What is the lowest operating voltage in PJM?

In the context of the PJM Interconnection, the lowest operating voltage typically refers to the voltage level at which transmission lines operate for delivering electricity. The correct answer of 115 kV serves as a significant voltage level in the PJM system, functioning effectively for regional power transmission and reliability.

In PJM, voltage classifications can include various levels, but the 115 kV voltage is widely recognized as one of the fundamental tiers for transmission. It is crucial in the network for connecting substations and facilitating the transfer of power. Operating at this voltage level provides sufficient capacity to maintain the balance and reliability of the electrical grid.

Higher voltage options like 230 kV, 345 kV, and others are indeed critical for long-distance transmission and high-capacity flows. However, they do not represent the lowest voltage used for operational purposes within the PJM framework. Thus, recognizing 115 kV as the lowest operating voltage is important for understanding PJM’s transmission infrastructure and maintaining grid stability.