公开(公告)号：US10788535B2

公开(公告)日：2020-09-29

申请号：US15542627

申请日：2015-12-28

Applicant: ABB Schweiz AG

Inventor： Gabriele Valentino De Natale ,  Marco Testa ,  Andrea Ricci ,  Andrea Bianco

IPC: G01R31/327 ,  G01R27/26 ,  H02H3/04 ,  G01R31/28 ,  H01H47/00

Abstract: A method is provided for determining the operating status a MV switching apparatus. The method includes providing a test signal to the test winding for an observation period of time, the test signal having a waveform capable of exciting the magnetic element; obtaining first measuring data indicative of a voltage at first terminals of the capacitor bank during the observation period of time; obtaining second measuring data indicative of a voltage at second terminals of the test winding and indicative of a current circulating along the test winding during the observation period of time; and, calculating estimation data indicative of the operating status of the capacitor bank at the end of the observation period of time on the basis of the first and second measuring data, the first estimation data comprising a first estimation value indicative of the capacitance of the capacitor bank.

公开(公告)号：US20200083000A1

公开(公告)日：2020-03-12

申请号：US16566080

申请日：2019-09-10

Applicant: ABB Schweiz AG

Inventor： Andrea Bianco ,  Roberto Penzo ,  Carlo Boffelli

IPC: H01H9/02 ,  H01H9/54 ,  H01H9/30 ,  H01H1/36

Abstract: A switching device for low or medium voltage electric power distribution networks, the switching device including one or more electric poles and, for each electric pole: an insulating housing defining an internal volume of said electric pole; a first pole terminal and a second pole terminal electrically connectable with a corresponding electric phase conductor of an electric source and with a corresponding electric phase conductor of an electric load, respectively; a movable contact and a fixed contact, which are coupleable/decoupleable one to another, the fixed contact being electric connected with the first pole terminal, the movable contact being electrically connected with the second pole terminal; a stack of semiconductor devices adapted to switch in conduction state or in an interdiction state depending on the voltage provided thereto.

公开(公告)号：US10395868B2

公开(公告)日：2019-08-27

申请号：US15512797

申请日：2015-08-05

Applicant: ABB Schweiz AG

Inventor： Andrea Bianco ,  Gabriele Valentino De Natale ,  Andrea Ricci ,  Marco Testa

IPC: H01F7/18 ,  H01H47/00 ,  H01H47/02 ,  H01H50/20 ,  H01H50/44 ,  H01H50/54 ,  G01R31/327

Abstract: A method for determining the operating status of a MV switching device is provided. The method includes providing a test signal to said test coil for an observation period of time. Measuring data is obtained which is indicative of the voltage at the terminals of the test coil and of the current circulating along the test coil during the observation period of time. Observation data is calculated which is indicative of the electric behavior of the test coil at the end of said observation period of time. A transformation function is selected which is indicative of the electromagnetic behavior of the electromagnetic actuator. First estimation data is calculated which is indicative of the operating status of the electromagnetic actuator.

公开(公告)号：US20190148087A1

公开(公告)日：2019-05-16

申请号：US16226711

申请日：2018-12-20

Applicant: ABB Schweiz AG

Inventor： Andrea Bianco ,  Christian Reuber ,  Francesco Belloni ,  Juhani Koivupuro ,  Luciano Chenet

IPC: H01H3/24 ,  H01H3/22 ,  H01H3/46 ,  H01H3/38 ,  H01H3/30

Abstract: A medium voltage circuit switch or breaker includes: at least one movable contact; a fixed contact; and a mechanical or magnetical drive system, which moves the at least one movable contact to a closed or opened position by a movement of a rod and/or a lever. The mechanical or magnetical drive system is linked to a switching generating signal. The mechanical or magnetical drive system includes at least one pyrotechnical actuator or gas generator. The pyrotechnical actuator or the gas generator is linkable to the switching generating signal of the mechanical or magnetical drive system.

