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WO/2021/246964A1 |
This invention relates to a bypass device for replacing a meter without supply interruption to a customer load. The bypass device comprises a first and a second miniature circuit breaker (MCB) switches; a first pair of permanent magnetic...
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WO/2021/246044A1 |
The present invention suppresses power loss of a switching device. This switching device circuit (20) is used in a switching device (10). The switching device (10) comprises a first path (11) and a second path (12). The first path (11) i...
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WO/2021/246225A1 |
This electric leakage detection device (20) comprises: measurement units (21, 22) which are configured so that a resistor is selectively connectable between the reference potential (GND) and one among a positive electrode-side power supp...
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WO/2021/241684A1 |
A protective circuit (1A) is provided with: a protective element (10A); a plurality of secondary battery cells (20), (20), ...; an external positive electrode terminal (30a) and an external negative electrode terminal (30b); an auxiliary...
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WO/2021/239852A1 |
An electrical safety device (10), wherein the electrical safety device is configured to provide electrical energy from an electrical network via input terminals to at least one electrical consumer device connected to output terminals (44...
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WO/2021/239173A1 |
Electrical circuit arrangement comprising an inverter (4), a driver circuit (5) and a protective circuit (6), wherein the inverter (4) comprises a plurality of inverter switching elements (9) each having a drive connection (13, 14), wher...
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WO/2021/243116A1 |
A circuit interrupter device for selectively connecting a source of AC power from a line side to a load side of the circuit interrupter device includes a controller powered from a source of AC power from a line side. The controller initi...
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WO/2021/240220A1 |
The invention is a device that provides a smart accurate fault discrimination (either inner or outer leakage current, overload, over current and short circuit ) for every specific load of all types (either resistive, inductive, capacitiv...
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WO/2021/234789A1 |
A power supply system that supplies power to a load, wherein: only one device having a high resistance neutral point between a power supply line and the earth is provided; the device functions as an earth-fault over-voltage detection-typ...
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WO/2021/232152A1 |
A system and method for protection of an electrical grid. A respective one of the substations of the system including: a first directional protective relay to generate a signal operating on the electrical power line between the respectiv...
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WO/2021/235607A1 |
The present technology relates to a multi-circuit direct current breaking system and method. According to an embodiment of this technology, there are advantages of being capable of detecting a fault and primarily limiting the size of a f...
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WO/2021/237142A1 |
Certain aspects of the present disclosure generally relate to methods and apparatus for providing overvoltage protection for circuitry coupled to connector ports, such as USB-C ports. One example circuit for overvoltage protection betwee...
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WO/2021/234788A1 |
This power feeding system feeds power from a power supply unit to a load through a feeder line and is provided with: a protection device that operates by a current greater than or equal to a predetermined current; a monitoring unit for m...
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WO/2021/234867A1 |
A charging/discharging system (1) has a ground fault detection circuit (3) for checking whether a power cable (82) for connecting a storage battery (84) to the charging/discharging system (1) is insulated with respect to the ground. The ...
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WO/2021/236407A1 |
An apparatus for an electrical control assembly having at least one control member that is electrically connected to an electrical component, the at least one control member supported by an attachment assembly, which is disposed in a cav...
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WO/2021/232444A1 |
A charging protection circuit for a juicer, relating to the field of juicer charging circuits. The charging protection circuit comprises: a protection circuit, a charging circuit, and a rechargeable battery. By adding a certain protectio...
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WO/2021/232286A1 |
An electronic device includes a first group III nitride transistor and an over current protection circuit (OCP). The OCP circuit includes an input device and a detection device. The input device is configured to receive a control signal ...
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WO/2021/236174A1 |
Operating an electrical load controller includes, in one aspect, detecting zero-crossings of an AC waveform, determining periods each corresponding to a full cycle of the AC waveform, determining a frequency of the AC waveform based on t...
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WO/2021/229487A1 |
The present invention discloses a system (100) and a method for protecting an electric power distribution system integrated with a hybrid machine-learning model (HMLM). The system comprising a cloud/ communication network (103), a plural...
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WO/2021/230065A1 |
In this power feed control device (10), drive circuits (D1, D2) individually switch respective FETs (31, 32) on or off to control power feed to loads (E1, E2). In a state in which a connection destination of a fuse element (F1) is the FE...
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WO/2021/228669A1 |
The invention relates to a surge detector comprising a transformer comprising a primary winding arranged to receive a fraction of a surge current and a secondary winding magnetically coupled to the primary winding and arranged to output ...
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WO/2021/225280A1 |
The present invention relates to a semiconductor circuit breaker and, more specifically, to a semiconductor circuit breaker having a detachable interface module. The semiconductor circuit breaker according to an embodiment of the present...
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WO/2021/219799A1 |
The invention relates to a vehicle circuit assembly (1) for supplying an electric load (2) with a vehicle on-board voltage (UFB) in order to detect an overload, said electric load (2) having a specifiable nominal power. The vehicle circu...
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WO/2021/222162A1 |
A fault detection system for a system having a single DC input and a plurality of A/C loads such as an electric or hybrid electric vehicle. A plurality of inverters convert DC to 3 -phase A/C and supply A/C power to a corresponding indiv...
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WO/2021/221461A1 |
An electric shock and fire prevention device according to the present invention comprises: two or more power lines insulated from the ground with a resistance value equal to or greater than a predetermined ground resistance value; and on...
