Let’s Talk Design: 5 Reasons to Consider Close-Coupled Substations


A combination of different types of equipment provided in a coordinated package by a single vendor is called close-coupled substations. We want to share 5 advantages of using a close-coupled substation design as opposed to separated or isolated and cable connected approach.

  1. Cost of Installation: In other installations, running cable between the primary and secondary transformers can be a major cost depending on the size and distance. Along with running long cables, there is a higher exposure and risk of failure. Secondary cable cost on larger transformers is extremely costly.
  2. One Vendor: This gives you only one vendor to work with on interconnection, design, and installation coordination.
  3. Smaller Footprint: A smaller combined area is impacted by the construction of the substation.
  4. Cleaner Design: It is easier to leverage different technologies or solutions to reduce arc flash energy and provide better overall circuit protection.
  5. Operational Efficiency: It enables a simplified process for procedures such as LOTO or normal switching.

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