Abb Technology Ag

Abb Schweiz Ag

Abb T&d Technology Ltd.

Luciano A Di Maio

Gabriele Valentino De Natale

Massimo Bresciani

Carlo Gemme

Marco Testa

Gabriele Suardi

Fabio Gatelli

Andrea Andenna

David G Hart

Christian Reuber

Patrick R Fischer-Carne

Andrea Bianco

Robert L Hanna

Yi Hu

Donato Colonna

Andrea Ricci

Kai Tormod Hansen

William M Egolf

Andrea Crespi

Callisto Gatti

Dukkaiappan Subbiah Thevar

Pravin A Futane

Johan Gunnar

Massimiliano Villano

Ralf Krumm

Leandro Vacirca

Angelo Cleber

A cutout mountable recloser that remains latched to the cutout until the recloser is selectively mechanically unlatched via at least rotation of a driver by an operator. During installation, including while the recloser is being latched to the cutout, the recloser can be in an open condition. Latching of the recloser to the cutout can include increasing a tension force exerted by the cutout on the recloser by increasing a linear distance between first and second terminals of the recloser. With the opened recloser latched to the cutout, the recloser can be mechanically closed via a release of stored energy from a closing mechanism. The recloser can selectively be mechanically unlatched from the cutout by a subsequent reduction in the linear distance between first and second terminals of the recloser, which can reduce the tension force being exerted by the cutout.

Cutout mounted recloser

A power supply unit for an IED for LV or MV electric power applications characterized in that it comprises: a power transformer stage, which is operatively coupled to a feeding conductor to harvest electric power from said feeding conductor; a first storage stage, which is electrically connected to said power transformer stage to store electric energy; a first step-down conversion stage, which is electrically connectable/disconnectable to/from said first storage stage; a switching stage adapted to electrically connect/disconnect said first step-down conversion stage with/from said first storage stage; and a second storage stage, which is electrically connected to said first step-down conversion stage to store electric energy.

Power supply unit for a self-powered intelligent electronic device

A subsea electric power distribution installation including: one or more MV switching apparatuses electrically connected with an electric power source an one or more electric loads, the switching apparatuses being adapted to switch a MV electric power supply to the electric loads; electronic equipment operatively associated with the switching apparatuses for managing the operation of the switching apparatuses, the electronic equipment being configured to receive a LV electric power supply. The subsea electric power distribution installation includes a centralized energy storage unit including one or more storing devices for storing electric energy to feed the electronic equipment, wherein the centralized energy storage unit is adapted to receive electric power from the electric power source to charge the storing devices, wherein the centralized energy storage unit is adapted to provide an electric power supply to the the electronic equipment by absorbing electric power from the storing devices.

Subsea electric power distribution installation

A switching device including: one or more fixed contacts and one or more movable contacts, each movable contact being reversibly movable between an opening position, at which the movable contact is decoupled from a corresponding fixed contact, and a closing position, at which the movable contact is coupled with the corresponding fixed contact; an electromagnetic actuator adapted to actuate the movable contacts between the opening and closing positions, the electromagnetic actuator including a fixed yoke and a movable armature operatively associated with the fixed yoke to form a magnetic circuit, the movable armature being reversibly movable between a first position, which corresponds to the opening position of the movable contacts, and a second position, which corresponds to the closing position of the movable contacts; and a kinematic chain to operatively connect the movable armature with the movable contacts, wherein the electromagnetic actuator includes a first excitation coil and a second excitation coil wound around the fixed yoke. The switching device further include a first power drive circuit adapted to provide a first excitation current to the first excitation coil and a second power drive circuit adapted to provide a second excitation current to the second excitation coil; the first and second power drive circuits are galvanically separated one from another and capable of operating independently one from another.

Switching device for medium voltage electric power distribution installations

A power and control device () for medium voltage applications characterized in that it comprises a power and control unit () having a first feeding port () electrically coupleable with electric power supply means (), a first control device () operatively coupled to said first feeding port, said first control device being adapted to prevent the electrical feeding of said power and control unit through said first feeding port, when the operating temperature of said power and control device is lower than a first threshold value (TH) indicative of a minimum operating temperature provided for said power and control unit.

Power and control device for medium voltage applications

An electronic system is disclosed for an associated electrical apparatus, the system having at least a binary input adapted to receive one or more candidate signals; at least an electronic active load having one or more electronic active devices and operatively connected to the binary input; and a controller operatively associated to the binary input and to the active load. The controller can detect application of a candidate signal to the binary input and electrically drive the active load upon such detection; and after absorption of a predetermined amount of energy, validate the candidate signal if its residual content of energy exceeds a predetermined threshold.

Electronic system for an electrical apparatus and related method

A power and control unit for a low or medium voltage apparatus, said apparatus comprising at least a couple of electrical contacts that can be coupled/separated by means of an electro-magnetic actuator, first power storage means for supplying electric power for the operations of said apparatus and power supply means for charging first said power storage means, characterized in that it comprises:

Power and control unit for a low or medium voltage apparatus

A switchgear panel and a method for servicing/maintaining a switchgear panel are disclosed which provide a Human Machine Interface that includes a first memory unit, and a first circuit breaker on board of which an Intelligent Electronic Device is placed. The Intelligent Electronic Device having an associated memory unit. The first memory unit and/or on the associated memory unit storing sets of data related to one or more of the switchgear panel, the first Intelligent Electronic Device, and the first circuit breaker. The Human Machine Interface is in operative communication with the first Intelligent Electronic Device, to transfer and save one or more of the sets of data stored on the associated memory unit onto the first memory unit or vice versa.

Method for performing service/maintenance on a switchgear panel, and related switchgear panel

A Medium Voltage Circuit Breaker (CB) comprising an electronic protection and control unit having:

Medium voltage circuit breaker with integrated electronic protection unit

A single-coil actuator for low or medium voltage applications which comprises a first assembly which comprises a first casing having a first half-casing and a second half-casing coupled to each other. The first casing defines an internal space housing an electromagnet having a coil and an armature movable between two positions. The first half-casing has a first opening for the mechanical coupling of the armature with an external element, while one of the first or second half-casing has a second opening for the electrical connection of the electromagnet. The electrical connection comprises a first connection element of the socket and plug-type connection which is electrically connected to the coil and positioned in correspondence of the second opening.

Single coil actuator for low and medium voltage applications

A power and control unit for low or medium voltage applications operatively coupable to a low or medium voltage apparatus and to a protection relay having a trip circuit supervision. The power and control unit for low or medium voltage applications according to the invention comprises:

A single coil actuator for low and medium voltage applications which comprises a single coil electromagnet and a power and control unit operatively connected to said single coil electromagnet. The power and control unit comprises: In the single coil actuator according to the invention, said first control unit is a microcontroller including analogue and digital inputs and outputs, and said second control unit is a PWM controller which controls the current flowing in the single coil electromagnet through said power circuit.

Human-machine interface for electrical protection devices

A digital protection and control (P & C) device for a power distribution network, which comprises a computerized control unit comprising a microprocessor. The P & C device, according to the present invention, further comprises an external computerized palmtop computerized device, including a human-machine interface (HMI), which comprises a software communication platform. This software communication platform is aimed at exchanging, by means of a predefined communication channel, data/information related to the software configuration of the HMI and data/information related to the operating status of the P & C device.

Growing community of inventors

Milan, Italy

Luciano A Di Maio