TH4499B - Metal cabinet containing switch gear - Google Patents

Abstract

Metal cabinet containing switch gear Consists of cabinet (2) with floor (2A), with circuit breaker (8) moving freely in or out of cabinet (2) by caster factor (9) sliding on floor (2A. ) ground switch (18), rod (23) forced switch (18) and interlock system (B) between circuit breaker (8) and switch (18) interlock (B), including fixed wheel stopper. One pair (42,43), each fixed some distance apart to the ground outside the walkway of at least one caster (9). There is a movable caster stop (44), which is essentially the same width as the distance between stationary caster stops (42,43), can be provoked to protrude into the carriage path. or shrinking out of the corridor with interlocking system connected (c) with a switch (18) which activates the movable caster stop (44), so that the weight acting on the movable caster stop (44) by the impact of the caster (9) has the characteristics It is important to be countered by the reactive force from the stationary handwheel (42,43). What is more, the circuit breaker (8) stops at a certain position, making the interlock (B) reliable. high in performance

Claims (4)

1. Metal cabinet containing switch gear, including floor cabinet with vertical walls. Zoning the compartment containing the circuit breaker - one pair of current-disconnectors fixed to a vertical wall - load bus-earth switch so that the load circuit connected to the load bus to earth - the earthing switch to actuate. mechanism Including an earthed operating rod with one end connected to the earthing switch One circuit breaker includes a pair of connecting rods and multiple castors. Is placed to move along the floor of the cabinet In a way that can cause the circuit breaker to move inward or out of the circuit breaker chamber in order to connect electrically. And disconnect each connecting rod with a common contributor to the disconnector Mechanical interlock between circuit breaker and earthing switch To prevent the circuit breaker from reaching the electrically connected position. When the earthing switch is off Which the interlock consists of One pair of fixed long wheel stopper Is installed on the floor of the cabinet In a parallel relationship is essential And there is a gap between each other A fixed castor that is placed outside the wheel path. One long movable caster stop is dotted wide. As important as the gap between the stationary wheel stops. Which is placed in a channel The movable castor stop was set up to protrude. And was pulled back from the pathway While being supported by the fixed wheel stop and the link mechanism Connect the ground switch, actuate the mechanism and the fixed scroll wheel stop. The mechanism was provided to extend the movable castor stop. Enter the aisle when the ground switch is off and cause the movable castor stopper to block the path of at least one of the wheels. 2. The metal cabinet contains the switch gear according to claim 1, which is a movable wheel stopper. There is one pivot that can move. And the linkage mechanism consists of a connecting rod with a second movable pivot. And which protrudes along a long way near the floor in the cabinet And can be shifted along a longitudinal beam, including the first and second longitudinal channels. And supported by pivot fixed relative to the ground In order to rotate the body horizontally And which connect the bars to be connected to the wheel stops moving together And the bars used to connect the beam were connected together by the first long slot interlacing device. With the second movable pivot The movable caster stop and the beam are connected by an insert between the second long channel and the first movable month. 3. The metal cabinet contains the switch gear according to claim No. 2, which when the movable wheel stop extends into the corridor. The first movement pivot does not touch either end of the second long slot. Which has an important feature in the diagonal with the long axis of the movable wheel stopper And the second movable pivot will not touch either end of the first long slot. Which has important characteristics parallel to the long axis of the movable caster wheel stop 4. A metal cabinet containing a switch gear according to claim 2 or No. 3, in which the operating linkage mechanism consists of an operating source bar that is a movable wheel stopper. It is perpendicular to the ground and can be conveyed vertically to a bifurcated beam with two operating ends and can be rotated with one operating handle. One operating end can be rotated to the upper end of the operating source bar as the moving wheel stop. And the other end of the working end can be rotated with the other end of the earthing switch operating rod