To provide current blocking means for a case in which a part of a ring-shaped power supply hard wire is broken at a part of a line.SOLUTION: A ring-shaped power supply system comprises: a plurality of relays RL which are provided on a ring-shaped power supply hard wire ML apart from one another; a plurality of detection parts 5 which are provided between the relays RL, respectively, and detect, if the ring-shaped power supply hard wire ML is broken, electric change due to the breaking; and an arithmetic processing part which specifies, based upon the electric change detected by the plurality of detection parts 5, the breaking place of the ring-shaped power supply hard wire ML, and breaks relays RL located on both sides of the breaking place.SELECTED DRAWING: Figure 1
【課題】リング状電源ハードワイヤにおいて線路の一部が断線した場合における電流遮断手段を提供する。【解決手段】リング状電源供給システムは、リング状電源ハードワイヤML上に互いに離間して設けられた複数のリレーRLと、各リレーRL間にそれぞれ設けられ、リング状電源ハードワイヤMLに断線が生じた際に、断線による電気的な変化を検出するための複数の検出部5と、複数の検出部5で検出された電気的な変化に基づいて、リング状電源ハードワイヤMLの断線箇所を特定し、断線箇所の両側に位置するリレーRLを遮断させる演算処理部とを備える。【選択図】図1
RING-SHAPED POWER SUPPLY SYSTEM
リング状電源供給システム
15.02.2021
Patent
Elektronische Ressource
Japanisch