Pergunta de entrevista da empresa ALSTOM

Questions during the panel interview are mix of Psychological Questions (from HR) and Technical Question (Engineering Manager). The technical interviews are theories of protection system (Distance, Differential, Protection Grading, Symmetrical Components). For the application part question I was asked to show how the commissioning of a Busbar protection system and explain the reason behind the 30 deg angle in Quadrilateral Characteristic of a distance protection.