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WO/2020/261947A1 |
A protection device (30) connected to a DC power supply device (50) for outputting DC power to a DC electric circuit (12), the protection device (30) being provided with: a first conductor (31) connected to the high-potential-side output...
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WO/2020/253301A1 |
Disclosed in the present application is a relay protection redundant sampling detection method, comprising: acquiring sampled value 1 and sampled value 2 of a measured voltage/current after redundant sampling; and performing redundant sa...
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WO/2020/253989A1 |
A hybrid circuit interrupter can be used for medium voltage direct current applications, among other applications. The circuit breaker includes a vacuum circuit interrupter and an electronic power interrupter that are electrically connec...
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WO/2020/253047A1 |
A machine operation circuit, and a vacuum cleaner comprising same. The machine operation circuit comprises a power supply. The power supply comprises a power supply protection circuit for turning off the power supply according to a power...
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WO/2020/255440A1 |
A conventional ground fault direction relay device that determines a ground fault direction of its own line and performs a leakage alarm operation for the purpose of preventing an unnecessary movement (received movement) has a problem in...
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WO/2020/251246A1 |
The present disclosure may provide a blocking device of a DC system, the device comprising: a first semiconductor switching circuit including a first power semiconductor element and a first measurement device for measuring an electrical ...
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WO/2020/252118A1 |
A solid-state circuit breaker (SSCB) with galvanic isolation capability includes an electrical bus with line-side and load-side terminals and a solid-state device connected in series with a closeable air gap between the line-side and loa...
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WO/2020/248856A1 |
Disclosed are an overcurrent protection circuit, a method for driving an overcurrent protection circuit, and a display device. An overcurrent protection circuit (100) comprises a measurement circuit (110), a first protection subcircuit (...
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WO/2020/252121A1 |
An electrical distribution panel for controlling the distribution of electrical power to a plurality of loads includes a plurality of solid-state circuit breakers (SSCBs), each including a thermally conductive heatspreader and one or mor...
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WO/2020/251273A1 |
The present invention relates to a monitoring device and a solar system comprising same. A monitoring device and a solar system comprising same according to an embodiment of the present invention may comprise: a processor which receives ...
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WO/2020/239095A1 |
A power supply protection circuit and a power supply, related to the technical field of power supplies. The power supply protection circuit (100) comprises: a fuel gauge (U1) and a low-dropout linear voltage regulator (U2). The power sup...
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WO/2020/240081A1 |
It is an object to provide an electric vehicle charging monitoring device and an electric vehicle charging monitoring method. According to an embodiment, a device comprises: a current measurement device configured to measure an electrica...
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WO/2020/240097A1 |
The present invention relates to an electric line protection device (L), the device comprising, in a housing that it comprises, on the one hand, a plurality of coils (1, 2, 3) and a movable actuating element configured to be moved, under...
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WO/2020/238864A1 |
Disclosed in the present invention is an overvoltage protection circuit, the overvoltage protection circuit comprising: a switch circuit, the switch circuit respectively being electrically connected to a positive electrode input end and ...
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WO/2020/240576A1 |
The embodiments provide an electrical safety protection device and method for detecting faulty electrical circuits with fault identification, fault classification and alert system wherein the device is installed between the incoming powe...
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WO/2020/240811A1 |
In the present invention, one or more region boundary points are provided in a conductive wire path comprising two wires having a line voltage produced by a DC power supply, and at the region boundary points, when the line voltage contin...
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WO/2020/240271A1 |
The invention is a device that provides a smart accurate fault discrimination for every specific load and isolate it alone without affecting other loads that are in the same circuit of the faulty load,so it assure the continuity of elect...
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WO/2020/239454A1 |
The invention relates to an analogue circuit arrangement (1) for variably setting a voltage Uout within defined voltage limits, comprising a non-inverting adder (10) having a positive input (11), wherein a voltage divider (20) comprising...
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WO/2020/234064A1 |
The invention relates to a system (10) comprising at least two loads (14) which are connected to a common feed line (12) and can be switched off selectively and to the use of at least one interrupter switching element (22) with an extern...
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WO/2020/233937A1 |
The invention relates to a device for controlling the current of an actuator (10). The device comprises at least one control device (100, 200) having a first terminal (110, 210), a first switch (114, 124), a second terminal (120, 220) an...
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WO/2020/234134A1 |
The invention relates to a method for connecting a capacitive load assembly (10) to a DC grid (1). The load assembly (10) can be connected to a supply potential of the DC grid (1) by a control unit (20) via a controllable switch element ...
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WO/2020/234136A1 |
The invention relates to an overcurrent protection device for protecting a load (11, 12; 13, 14) arranged in a DC grid (1). The load (11, 12; 13, 14) is coupled to a supply busbar (10V), which is connected or can be connected to a supply...
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WO/2020/234261A1 |
The invention relates to a circuit arrangement (10) for supplying power to road vehicles (12), having an integral high-voltage system (26) to which at least one electrical component (34, 36) capable of providing a supply is connected, wh...
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WO/2020/228104A1 |
Disclosed is a self-check chip of a leakage protector, comprising: a power-on reset circuit, used for resetting the self-check chip after being powered on; a reference voltage module, used for providing reference voltage for a comparator...
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WO/2020/229239A1 |
The invention relates to a system for protecting an electrical source or an electrical load, having a module comprising an input and an output, and an electronic safety device for the load that can be connected to the source. The module ...
