Control device grounding of electrical equipment medium voltage protection comprising at least two electrical protection devices

摘要

Electrical protective equipment comprising a control device its grounding, she said interposed equipment being between two parts of an electric circuit so as to ensure at least the function of current flow between the parties, the interrupt function current and function grounding of one of said parts comprising said equipment of at least two devices (C1, C2) of electrical protection, respectively a first and a second protection device, mounted in parallel one with respect to another, each consisting apparatus a branch comprising means for interrupting the current and means switching circuit or switches, connected in series, each consisting apparatus protection mechanism (M1, M2) control the isolator comprising a shaft (8, 9), while the M1 control mechanism called first disconnector of a C1 unit, called first, apparatus consists of or n actuator actuable by a user, and controls the M2 mechanism called second control switch apparatus C2, called the second, by means of a U mechanism called bonding, so that during a first part of the maneuver for the actuator in the direction of opening of the first switch (2) to a certain position in rotation of the shaft (8) associated with said disconnector (2), termed the maximum position, the two shafts (8, 9) control respectively of the two disconnectors ( 2, 4) are in rotation, and wherein as the second isolator (4) has reached a certain distance away with respect to its contact (5) associated line, which ensures a certain insulation distance in corresponding branch, both mechanisms M1, M2 are disengaged so that the two shafts (8, 9) continue their journey in rotation independently of each other in the direction of opening disconnectors (2, 4).