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|1. (WO2018034260) OPEN PHASE DETECTING SYSTEM, OPEN PHASE DETECTING DEVICE AND OPEN PHASE DETECTING METHOD|
|Applicants:||KABUSHIKI KAISHA TOSHIBA
TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
|Title:||OPEN PHASE DETECTING SYSTEM, OPEN PHASE DETECTING DEVICE AND OPEN PHASE DETECTING METHOD|
An open phase detecting system of an embodiment is provided with: a three-phase stationary induction electric device (1); a current detector (5); an extracting unit (62); and a determining unit (67). The three-phase stationary induction electric device (1) has a primary circuit in which an excitation current flows through three phase wires. The current detector detects, for each wire, the excitation current flowing through each wire of the primary circuit. The extracting unit extracts a high frequency from the excitation current of the wire, which is detected by the current detector. On the basis of whether the high frequency is extracted by the extracting unit, the determining unit determines whether the wire of a detection source of the excitation current is in an open state or a connected state.