公开(公告)号：WO2023083831A1

公开(公告)日：2023-05-19

申请号：PCT/EP2022/081177

申请日：2022-11-08

Applicant: ENOVATES NV

Inventor： VISPOEL, Stijn

IPC: B60L53/30 ,  G01R1/04 ,  G01R15/18 ,  G01R19/10 ,  G01R31/00 ,  G01R31/52 ,  G01R33/04

Abstract: An electrical circuitry for detecting a fault current in an electric vehicle charging station. The electrical circuitry comprises a printed circuit board, comprising at least two conductive tracks for conducting electrical charging currents for charging and/or discharging the electric vehicle along the printed circuit board. The electrical circuitry further comprises a fluxgate current sensor for detecting a fault current in the at least two conductive tracks, comprising a magnetic core with a through-hole arranged around the at least two conductive tracks passing through the through-hole of the magnetic core.

公开(公告)号：WO2023031472A2

公开(公告)日：2023-03-09

申请号：PCT/EP2022/074660

申请日：2022-09-05

Applicant: ANALOG DEVICES INTERNATIONAL UNLIMITED COMPANY

Inventor： HURWITZ, Jonathan Ephraim ,  O'BRIEN, Michael

IPC: G01R15/18 ,  G01R19/00 ,  G01R19/12 ,  G01R19/25 ,  G01R35/00 ,  G01R15/181 ,  G01R19/0092 ,  G01R19/2506 ,  G01R35/005

Abstract: Various current measurement systems and methods of signal processing are disclosed. In one example, there is a current measurement system that includes a filter with a corner frequency within the operating frequency range of the current measurement system. This provides a system with good SNR, whilst also preventing or reducing the likelihood of output saturation during large di/dt spikes. The system further includes an equaliser arranged to compensate for the phase and/or magnitude response of the filter within the operating frequency range.

公开(公告)号：WO2023012609A1

公开(公告)日：2023-02-09

申请号：PCT/IB2022/056967

申请日：2022-07-28

Applicant: ELECTROCERAMICA S.A.

Inventor： BARBERI, Marco

IPC: G01R15/14 ,  G01R15/18 ,  H01F27/28 ,  H01F27/36 ,  H01F38/26 ,  H01F38/30

Abstract: Radial board (1) for measuring physical quantities of an electrical conductor (E) comprising a plurality of parallel conductive layers (1a). Each conductive layer (1a) comprises a first portion (2a) comprising a zero potential area (3) with a screen function, extending parallel to a geometric axis of reference, and defining a shadow zone which is distal with respect to the geometric axis of reference and a second portion (2b) comprising one or more side by side and symmetrical spiral conductive tracks (6) with magnetic field transducer function. The second portion (2b) operates in the shadow zone. The radial board (1) further comprises a series of connection pathways (8) between the parallel conductive layers (1a) passing at least through the zero potential area (3).

公开(公告)号：WO2023001811A1

公开(公告)日：2023-01-26

申请号：PCT/EP2022/070180

申请日：2022-07-19

Applicant: EGSTON SYSTEM ELECTRONICS EGGENBURG GMBH

Inventor： JAMY, Roman ,  PRAND-STRITZKO, Ernst ,  ERDÖSI, Daniel ,  HÖGENAUER, Martin

IPC: G01R15/18 ,  H01B17/00

Abstract: Bei einer Stromsensorspulenanordnung (1) umfassend wenigstens eine Sensor-Luftspule (2), welche Sensor-Luftspule (2) als Rogowskispule (3) ausgebildet ist, wobei die Stromsensorspulenanordnung (1) ein Gehäuse (4) aufweist, welches Gehäuse (4) die Rogowskispule (3) umfasst, wird vorgeschlagen, dass die Rogowskispule (3) in ein Vergussmittel (5) eingebettet ist, dass das Vergussmittel (5) wenigstens einen ersten Werkstoff und einen zweiten Werkstoff umfasst, dass der erste Werkstoff ein elektrischer Isolierstoff ist, dass der zweite Werkstoff Partikel mit vorgebbarer elektrischer Leitfähigkeit umfasst, und dass das Vergussmittel (5) einen spezifischen elektrischen Widerstand zwischen 10 Ω.cm und 6000 Ω.cm, insbesondere zwischen 500 Ω.cm und 5000 Ω.cm, vorzugsweise zwischen 2000 Ω.cm und 3000 Ω.cm, aufweist.

公开(公告)号：WO2023277242A1

公开(公告)日：2023-01-05

申请号：PCT/KR2021/011720

申请日：2021-09-01

Applicant: 주식회사 루텍

Inventor： 정창용 ,  조성운 ,  변영복 ,  조국춘 ,  최성봉

IPC: G01R19/00 ,  G01R1/04 ,  G01R15/18 ,  G01R15/20 ,  G01R35/00

Abstract: 본 발명에 따른 전류 계측 장치는, 금속바(10)와 이에 결합하는 전류센서모듈(20)을 이용하여 상기 금속바(10)를 통하여 흐르는 전체전류를 계측하기 위한 것으로서, 상기 금속바(10)는, 직사각형이고 판상인 아웃트라인을 가지되, 길이방향의 중앙에는 상기 전체전류가 나뉘어져 흐를 브랜치들((3 이상인 홀수개임)를 포함하는 브랜치셋(11)이 형성되도록 하기 위해 짝수개의 분할슬릿(11a,11b)이 폭뱡향으로 배치되며, 상기 분할슬릿(11a,11b)의 전단에는 상기 직사각형의 두 장변으로부터 내측으로 들어간 제 1-1 노치(12a) 및 제 1-2 노치(12b)를 구비하고, 상기 분할슬릿(11a,11b)의 후단에는 상기 직사각형의 두 장변으로부터 내측으로 들어간 제 2-1 노치(14a) 및 제 2-2 노치(14b)를 구비하는 것을 특징으로 한다.

