摘要:
An electric assembly suitable to be installed in a switchgear, comprising: - a switching device having a casing and at least one electric phase comprising a couple of contacts which can be actuated by an associated kinematic chain, wherein an electric terminal is operatively associated to said at least one electric phase and connected to the kinematic chain; - blocking means which are adapted to be operatively connected to the casing and/or to the switchgear, and which are adapted to operatively interact with the kinematic chain so as to interrupt a displacement of the electric terminal along at least one direction.
摘要:
A Medium Voltage circuit breaker which comprises a pole assembly having, for each phase, a first fixed contact and a second movable contact reciprocally couplable/uncouplable between an open and close position. The circuit breaker further comprises an actuator to actuate the opening and closing operation of said circuit breaker, and a kinematic chain operatively connecting said actuator to said movable contact. The kinematic chain comprises a sliding element operatively connected to said actuator, said sliding element having a first sliding surface operatively coupled to said movable contact and being movable between a first, open, position and a second, closed, position.
摘要:
A medium-voltage vacuum circuit breaker (100) comprising: - a plurality of interruption poles (1) each having two connection terminals, and a vacuum envelope (4) which contains a fixed contact and a mobile contact electrically coupled each to a corresponding terminal; - an operating mechanism (200) which has a front panel (7) and is suitable to supply actuating energy for moving the mobile contacts of the interruption poles between a circuit breaker closed position where they are each electrically coupled with the corresponding fixed contact and a circuit breaker open position where they are disengaged therefrom; - means (300) for transmitting the actuating energy from the operating mechanism to the mobile contacts; characterized in that each interruption pole comprises an insulating box delimiting an internal free volume which accommodates a corresponding vacuum envelope, said interruption poles being aligned each other and being arranged so as the respective mobile contacts are movable, during actuation, along a substantial vertical axis, with the vertical axes of the interruption poles lying in a common vertical plane which is substantially perpendicular to the front panel, and in that said transmission means are positioned on a side of the aligned interruption poles.
摘要:
Electrical adapter for connecting a connection contact of a circuit breaker with an associated contact piece of an electrical circuit along which said circuit breaker has to be inserted, comprising: - a hollow tubular element having a first end portion and a second end portion suitable to be electrically connected to the connection contact and said contact piece, respectively, the inner cavity of the hollow tubular element having, at said first end portion, a first frusto-conical shape; - a first connector having a hollow deformable body, the first connector being suitable to be accommodated inside the first end portion having a first frusto-conical shape; - a locking body suitable to be securely placed along the inner cavity of the hollow tubular element; - a second connector comprising a first connection portion configured to be accommodated inside the first end portion having a first frusto-conical shape of the hollow tubular element, a main portion extending transversely from and outside of the hollow tubular element, and a contact portion which extends from the central portion in a direction opposite to that of the first portion and is devised to be electrically connected to said connection contact of a circuit breaker. The second connector is adapted to be mechanically secured to the locking body with the first connector mechanically fitted between and in contact with the first end portion having a first frusto-conical shape and the first connection portion of the second connector itself. The position of the contact portion is adjustable relative to the hollow tubular body.
摘要:
An electric device for an electric circuit having at least a first insulator with a first main insulating body and a second insulator with a second main insulating body. The first and second main insulating bodies protrude from corresponding portions of the electric device along a first longitudinal axis and a second longitudinal axis, respectively, with said first and second longitudinal axes lying parallel to each other in a common plane. The first insulator comprises at least a first insulating fin and at least a second insulating fin which protrude from the first main insulating body so as to lie in a respective first plane and a second plane, respectively, perpendicular with respect to said common plane. The first fin and the second fin have a first distance D 1 and a second distance D 2 , respectively, between their delimiting ends nearer to the second longitudinal axis and the first longitudinal axis, wherein D 1 > D 2 . The second insulator comprises at least a third insulating fin and at least a fourth insulating fin which protrude from the second main insulating body so as to face the first fin and the second fin, respectively. The third and fourth fins have a third distance D 3 and a fourth distance D 4 , respectively, between their delimiting ends nearer to the first longitudinal axis and the second longitudinal axis. The first, second, third and fourth distances D 1 , D 2 , D 3 and D 4 satisfy the following relationships: D 1 > D 3 ; D 4 > D 2 ; D 4 > D 3 ; and D 4 D 1 + D 1 - D 2 .
摘要翻译:一种电路的电气装置,具有至少具有第一绝缘体的第一绝缘体和具有第二主绝缘体的第二绝缘体。 第一和第二主绝缘体分别沿着第一纵向轴线和第二纵向轴线从电气装置的相应部分突出,其中所述第一和第二纵向轴线在共同的平面中彼此平行。 第一绝缘体包括至少第一绝缘鳍片和至少第二绝缘鳍片,其从第一主绝缘体突出以分别位于相对于所述公共平面垂直的相应的第一平面和第二平面中。 第一翅片和第二翅片分别在它们更接近第二纵向轴线和第一纵向轴线的分隔端之间具有第一距离D 1和第二距离D 2,其中D 1> D 2。 第二绝缘体包括至少第三绝缘片和至少第四绝缘片,其从第二主绝缘体突出以分别面对第一鳍片和第二鳍片。 第三和第四鳍片分别在它们更接近第一纵向轴线和第二纵向轴线的限定端之间具有第三距离D 3和第四距离D 4。 第一,第二,第三和第四距离D 1,D 2,D 3和D 4满足以下关系:D 1> D 3; D 4> D 2; D 4> D 3; 和D 4
摘要:
A Medium Voltage circuit breaker which comprises an insulating base frame supporting: a pole assembly having, for each phase, an interruption unit housing a fixed contact and a movable contact reciprocally couplable/uncouplable between an open and a closed position; an actuator to actuate the opening and closing operation of said circuit breaker; and, a control and diagnostic unit comprising a control box having a casing housing a plurality of accessory devices of said circuit breaker.