Abstract: An adapter device (1; 201; 401; 501) for housing a multi-phase low voltage type switch (2) inside a switchboard (100), comprising, for each phase: first and second electric connection means (31, 32) with the switch (2); third and fourth electric connection means (33, 34) with an electric distribution network (4); the adapter device (1; 201; 401; 501) is structured so as to define a connection area (10) housing the first and second electric connection means (31, 32), and also comprising heat removal means (5; 205; 405; 505) which remove heat from the connection area (10).
Abstract: Protection unit for an AC or DC low-voltage power supply line, comprising means for detecting the current circulating in one or more power supply line conductor(s) and at least first electronic protection means operatively coupled to a circuit breaker with at least one pole for inserting along said conductor, characterized in that said detection means comprise at least one resistor suitable for electrical connection in series with said circuit breaker pole and for enabling the passage of the current circulating in said conductor, and at least a first electronic processing circuit that receives a signal indicative of the voltage at the terminals of said resistor and delivers to said first electronic protection means a signal that is indicative of the current circulating in said line conductor.
Abstract: Transmitter for sensing a physical variable relative to a process fluid of an industrial plant, characterized in that it comprises at least a hollow main body for housing a sensor, and a body for direct or indirect interface with a process fluid of which a physical variable requires to be sensed, said interface body being connected to the main body and having an integral structure shaped so that it has at least one internal housing for receiving a separator body and at least one end flange suitable to be operatively coupled, at an external surface thereof, to a fluid container, said external surface being positioned at a distance from and in communication with said internal housing by means of a connection channel.
Abstract: A low-voltage circuit breaker that comprises: a containment structure; a control mechanism; a plurality of circuit breaking poles, each of which comprises a housing containing a scaled ampoule that in turn contains at least one fixed contact and at least one moving contact, which can be mutually coupled and uncoupled, said housing consisting of a first side and a second side that define an interior containing said ampoule, the outer side wall on said first side being complementary to and associable with the outer side wall of said second side, said poles being located side-by-side to form a set of poles complementary to at least a part of said containment structure; operative connection means between said control mechanism and said poles.
Abstract: The present invention relates to a circuit-breaking device for low-voltage systems with a control mechanism that has improved characteristics of compact size and reliability. The circuit-breaking device according to the invention comprises an outer housing containing, for each pole, at least one fixed contact and at least one moving contact suitable for being mutually coupled and uncoupled. The device also comprises a control mechanism comprising a supporting frame that supports a kinematic chain operatively connected to the moving contact so as to enable the latter to be coupled to or uncoupled from the fixed contact. The supporting frame comprises a pair of sides connected by means of a first transverse connecting portion and by further connection means that define a further transverse connecting portion in a different position from that of the first transverse connecting portion.
Abstract: The present invention relates to a control mechanism for the displacement of at least one moving contact of a low-voltage circuit-breaking device. The control mechanism comprises elastic means operatively connectable to the moving contact, at least a first element of which is operatively connected to a second element by means of pin-shaped connection means. The first and second elements each comprise a pair of facing lateral portions that are connected by a transverse portion. The pin-shaped connection means comprise a pair of pin-shaped ends, each of which emerges from one side of a lateral portion of the first element. Said pin-shaped means also comprise a pair of seats, each of which is defined on a lateral portion of the second element. Each pin-shaped end is inserted in a corresponding seat so as to configure an axis of mutual rotation between the first and the second elements.
Abstract: The present invention relates to a moving element for a low voltage switching device and to a switching device comprising this moving element. The moving element according to the invention comprises for each pole a housing unit suitable to receive an elastic element which interacts with an electrical contact. This latter comprises a first contact portion susceptible to contact a further electrical contact and a second portion connectable to a conductive element of the switching device. The electrical contact comprises a pin shaped portion positioned rotating in a seat defined on the housing unit so as to configure a mutual rotation axis of the electrical contact with respect to the housing unit.
Abstract: Device for calibration of a field transmitter comprising a shaped body on which there are disposed first means for sensing magnetic fields the activation of which allows calibration of a first measurement parameter of the transmitter, second means for sensing magnetic fields the activation of which allows calibration of a second measurement parameter of the transmitter, magnetic actuation means suitable to activate said first and second means for sensing magnetic fields. Said shaped body is configured so that it can be removably connected to the transmitter on the external surface of the enclosure thereof.
