摘要:
Adapter (1) for the modular connection of electrical devices (2) to a bar-based electricity distribution system (4), featuring a clamping device (31) for the electrical connection to the oars (4) and a conductor (33), forming an integral part of the clamping device (31), for the electrical connection of the device (2), such that the clamping device (31) is located on the side (3) of the adapter (1) facing the bars (4) with the connection axis (47) aligned with the axis (48) of one bar (4), which features a slider (34) on the side of the adapter (1) opposite the clamping device (31), the said slider (34) supporting the device (1) being geometrically coupled to the body (30) of the adapter (1) and being able to slide in relation to the adapter (1) to permit the insertion and withdrawal of the end (37) of the contact of the conductor (33) in the device (2) and with the opposite edges (8, 9) of the adapter (1) featuring flanges (10, 11) for connection to a supporting structure (7).
摘要:
In an electrical distribution network, a measurement of a single electrical power load is obtained. With this objective, the effective value of the voltage (V) and its frequency (f) are measured in the protection and control device (3) of the primary switch of a board (2), while the protection and control device (21) associated with the particular load (10) measures the effective current (I1) and the phase angle (Φ) between voltage and current is determined by measuring the difference between the instant (tl) of zero crossing of the voltage (V) and that (t2) of the current (I1) in the load (10).
摘要:
Low-voltage circuit breaker (1) exhibiting live levers (24) operatively connected to a control device (10) for opening and closing the circuit breaker (1), fixed live terminals (25, 26) and electric arc extinction chambers (75), there being provision for the levers (24), the terminals (25, 26) and an extinction chamber (75) to be enclosed in half-shells (20, 21) constituting a pole (2), for the half-shells (20, 21) to be made from insulating material and for several poles (2) to be clamped in a supporting frame (3, 4, 5, 6, 7, 8, 9).
摘要:
Modular adapter (1) for electrical devices (2), featuring a clamping device (31) for the connection to the bars (4) of a multiple-pole bar-based distribution system and a conductor (33) for the electrical connection of a device (2), such that the adapter (1) is symmetrical in relation to the axis (3) of its centre line, that the clamping device (31) is located on the side of the adapter facing the bars (4) with the connection axis (39) aligned with the axis (39') of the bar (4), that the side of the adapter (1) opposite the clamping device (31) features a seating (55) for receiving the electrical device (2) in a geometrical connection, and that the opposite edges (8) of the adapter (1) feature flanges (10) for fixing to a cabinet structure (7).
摘要:
Low-voltage electrical distribution board in which the consumer switches can be plugged, by means of the interposition of modular support adapters, into the distribution bars which can be accessed through openings distributed as a modular reticle in an interposed insulating panel. The respective switch/adapter units have connection tags which allow clamp-like releasable coupling to the distribution bars. The handling of the switch/adapter units is facilitated by handles, one of which is removable.
摘要:
Low-voltage circuit breaker (1) exhibiting live levers (24) operatively connected to a control device (10) for opening and closing the circuit breaker (1), fixed live terminals (25, 26) and electric arc extinction chambers (75), there being provision for the levers (24), the terminals (25, 26) and an extinction chamber (75) to be enclosed in half-shells (20, 21) constituting a pole (2), for the half-shells (20, 21) to be made from insulating material and for several poles (2) to be clamped in a supporting frame (3, 4, 5, 6, 7, 8, 9).
摘要:
The present invention relates to an electrical arc interruption chamber, in particular for fluid-quenched circuit breakers, in which, inside a tightly sealed insulating encasing, containing an arc-quenching gas, provided are current-bearing connections, respectively supporting a movable main contact and a stationary main contact, each one of the main contacts being provided with its respective arc contact, and wherein the movable arc contact of the tulip type is positioned inside a wall element of insulating material, having, e.g., the shape of an upside-down bell, the movable contact and the bell-shaped element being housed inside the body of the movable main contact, in order to define a first chamber for the passage of the arc-quenching gas between the said body and the said insulating element, defined being furthermore a second chamber for the passage of the arc-quenching gas, which is movable between the movable arc contact and the bell-shaped element.