公开(公告)号：WO2022242819A1

公开(公告)日：2022-11-24

申请号：PCT/EP2021/062922

申请日：2021-05-17

Applicant: HITACHI ENERGY SWITZERLAND AG

Inventor： LINDELL, Elisabeth ,  HALEN, Stefan

IPC: H01T1/12 ,  H01C7/12 ,  H02J13/00 ,  G01R15/18 ,  H02H9/04 ,  G01R19/165

Abstract: A monitoring arrangement (10) for monitoring a surge through a surge arrester (12), said surge arrester (12) being adapted to be connected to a power network in order to protect an electrical equipment (14) of the power network against incoming surges passing through the surge arrester (12). The monitoring arrangement (10) detects a reignition surge, which reignition surge has been occasioned by a switching of a circuit breaker. The monitoring arrangement (10) further calculates the number of detected reignition surges.

公开(公告)号：WO2022214202A1

公开(公告)日：2022-10-13

申请号：PCT/EP2021/059357

申请日：2021-04-09

Applicant: HITACHI ENERGY SWITZERLAND AG

Inventor： POELTL, Anton ,  HOFBAUER, Werner

IPC: G01R15/18

Abstract: A dead-tank circuit breaker includes a tank including a circuit interrupter therein, a bushing coupled to the tank and configured to receive an electrical conductor therethrough, and a Rogowski coil around the electrical conductor outside the tank. The Rogowski coil is configured to detect a current flow through the electrical conductor and to generate a measurement signal responsive to detecting the current flow through the electrical conductor. The dead-tank circuit breaker further includes a main electronics circuit configured to receive the measurement signal.

公开(公告)号：WO2022167986A1

公开(公告)日：2022-08-11

申请号：PCT/IB2022/050977

申请日：2022-02-04

Applicant: CARTENDER SRL

Inventor： GRILETTI, Cristiano

IPC: G01R15/18

Abstract: An assembly for conditioning the reading of a current sensor comprises a current sensor (100) having a core (101), a primary winding (104) adapted to be connected to an electrical grid for the flowing of current and the generation of a variable magnetic flux in said core (101) and a secondary winding (102) wound around said core (101) for detecting the current or voltage induced by said magnetic flux, reading means (103) of the induced current adapted to be connected to an electrical energy storage and management system, at least one additional winding (105, 107) placed around said core (101) and associated with a control circuit (106) to alter the current value measured by said secondary winding (102) to condition the reading of the current or tension measured by said reading means (103).

公开(公告)号：WO2022129732A1

公开(公告)日：2022-06-23

申请号：PCT/FR2021/052227

申请日：2021-12-07

Applicant: SAFRAN ELECTRICAL & POWER

Inventor： CIMA, Lionel

IPC: G01R15/18

Abstract: Capteur de courant (100) comprenant : - une paire (130), de bobines électriques (131, 132) identiques à noyaux superparamagnétiques et entourées d'une tresse de blindage commune; - un moyen d'excitation en courant continu (110) configuré pour faire circuler un courant continu (IDC) dans au moins une (131) des bobines de la paire de bobines et un moyen d'ajustement d'une intensité du courant continu; - un premier moyen d'excitation en courant alternatif (110) configuré pour faire circuler un courant alternatif (IBF) à une première fréquence dans les bobines (131) de la paire parcourues par le courant continu; - un deuxième moyen d'excitation en courant alternatif (120) configuré pour faire circuler un courant alternatif (IHF) à une deuxième fréquence supérieure à la première fréquence dans les deux bobines (131, 132) de la paire de bobines; - un moyen de mesure (160) d'une force électromotrice de type Effet Néel® (VN) aux bornes des deux bobines (131, 132) de la paire.

公开(公告)号：WO2022097050A1

公开(公告)日：2022-05-12

申请号：PCT/IB2021/060191

申请日：2021-11-04

Applicant: INTDEVICE LIMITED

Inventor： YU, Li Jun ,  HAO, Hao ,  VAN VUGT, Anton

IPC: H02J50/12 ,  H02J50/10 ,  H02J5/00 ,  G01R15/18 ,  H01F38/14 ,  H02J7/00 ,  H01H47/04 ,  H02J50/80

Abstract: An inductive power transfer receiver comprising: a receiving coil, a tuned circuit comprising the receiving coil, and a transformer sub-circuit connected to the tuned circuit, the transformer sub-circuit comprising a transformer primary side and a transformer secondary side, wherein in use, the transformer sub-circuit: reduces current in the receiving coil, improves power factor, and/or improves stability in the tuned circuit.