Dobson introduced a concept of voltage phase angle across a cutest of lines for system monitoring based on PMU measurements and circuit theory.

Слово гуглится, но в словарях нет, а в энергетике я не очень...

Заранее всем спасибо! ))

см

https://www.researchgate.net/publication/224179086_A_cutset_area_concept_for_phasor_monitoring

....The concept of voltage phasor angle across a cutset of lines seems to be first introduced in [2]. The cutset voltage angle is extended to measure voltage angles across " cutset areas " in [3] . Cutset areas are special areas that separate the other areas of the power system from each other.

Electrical Circuits. Cut-set: It is that set of elements or branches of a graph that separates two main parts of a network. If any branch of the cut-set is not removed the network remains connected. The term cut-set is derived from the property by which the network can be divided into two parts. A cut-set is shown on a graph by a dashed line which passes through the branches defining the cutest. A graph should have at least one cutest though there can be more than one cut-set in any graph.

Судя по построению этой фразы, опечатка 100%)