公开(公告)号：EP3028357B1

公开(公告)日：2023-06-07

申请号：EP14739729.3

申请日：2014-07-07

发明人： ESSCHENDAL, Horst ,  KLAWITTER, Thomas ,  MIEDERER, Paul ,  SCHMID, Helmut ,  SCHWAIGER, Hans

IPC分类号： H02H3/087 ,  H02H3/24 ,  H02H7/26 ,  B60R16/033

公开(公告)号：EP4068545A1

公开(公告)日：2022-10-05

申请号：EP20894879.4

申请日：2020-08-18

申请人： SANYO Electric Co., Ltd.

发明人： NAKAYAMA, Masato

IPC分类号： H02H3/24 ,  B60L3/00 ,  G01R31/00 ,  G01R31/52

摘要： To carry out a failure diagnose of a leakage detecting device highly precisely, first voltage an output unit (11a, OP1) generates a cyclic voltage that changes cyclically, and applies the cyclic voltage to the other end of a coupling capacitor (Cc) via a first resistance (R1). A second resistance (R2) and a third resistance (R3) are connected in series between a node and a second voltage output unit (11e, OP3), the node being between the coupling capacitor (Cc) and the first resistance (R1). A voltage measurement unit (11b) measures a voltage at a voltage dividing point between the second resistance (R2) and the third resistance (R3). In a period in which two types of fixed voltages are applied to the voltage dividing point in order, a diagnosing unit (11d) determines whether the leakage detecting device (10) is in a normal state, based on the voltage measured by the voltage measurement unit (11b).

公开(公告)号：EP4050746A1

公开(公告)日：2022-08-31

申请号：EP21305240.0

申请日：2021-02-26

申请人： OVH

发明人： THIBAUT, Christophe Maurice ,  MAILLOT, Patrick-Gilles

IPC分类号： H02J1/00 ,  H02J1/08 ,  H02J1/10 ,  H02H3/087 ,  H02H3/20 ,  H02H3/24 ,  G06F1/26 ,  G06F1/28 ,  G06F1/30

摘要： A power distribution circuit for providing electric power from a plurality of power supplies to a plurality of loads comprises a combiner of power outputs of the power supplies to provide power at a given voltage to a plurality of hot swap modules that are each electrically connected to the combiner and to a power input of a corresponding load. Each hot swap module verifies one or more conditions selected from the given voltage being at least equal to a minimum voltage threshold, the given voltage not exceeding a maximum voltage threshold, and a current consumed by the load not exceeding a maximum current threshold. Each hot swap module delivers power to the power input of the corresponding load when all selected conditions are met and isolates the power input of the corresponding load from the power supplies when any one of the selected conditions is not met.

公开(公告)号：EP3948311A1

公开(公告)日：2022-02-09

申请号：EP20712310.0

申请日：2020-03-17

申请人： Eaton Intelligent Power Limited

发明人： CULCA, Horea

IPC分类号： G01R19/02 ,  H02H3/24

公开(公告)号：EP3905465A1

公开(公告)日：2021-11-03

申请号：EP19936621.2

申请日：2019-07-11

申请人： Huawei Technologies Co., Ltd.

发明人： GU, Guilei ,  YAO, Xiaofeng

IPC分类号： H02H3/24

摘要： This application provides a converter, a method, and a system applied to a photovoltaic power generation system. The converter includes a controller and at least one switching transistor. The converter supports access of at least two photovoltaic units, the at least two photovoltaic units are connected in series inside the converter by using the switching transistor, and the photovoltaic unit is formed by at least one photovoltaic component connected in series and in parallel. The controller is configured to: when a shutdown instruction is received or a heartbeat instruction is lost within a preset time period, control the switching transistor to be disconnected, so that any two photovoltaic units connected in series are disconnected. According to the converter provided in this application, any two photovoltaic units connected in series can be disconnected when the photovoltaic power generation system is shut down. In this way, no dangerous high voltage exists in a photovoltaic array formed by the photovoltaic units, thereby improving safety of the photovoltaic power generation system.

公开(公告)号：EP3017516B1

公开(公告)日：2021-09-15

申请号：EP13888720.3

申请日：2013-07-01

发明人： BEIERSCHMITT, Joseph ,  SCHROEDER, Jeremy D.