公开(公告)号：US20180267103A1

公开(公告)日：2018-09-20

申请号：US15542627

申请日：2015-12-28

Applicant: ABB Schweiz AG

Inventor： Gabriele Valentino De Natale ,  Marco Testa ,  Andrea Ricci ,  Andrea Bianco

IPC: G01R31/327 ,  G01R27/26 ,  G01R31/28

Abstract: A method for determining the operating status a MV switching apparatus, which comprises: one or more electric poles, each comprising a movable contact and a fixed contact adapted to be coupled or uncoupled during the switching operations of the switching apparatus; an electromagnetic actuator for actuating one or more movable contacts of the electric poles, the electromagnetic actuator having at least a test winding wound around a magnetic element; a capacitor bank for providing electric power to the electromagnetic actuator. The method comprises: providing a test signal (ST) to the test winding for an observation period of time (TO), the test signal having a waveform capable of exciting the magnetic element; obtaining first measuring data (VC) indicative of a voltage at first terminals (T1) of the capacitor bank during the observation period of time; obtaining second measuring data (VL, IL) indicative of a voltage at second terminals (T2) of the test winding and indicative of a current circulating along the test winding during the observation period of time; and, calculating estimation data (Ĉ, ICD, IC) indicative of the operating status of the capacitor bank at the end of the observation period of time on the base of the first and second measuring data, the first estimation data comprising a first estimation value (Ĉ) indicative of the capacitance of the capacitor bank.

公开(公告)号：US20180138734A1

公开(公告)日：2018-05-17

申请号：US15566988

申请日：2016-03-04

Applicant: ABB Schweiz AG

Inventor： Andrea Bianco ,  Andrea Ricci ,  Gabriele Valentino De Natale ,  Marco Testa

IPC: H02J7/04 ,  H02J7/02 ,  H02J7/06 ,  H02M3/155

CPC classification number: H02J7/045 ,  H02J7/0052 ,  H02J7/022 ,  H02J7/06 ,  H02J7/345 ,  H02J2007/0059 ,  H02M3/155 ,  H02M2003/1557

Abstract: An electronic charger for electric power distribution installations is provided. The electronic charger includes a DC/DC converter of the SEPIC type including an input stage, an output stage and a coupling capacitor. The input stage is electrically connected with input terminals and includes an input inductor and a switching device. The output stage is electrically connected with output terminals and includes an output inductor, an output capacitor and a blocking device. The coupling capacitor is configured to electrically couple the input stage and the output stage with a capacitive coupling. A first sensor provides a first sensing signal indicative of a charging current. A first controller receives the first sensing signal and a reference signal and provides a driving signal to control the switching device.

公开(公告)号：US20170250042A1

公开(公告)日：2017-08-31

申请号：US15512797

申请日：2015-08-05

Applicant: ABB Schweiz AG

Inventor： Andrea Bianco ,  Gabriele Valentino De Natale ,  Andrea Ricci ,  Marco Testa

IPC: H01H47/00 ,  G01R31/327 ,  H01H50/20 ,  H01H47/02 ,  H01H50/54 ,  H01H50/44

CPC classification number: H01H47/002 ,  G01R31/3274 ,  H01F2007/1855 ,  H01H47/02 ,  H01H50/20 ,  H01H50/44 ,  H01H50/54

Abstract: A method for determining the operating status of a MV switching device (1), which comprises one or more electric poles, each comprising a movable contact and a fixed, contact adapted to be coupled or uncoupled during the switching operations of said switching device, and an electromagnetic actuator comprising a magnetic core, a test coil wound around said magnetic core and a movable plunger operatively coupled to the movable contact of each electric pole. The method comprises: providing a test signal (ST) to said test coil for an observation period of time (TO), said test signal having a waveform adapted to excite said magnetic core; obtaining measuring data (VM, IM) indicative of the voltage at the terminals of said test coil and of the current circulating along said test coil during said observation period of time; calculating observation data (RN, IM) indicative of the electric behaviour of said test coil at the end of said observation period of time on the base of said measuring data; selecting at least a transformation function (F1, F2) indicative of the electromagnetic behaviour of said electromagnetic actuator; and calculating first estimation data (P, T) indicative of the operating status of said electromagnetic actuator on the base of said observation data (RN, LN) by using said transformation function, said first estimation data comprising, a first estimation value (P) indicative of the position of the movable plunger of said electromagnetic actuator.