According to Blondel's Theorem, how many stators are required to properly meter a service with multiple wires?

Blondel's Theorem provides guidance on how many stator sensors are needed to accurately measure electrical consumption in a multi-wire service. According to this theorem, the number of stators required is directly related to the number of wires used in a system. Specifically, for systems with single-phase or three-phase configurations, one less stator than the total number of wires will suffice for accurate metering.

This is because one of the wires typically serves as a reference or return path and does not require a dedicated stator. For example, in a three-phase service with a neutral wire, you would only need three stators for the three phases, as the neutral does not require an additional measurement.

Understanding this principle is crucial for linemen because it ensures that they install metering equipment that efficiently captures the necessary data without redundancy. Hence, the correct answer aligns with this application of Blondel's Theorem, which emphasizes the need for efficiency and accuracy in electrical metering systems.