公开(公告)号：US20180159327A1

公开(公告)日：2018-06-07

申请号：US15831877

申请日：2017-12-05

Applicant: ABB S.p.A.

Inventor： Antonio Fidigatti ,  Enrico Ragaini ,  Fabio Monachesi ,  Fabio D'Agostino ,  Federico Silvestro

IPC: H02J3/14 ,  H02J3/38

Abstract: Method for controlling an electric power distribution micro-grid, the micro-grid comprising: an electric coupling node that said micro-grid is electrically disconnectable from an electric power distribution main grid; one or more electric loads, each consuming a corresponding amount of electric power provided by the micro-grid, the electric loads including one or more disconnectable loads electrically disconnectable from the micro-grid; and at least an electric power source including one or more electric power generators. The method of controlling is carried out in response to the disconnection of the micro-grid from the main grid on a disconnection instant and comprises the following: determining whether the electric disconnection of the micro-grid from the main grid is due to a fault in the main grid; if it is determined that the disconnection of the micro-grid from the main grid is not due to a fault in the main grid, executing a load shedding procedure to disconnect in a selective manner one or more disconnectable loads; if it is determined that the disconnection of the micro-grid from the main grid is due to a fault in the main grid, determining whether a drop of a frequency of the micro-grid is in progress following the disconnection of the micro-grid; and if a drop of frequency is in progress following the disconnection of the micro-grid from the main grid, executing the load shedding procedure.

公开(公告)号：USD807304S1

公开(公告)日：2018-01-09

申请号：US29551111

申请日：2016-01-11

Applicant: ABB S.p.A.

Designer： Lucio Azzola ,  Giovanni Frassineti

公开(公告)号：US20170300440A1

公开(公告)日：2017-10-19

申请号：US15488193

申请日：2017-04-14

Applicant: ABB S.p.A.

Inventor： Marco Stucchi ,  Riccardo Panseri ,  Matteo Cogi

IPC: G06F13/366 ,  G06F13/40

Abstract: An accessory device for an electronic protection relay comprising: a first communication port for communication with one or more electronic devices of the electronic protection relay or operatively connected with the electronic protection relay; a second communication port for communication with one or more computerized units through the Internet; a first processing means to manage the operation of the accessory device, the first processing means being operatively coupled with the first and second communication ports. The accessory device is configured to execute a data-gathering procedure (DGP), in which the accessory device polls one or more electronic devices, which are in communication with the accessory device through the first communication port, and receives grid data (D), which are related to the operation of an electric power distribution grid including the electronic protection relay, from the electronic devices in response to the polling. The accessory device is configured to execute a data-publishing procedure (DPP), in which the accessory device transmits the grid data (D) to a publishing computerized unit, which is in communication with the accessory device through the second communication port.

公开(公告)号：US20170263366A1

公开(公告)日：2017-09-14

申请号：US15456549

申请日：2017-03-12

Applicant: ABB S.p.A.

Inventor： Davide Pessina ,  Luca Lanzoni

IPC: H01F7/18 ,  H01F7/08 ,  H01F7/06

CPC classification number: H01F7/18 ,  H01F7/064 ,  H01F7/081 ,  H01F7/1805 ,  H01H47/325 ,  H01H83/10

Abstract: The present invention relates to a coil actuator (1) for low and medium voltage applications, which comprises a electromagnet (2) operatively associated with a movable plunger (8), a power & control unit (3) electrically connected with said electromagnet (2) and first and second input terminals (T1, T2) operatively connected with said power & control unit, wherein an input voltage (VIN) is applied between said first and input terminals during the operation of said coil actuator.The said power & control unit is adapted to provide subsequent launch pulses of drive current (IC) to said electromagnet (2), which are separated in time by at least a predetermined time interval (TI), in response to subsequent transitions of said input voltage (VIN) from values lower than said first threshold voltage (VTH1) to values higher than said first threshold voltage.

