Someone who builds, maintains, and monitors the equipment at a local power distribution center is known as what?

The role described in the question is best represented by a substation technician. This position specifically involves the responsibility of building, maintaining, and monitoring the equipment at power distribution centers, particularly substations where voltage is transformed and distributed to various areas. Substation technicians ensure that electrical equipment operates efficiently and safely, and they often troubleshoot issues related to the power distribution infrastructure.

While a power technician and lineworker might be involved in various aspects of electrical systems, their roles do not exclusively encompass the specific duties tied to a substation, such as monitoring and maintaining substation equipment. An electrical engineer focuses more on the design and development of electrical systems rather than the hands-on maintenance of existing equipment at distribution centers.