| 摘要 |
FIELD: electrical engineering. ^ SUBSTANCE: proposed device comprises holder (1) and at least one protective plug-in element (2), both provided with mechanical detectors of changes in state of every plug-in protective element. Holder (1) incorporates also appliances to change the state of switch (4) comprising connectors for it to be connected to long-range communication line for state-change signal transmission. Holder (1) comprises spring-loaded positioning element (5) with indicator end (5c), when protection is connected to electric power circuit, stays in contact with movable part (2a) in respective plug-in element (2). Note here that every aforesaid positioning element (5) has its other end furnished with flange (5b). Free end of signaling plate (3) is arranged between flange (5b) and respective plug-in protective element (2). Aforesaid plate has its other end oscillates about the axis passing along the width of holder (1) that accommodates also switch (4). Switch control element (4b) is located on the trajectory of signaling plate (3) after the state of plug-in element (2) has changed. ^ EFFECT: higher reliability. ^ 7 cl, 3 dwg |
