There is no UHV in the New England region. However, for decades it was common practice to take EHV circuits out of service to help manage high voltage conditions. This was especially true in the Boston area where you have an extensive 345 and 115KV cable system. As time moved forward, many of the transmission owners became hesitant to allow use of switching circuits to manage high voltage conditions. There was concern over wear and tear on switching equipment and loss of life on substation gear. Also, there is an inherent risk to overall system reliability as you take more and more facilities out, you decrease the system ability to recover from contingencies. In summary, while it may be a short term solution, the reality is the system should really consider adding either static or dynamic reactive devices.
What are you witnessing in you region with regard to the use of EHV and UHV Transmission Lines for Voltage Control?
- Nov 24, 2021 9:21 am GMT
In your region, are you experiencing increased removal of EHV and/or UHV Transmission Lines/cables for voltage control? Is it a result of increased renewables or transmission expansion?
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