltage Control (AVC) set point may be sufficient, particularly
for geographically compact cable networks where excessive voltage drop
may not be a problem. It is proposed to study a number of primary
substations following principles defined in Electricity North West’s Code of
Practice 370 Voltage Control for 132kV, 33kV and 11/6.6kV Systems.
This IFI project is to review and adjust the voltage control at a number of
primary substations to provide voltage headroom for generation.