Substation Design Reliability
National Grid Electricity System Operator
National Grid TO Innovation Team
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Innovation Funding Incentive
Gas Distribution Networks
The design reliability project will compare the reliability and
availability for different substation arrangements based on historical
switchgear and protection performance. The impact of various fault
scenarios will be examined, to identify the appropriateness of
substations for extensions or development. This will form a strategy
for new connections, extensions or asset replacement decisions.
This will also be used to examine alternative substation
configurations (double breaker or one and a half breaker systems)
and new technologies such as integrated or hybrid switchgear (such
as disconnecting circuit breakers or compact units) can be used to
make the network more effective.
The purpose of this work is to establish a generic
assessment model to compare performance and reliability
between different substation configurations under various
fault and operational contingencies.