公开(公告)号：US20170200574A1

公开(公告)日：2017-07-13

申请号：US15402999

申请日：2017-01-10

Applicant: ABB S.p.A.

Inventor： Nicola Bresciani ,  Roberto Rota Martir

IPC: H01H21/30 ,  H01H21/36

CPC classification number: H01H21/30 ,  H01H1/2041 ,  H01H1/225 ,  H01H21/36 ,  H01H71/1009

Abstract: The present application contemplates a switching device comprising; an outer casing defining an internal volume of the switching device; one or more electric poles, each electric pole comprising one or more mobile contacts and one or more contacts adapted to be coupled or uncoupled during a switching operation of the switching device; a contact shaft accommodated in the internal volume of the switching device and adapted to rotate about a rotation axis during a switching operation of the switching device, the contact shaft having a body comprising one or more contact seats to accommodate at least partially the mobile contacts, so that the mobile contacts rotate with the contact shaft about the rotation axis during a switching operation of the switching device; a control mechanism comprising a supporting frame fixed to the outer casing to provide support to movable members of the control mechanism and one or more connecting rods to provide a force to move the contact shaft during a switching operation of the switching device.

公开(公告)号：US09651580B2

公开(公告)日：2017-05-16

申请号：US14947355

申请日：2015-11-20

Applicant: ABB S.p.A.

Inventor： Luca Ghezzi ,  Fabio Vallarino ,  Paolo Antonello

IPC: G01R15/18 ,  H01H83/22

CPC classification number: G01R15/183 ,  H01H83/226

Abstract: An electronic device (1) for measuring a differential current (ID) in an electric line (100) having a plurality of conductors, said electronic device comprising: a sensing circuit (2) comprising: a current transformer (21) having a magnetic core (211) through which the conductors of said electric line pass, a secondary winding (212) and an excitation winding (213) along which an excitation current (IE) circulates to polarize said magnetic core (211); an output circuit section (22) electrically connected to said secondary winding (212) and configured to provide a first signal (V1). The electronic device (1) further comprises: a first signal processing block (3) configured to process said first signal (V1) and provide a second signal (VD) indicative of said differential current (ID); a second signal processing block (4) configured to process said second signal (VD) and provide a first measurement signal (IDCM) indicative of the absolute value of a time-invariant component of said differential current (ID); a third signal processing block (5) configured to process said first signal (V1) and provide third and fourth signals (S1, S2) indicating whether said magnetic core (211) operates in a positive and/or in a negative saturation region of the hysteresis loop of said magnetic core; a fourth signal processing block (6) configured to process said third and fourth signals (S1, S2) and provide a second measurement signal (SDC) indicative of the direction of the time-invariant component of said differential current (ID).

公开(公告)号：US20170038423A1

公开(公告)日：2017-02-09

申请号：US15228404

申请日：2016-08-04

Applicant: ABB S.P.A.

Inventor： Enrico RAGAINI ,  Marco CARMINATI

IPC: G01R31/08 ,  H01F38/40 ,  H02M7/04 ,  H02H1/00

CPC classification number: G01R31/086 ,  G01R31/025 ,  H01F38/40 ,  H02H1/0007 ,  H02M7/04

Abstract: The invention relates to a method (100) for detecting faults in a LVDC electric line (500) characterised in that it comprises the following steps: acquiring (101) a first detection signal (VLOW) indicative of low-frequency components of an unbalancing current (IG) between a plurality of conductors of said electric line, said first detection signal being obtained by means of a low-pass filtering of a corresponding measuring signal (VM1) indicative of said unbalancing current; acquiring (102) a second detection signal (VHIGH) indicative of high-frequency components of an unbalancing current (IG) between a plurality of conductors of said electric line, said second detection signal being obtained by means of a high-pass filtering of a corresponding measuring signal (VM2) indicative of said unbalancing current; obtaining (103) a third detection signal (RT) by calculating the ratio between said first and second detection signals (VLOW, VHIGH); checking (104) whether a DC current (IF) is present by comparing said third detection signal (RT) with a first threshold value (TH1). In a further aspect, the invention relates to an electronic device (1) including processing means for carrying out said method.