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WO/2021/213728A1 |
The invention relates to a two-stage actuation of a semiconductor switch. In a first phase, the semiconductor switch is only partially closed. During this first phase, the electrical current through the semiconductor switch is monitored ...
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WO/2021/215138A1 |
This power supply control device (10) controls the supply of power from a DC power source (11) to a load (12) by switching a power supply FET (20) on or off.A current adjustment circuit (25) adjusts a current flowing through a resistance...
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WO/2021/207880A1 |
A short circuit protection apparatus, a short circuit protection method, and a photovoltaic power generation system, relating to the technical field of photovoltaic power generation. The short circuit protection apparatus (200) comprises...
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WO/2021/209180A1 |
The present subject matter describes fault detection during power swing in a power transmission system. Voltage and current measurements are obtained for each phase at a terminal of the power transmission system. Based on measurements ob...
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WO/2021/210319A1 |
A power feeding control device (10) controls power feeding by switching on or off an FET (20). When current flowing via the FET (20) rises, the rising current flows via a resistor circuit (25). A drive circuit (23) makes a notification w...
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WO/2021/211639A1 |
With the fasting growth of renewable energy resources and DC supplied loads, DC electrical systems have been increasingly received attentions all over the world. DC breaker systems play a key role in protection systems for disconnecting ...
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WO/2021/209650A1 |
The invention relates to a power supply circuit, a safety device and a photovoltaic facility. The circuit comprises two terminals (2, 3) for the in-line connection thereof to a DC photovoltaic supply line (4), with two branches (5, 6) be...
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WO/2021/206911A1 |
A method (80) is provided for operating an inverter (49) of an inverter-based power resource (32) providing electric power to a grid (34) through one or more transformers 938). The method (80) includes measuring (82) voltages associated ...
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WO/2021/205801A1 |
The present invention suppresses the rise of device cost in a DC power distribution system capable of disconnecting, from an output path, a power distribution line in which a ground fault accident has occurred.　This DC power distributi...
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WO/2021/204110A1 |
The invention provides an over-current protection system. The over-current protection system includes a sensing device, a comparator, a first transistor, and a second transistor. The sensing device is adapted to sense a current flowing t...
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WO/2021/196399A1 |
A protective device (300) and a power distribution box having the protective device (300). The protective device (300) comprises: a signal detection circuit (310) for detecting a first voltage between a common ground connection point and...
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WO/2021/202069A1 |
A laser system comprising high voltage AC-to-DC power converter and one or more current sources coupled to the high voltage AC-to-DC power converter without a DC-to-DC converter between the one or more current sources and the AC-to-DC po...
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WO/2021/196755A1 |
The present application provides an interface overcurrent protection circuit, comprising a serial communication interface and a transient blocking unit. The transient blocking unit is connected in series between at least one power line i...
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WO/2021/199939A1 |
[Problem] In a vehicle power source device that is installed in a vehicle and that obtains a low-voltage power source from a high-voltage power source via a step-down means, to prevent electric shock to a human body without using an insu...
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WO/2021/198813A1 |
The present invention discloses a self-powered lED (103) for a pole-mounted auto-recloser (104) connected to an electric line (102). The lED comprises a mam control module (202) and a lockout indication module (203). The main control mod...
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WO/2021/194156A1 |
The present invention relates to an apparatus for prevention of electric leakage in the event of flooding for fire prevention and safety, and a method for protection against electric leakage and electric shock using same. More particular...
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WO/2021/191088A1 |
A motor-protective circuit breaker (10) comprising a circuit breaker unit (100), a trip unit (102), measurement means (106) switched between the trip unit (102) and motor contacts (T1, T2, T3) provided for performing one or more measurem...
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WO/2021/191490A1 |
The invention relates to a method for determining the distance to a fault location of a power line to be protected in an electric power system, the method comprising: configuring the power line to be protected into a plurality of segment...
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WO/2021/192898A1 |
This current control device is provided with a constant current circuit (30) and a current adjustment device (31). The current adjustment device (31) applies a voltage to the constant current circuit (30). The constant current circuit (3...
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WO/2021/185518A1 |
The invention relates to a protective device (100) for an electronic component (30) connected to an interface (200), comprising a compensation element (31) connected in series with the electronic component (30), wherein the compensation ...
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WO/2021/188284A1 |
A system may include an output driving stage comprising a first switch configured to selectively open and close an electrical path between a first supply voltage and an output terminal of the output driving stage and a second switch conf...
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WO/2021/185503A1 |
The invention relates to a protective device (100) for an electronic component (30) connected to an electrical interface (200), comprising: a detection device (10, 20) for detecting electrical voltage and/or electrical current at the ele...
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WO/2021/188937A1 |
Embodiments provide an Energy Reduction Maintenance Setting (ERMS) key that includes a data connector configured to communicatively couple to a data port of a target device. The ERMS key further includes an illumination device and an act...
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WO/2021/185088A1 |
Provided by the present invention is a current overload protection apparatus. The apparatus comprises a current measuring device and a control module; the current measuring device is used to measure a current value on a current path; the...
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WO/2021/181404A1 |
A relay assembly (104) connecting a power source (101) to an electronic component (102) in a high voltage system (100). The relay assembly (104) comprises a first relay unit (105), a second relay unit (106) positioned perpendicular to th...
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