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WO/2020/220525A1 |
Disclosed are an overcurrent protection circuit (100) and method, and a display apparatus (1000). The circuit comprises: a panel (10), wherein a first output end (201) of a logic board (20) is connected to a first input end (101) of the ...
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WO/2020/221590A1 |
The invention relates to a circuit breaker (14) with a main current path (16) which has a controllable first switching element (18) with a first control input (22) which is connected to a controllable second switching element (56) of a d...
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WO/2020/223348A1 |
A disconnector device including an isolator connected between a first terminal and to a second terminal, and a sleeve positioned around the isolator and moveable between an un-extended position prior to the isolator operating and an exte...
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WO/2020/218443A1 |
A current leakage determination device (70) comprises: a capacitor (71) having a first end connected to either a positive electrode or a negative electrode of a battery (20); a sensing resistor (72) connected to a second end of the capac...
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WO/2020/215127A1 |
A short-circuit mitigation device for use in an electrolytic cell (101) is disclosed. The device comprises a switch (302) connected in parallel with a damping load (502). The switch is disposed between a contact (102) and an electrode (1...
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WO/2020/215163A1 |
Arc fault current interrupter electrical devices and systems. An example is an electrical device comprising: a contact configured for electrical connection to a power line; at least one sensor to detect at least voltage signals indicativ...
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WO/2020/216486A1 |
The invention relates to a disconnector switch which is designed to enable bidiretional clamping, comprising a first current path (56) and a second current path (58), a first disconnector switch element group and a second disconnector sw...
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WO/2020/218844A1 |
The present invention relates to a piezoelectric energy harvesting secondary battery. The present invention comprises: a first positive electrode part in which a positive electrode active material is applied on a conductive network forme...
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WO/2020/213183A1 |
An uninterruptible power supply device that comprises an input line into which alternating-current power is inputted from an alternating-current power supply that has a grounded neutral point, a converter that converts the alternating-cu...
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WO/2020/212021A1 |
The invention relates to a method (26) for detecting a current, caused by a fault, in a main current path (4) which has a first coil (10) which is inductively coupled with a second coil (12). An electric voltage is applied at the second ...
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WO/2020/212216A1 |
A residual current device (for low-voltage applications characterized in that it comprises: - a current sensor operatively couplable with at least a line conductor of an electric line, said current sensor including a saturable magnetic c...
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WO/2020/210204A1 |
A power converter with ground fault protection (PCGFP circuit 100) circuit includes an input stage (101), a first voltage converter (104), and an output stage (103). The input stage is connected to a power bus to receive an input direct ...
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WO/2020/207730A1 |
The invention relates to a method for locating an earth fault in a DC network (1), to which multiple load zones (3, 5) can be connected, wherein each load zone (3, 5) has two symmetrically earthed load zone lines (31, 32). In the method,...
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WO/2020/207729A1 |
The invention relates to a method for detecting a ground fault in a load zone (3) that can be connected to a direct-current network (1), the load zone having a first load zone line (31) which can be connected to a first main line (7) of ...
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WO/2020/209242A1 |
Provided is a device for detecting or monitoring an earth-fault current of a power circuit. The device is provided with a zero-phase current measuring unit, a phase difference identifying unit, an initial value holding unit, and a phase ...
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WO/2020/209523A1 |
An example of the present invention provides a protective relay inspection device including: a connection unit connected to a protective relay; and an inspection unit which, upon receiving a relay setting-providing signal including relay...
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WO/2020/204807A1 |
The invention relates to a circuit breaker for an electrical circuit. The circuit breaker (100) is arranged between a power supply (302) and a load (304) and comprising a first circuit breaker (102) coupled in series with a second circui...
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WO/2020/200496A1 |
The invention relates to an electric grid (1000), comprising feed-ins (1010; 1011; 1012; 1013; 1014; 1015), loads (1050; 1051; 1052; 1053; 1054; 1055; 1056; 1057), and a distribution grid (2000) which is arranged therebetween and compris...
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WO/2020/200492A1 |
The invention relates to a device (100) for opening or closing a DC circuit with at least one busbar (200), comprising: - an electric switch (110) for opening or closing the DC circuit, - a fault current detector (120), - a trigger unit ...
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WO/2020/204499A1 |
Disclosed is a voltage protection circuit for preventing power amplifier burnout in an electronic device. The electronic device includes a power amplifier (PA) configured to amplify a transmission signal, a switch configured to set a pat...
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WO/2020/200495A1 |
The invention relates to an electric grid (1000), comprising feed-ins (1010... 1013), loads (1050... 1055), and a distribution grid (2000) which is arranged therebetween and comprises at least one busbar (200) and at least one device (20...
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WO/2020/200494A1 |
The invention relates to an electric grid (1000) which is equipped with feed-ins (1010... 1013), loads (1050... 1053), a distribution grid (2000) arranged therebetween, at least one semiconductor switch (2010, 2011), and at least one ele...
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WO/2020/201198A1 |
The invention relates to a method for operating an electronic circuit arrangement (1) for electrical current limiting in a potentially explosive area, which comprises at least one electrical consumer (20), which is supplied with electric...
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WO/2020/200493A1 |
The invention relates to a method for coordinating a distribution grid of different levels of electromechanical switches and automatically electrically closable devices in a DC circuit, wherein the distribution grid is arranged between f...
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WO/2020/204806A1 |
The invention relates to a circuit breaker for an electrical circuit. The circuit breaker (100) is arranged between a power supply (302) and a load (304), wherein the circuit breaker (100) comprises control means (104) configured to swit...
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