Abstract translation: 另一方面，本发明涉及一种包括用于执行所述方法的处理装置的电子设备（1）。

公开(公告)号：US09078340B2

公开(公告)日：2015-07-07

申请号：US13892619

申请日：2013-05-13

Applicant: ABB S.p.A.

Inventor： Daniele Cagliani ,  Graziano Coloca ,  Pierceleste Benedetti

IPC: H02G3/08 ,  H05K5/00 ,  H02B1/30

CPC classification number: H05K5/0004 ,  H02B1/303

Abstract: A cabinet for an electrical switchboard includes a supporting base and a frame mounted on the supporting base. The supporting base includes a base element having a lower wall configured to rest on a bearing surface, and a first lateral wall and a second lateral wall which protrude transversally from the lower wall and face each other. The base element includes a first upper wall protruding from an upper end of the first lateral wall towards the second lateral wall, a second upper wall protruding from an upper end of the second lateral wall towards the first lateral wall, so as to extend over at least a portion of the first upper wall. The base element also includes a coupling mechanism which couples the first and second upper walls to each other for supporting a corresponding portion of the frame.

Abstract translation: 用于电气配电盘的机柜包括支撑基座和安装在支撑基座上的框架。 支撑基座包括具有被配置为搁置在支承表面上的下壁的基座元件，以及从下壁横向突出并面对彼此的第一侧壁和第二侧壁。 基部元件包括从第一侧壁的上端朝向第二侧壁突出的第一上壁，从第二侧壁的上端朝向第一侧壁突出的第二上壁，以便在 第一上壁的至少一部分。 基座元件还包括联接机构，其将第一和第二上壁彼此连接以支撑框架的对应部分。

公开(公告)号：US20140332500A1

公开(公告)日：2014-11-13

申请号：US14270681

申请日：2014-05-06

Applicant: ABB S.p.A.

Inventor： Davide Pessina ,  Romeo Bianchetti ,  Rudolf Gati ,  Thorsten Strassel

IPC: H01H33/04

CPC classification number: H01H33/04 ,  H01H9/542 ,  H01H2009/546

Abstract: Exemplary embodiments are directed to a direct current switching apparatus including at least a first mechanical switching device which is suitable to be positioned along an operating path of an associated DC circuit and includes a fixed contact and a corresponding movable contact which can be actuated between a closed position and an open position along the operating path, wherein an electric arc can ignite between the contacts under separation. The switching apparatus includes an electronic circuit having a semiconductor device which is suitable to be positioned along a secondary path and connected in parallel with the first mechanical switching device. The electronic circuit can be configured to commute the flow of current from the operating path to the secondary path and extinguish an electric arc ignited when the movable contact separates from the fixed contact when the first mechanical switching device fails to extinguish the same.

Abstract translation: 示例性实施例涉及直流开关装置，其包括至少第一机械开关装置，其适于沿着相关联的DC电路的操作路径定位，并且包括固定触点和相应的可动触点，所述触点可在闭合 位置和沿着操作路径的打开位置，其中电弧可以在分离的触点之间点燃。 开关装置包括具有半导体器件的电子电路，该半导体器件适于沿着次级路径定位并与第一机械开关器件并联连接。 电子电路可以被配置为在第一机械开关装置不能熄灭电动线路时将电流从操作路径切换到次路径，并且当可动触头与固定触点分离时熄灭点火的电弧。

公开(公告)号：USD707636S1

公开(公告)日：2014-06-24

申请号：US29459135

申请日：2013-06-26

Applicant: ABB S.p.A.

Designer： Stefano Besana ,  Lucio Azzola