IPC分类号： H02H1/00 ,  H02H3/00 ,  H02H3/02 ,  H02H3/04 ,  H02H3/10 ,  H02H3/20 ,  H02H3/24

公开(公告)号：EP3859763A1

公开(公告)日：2021-08-04

申请号：EP20154631.4

申请日：2020-01-30

申请人： ABB Schweiz AG

发明人： Tüysüz, Arda ,  Breisch, Sebastian ,  Reutner, Holger ,  Schulmann, Boris

IPC分类号： H01H83/12 ,  H02H3/24 ,  H01H71/02

摘要： A voltage monitoring device comprises input connectors for receiving an input voltage, a linkage (7, 8, 14), a spring (12) for urging the linkage (7, 8, 14) towards a first stable position, and a solenoid (5) powered by the input voltage and adapted to displace the linkage (7, 8, 14) from the first position to a second position if a voltage applied to the solenoid (5) exceeds a first threshold, and to maintain the linkage in the second position while the voltage applied to the solenoid exceeds a second threshold lower than the first threshold. A switch (22) controlled by the linkage (7, 8, 14) is connected to the input connectors and to the solenoid (5) so as apply a first percentage of the input voltage to the solenoid (5) while the linkage (7, 8, 14) is in the first position and to apply a second percentage of the input voltage (Vcc) to the solenoid (5) while the linkage (7, 8, 14) is in the second position, the second percentage being less than the first percentage.

公开(公告)号：EP3051644B1

公开(公告)日：2019-10-02

申请号：EP15153343.7

申请日：2015-01-30

申请人： General Electric Technology GmbH

发明人： VON ALLMEN, Peter

IPC分类号： H02H3/247 ,  H02H3/24 ,  H01H83/12 ,  H01H47/32

公开(公告)号：EP3484036A1

公开(公告)日：2019-05-15

申请号：EP18209957.2

申请日：2007-01-18

申请人： ADC Telecommunications, INC.

发明人： COFFEY, Joseph Christopher ,  BLICHFELDT, Bradley J.

IPC分类号： H02M3/158 ,  H05K9/00 ,  H02M7/00 ,  H02H3/087 ,  H02H3/24 ,  H05K7/14

摘要： A modular power distribution system comprising a chassis; a backplane including a plurality of module connection locations; a plurality of modules mounted in the chassis, each module mounted to a module connection location and at least one of the plurality of modules including a circuit protection device operable at a plurality of selectable trip levels; a microprocessor controlling the circuit protection device; an OR-ing diode; and a power output connection location.

公开(公告)号：EP2868515B1

公开(公告)日：2018-10-17

申请号：EP12880172.7

申请日：2012-06-29

申请人： Mitsubishi Electric Corporation

发明人： SUGAHARA, Tetsuo ,  UEMURA, Takumi

IPC分类号： B60L9/28 ,  B60L3/00 ,  H02M7/12 ,  B60L9/00 ,  H02H3/24 ,  H02H7/125 ,  B60L7/14 ,  H02M7/48 ,  B60L3/04 ,  H02M1/32

CPC分类号： B60L3/04 ,  B60L3/00 ,  B60L7/14 ,  B60L9/005 ,  B60L9/28 ,  B60L2200/26 ,  B60L2210/20 ,  B60L2210/30 ,  B60L2210/40 ,  H02M1/32 ,  H02M7/48 ,  Y02T10/7241 ,  Y02T10/725

摘要： To improve power failure detection accuracy, while increasing power failure detection sensitivity as compared to that in conventional techniques, in a controller of an AC electric vehicle having a power failure detection function in an overhead contact line. The controller includes a first specific-frequency-current computation unit 14a that extracts a current component corresponding to a first specific frequency set value Fset1 from a main-transformer output current IS and outputs the current component as a first specific-frequency current I1, a subtractor 16 that subtracts the first specific-frequency current I1 from the main-transformer output current IS and outputs a subtraction result as a current deviation DI1, a second specific-frequency-current computation unit 15a that extracts a current component corresponding to a second specific frequency set value Fset2 from the current deviation DI1 and outputs the current component as a second specific-frequency current I2, and a power-failure detection unit 19a that compares the second specific-frequency current I2 with a predetermined power-failure detection-current set value Iset and outputs a power-failure detection signal when the second specific-frequency current I2 is larger than the power-failure detection-current set value Iset.