Type:
Grant
Filed:
March 19, 2007
Date of Patent:
October 25, 2011
Assignee:
ABB S.p.A.
Inventors:
Andrea Moroni, Alessandro Dell'Oro, Ronaldo Dos Santos
Abstract: An electric motor apparatus having an improved cooling system comprising a first compartment housing an electric motor mounted on a rotating shaft, a second compartment housing an electric circuit adapted to connect said electric motor to a power supply source, and a cooling system adapted to dissipate the heat generated by said electric motor apparatus. The cooling system comprises a fan mounted on said rotating shaft in a position adjacent to said second compartment and on the opposite side with respect to said first compartment and at least one finned heat exchanger adapted to dissipate the heat generated by said electric circuit inside said second compartment.
Abstract: A device for opening and/or closing cable duct is provided. The device includes a main body shaped so as to provide a gripping surface for an operator. The main body includes at least one base wall which extends, at least partly, according to a reference plane and which is associated with at least one shaped edge which extends from the base wall towards a further reference plane. At least one joining wall connects the base wall and the shaped edge integrally with each other.
Abstract: A user interface device for a switching device for low voltage electrical circuits comprising one or more electrical poles and an auxiliary device, provided with a first control unit. The user interface device, according to the invention, comprises a second control unit capable of storing data and of exchanging data and/or signals with said first control unit. The user interface device, according to the invention is mechanically associable, in a removable manner, with the switching device. The user interface device, according to the invention is electrically connectable, in a removable manner, to the aforesaid auxiliary device.
Abstract: A single-pole or multi-pole device for low-voltage systems, in particular a circuit breaker or a disconnector, which comprises: an outer casing containing for each pole at least one fixed contact and at least one mobile contact that can be coupled to/uncoupled from one another; a rotating element that comprises a shaped body made of insulating material comprising at least one seat for each pole of said switch, said seat being designed to house at least one mobile contact of a corresponding pole; a control mechanism operatively connected to the rotating element for enabling movement thereof; and one or more elements made of ferromagnetic material set in a position corresponding to at least one portion of the inner surface of said at least one seat of the mobile contact.
Abstract: A low-voltage circuit breaker that comprises: a containment structure; a control mechanism; a plurality of circuit breaking poles, chosen between a first type of pole that comprises a first housing containing a first fixed contact and a corresponding first moving contact that can be coupled to said first fixed contact by means of its rotation around a point, and a second type of pole that comprises a second housing containing a second fixed contact and a corresponding second moving contact that can be coupled to said second fixed contact by means of a translatory movement along an axis; a first kinematic coupling between said control mechanism and said first moving contact, in the case of said poles belonging to said first type of pole, or a second kinematic coupling between said control mechanism and said second moving contact, in the case of said poles belonging to said second type of pole.
Abstract: The present invention relates to a device for housing and connection of accessories, particularly for low-voltage automatic switches, comprising an integrated wiring support. In particular, the housing and connection device (1) has a shaped structure (10) comprising an integrated wiring bus for electrical connection of the accessories. The shaped structure (10) moreover comprises one or more seats (20, 21, 22, 23, 24) for housing the accessories.
Abstract: Electrical component for low-voltage switching devices having an electrode comprised of a substantially rigid body with one or more slots and at least one flexible conductor with an end portion inserted into and joined to an associated slot by means of cold plastic deformation.
Abstract: Described herein is a device for detecting a physical variable for a process fluid via differential measurement, comprising a pressure transmitter having a main body, provided with a pressure sensor and a first pressure-sensitive element and a second pressure-sensitive element operatively connected to the pressure sensor. The device moreover comprises a first remote separator, designed to be positioned in a first detection position, and a second remote separator, designed to be positioned in a second detection position.
Abstract: A method is provided for managing a fault event in a network for distributing low-voltage or high-voltage electrical energy, which comprises at least one voltage source and a load. The method includes performing at least one step of a first procedure for detecting the existence of fault conditions in the load and performing at least one step of a second procedure for determining, on the basis of the evolution in time of the derivative of the instantaneous current in the load, the state of execution of an interruption manoeuvre started by at least one protection device adapted to interrupt locally the passage of current in the load. An electronic protection unit is also provided that is able to execute the aforesaid method.