SWITCHGEAR AND METHOD FOR CONTROLLING SWITCHGEAR
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United States of America
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Issued Date -
Apr 10, 2025
app pub date -
Feb 3, 2022
filing date -
Feb 3, 2022
priority date (Note) -
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status (Latency Note)
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Abstract
A switch unit is connected between a first node electrically connected to a power source and a second node electrically connected to a load circuit which receives power supplied from the power source. As a current suppression element is connected to the switch unit in parallel. A fault sensing unit senses abnormality in an electrically conducting circuit formed by electrically interconnecting the first node and the second node. When a closing operation of a switchgear is performed, a switching command unit conducts an abnormality diagnosis in a first state in which the switch unit is controlled so that an impedance between the first node and the second node has a first value, and when no abnormal state is sensed in the abnormality diagnosis, the switching command unit controls the switch unit to establish a second state in which the impedance is equal to or smaller than the first value.
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