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WO/2022/158989A1 |
A method of detecting a high-voltage power line fault in a three-phase power supply system, comprising acquiring voltage data from the low-voltage side of a three-phase distribution transformer; processing the voltage data to determine a...
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WO/2022/148074A1 |
A method for solving for converter valve states and valve currents based on valve-side current timing characteristics. The process is as follows: acquiring valve-side three-phase alternating currents, direct currents, and converter valve...
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WO/2022/136414A1 |
The invention relates to a method for protecting an electrical low-voltage circuit for a protective switching device, in which method: a mechanical break contact unit (MK) is connected in series with an electronic interrupter (EU). The m...
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WO/2022/135799A1 |
The invention relates to a circuit breaker device (SG) for interrupting an electrical low-voltage circuit when current limit values or current time limit values are exceeded, having a housing with terminals (Ne, Na, Le, La) for conductor...
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WO/2022/126176A1 |
A system for locating defects on a single-wire earth-return (SWER) network can include a network, a plurality of data collection units, and a server communicably coupled to the plurality of data collection units via the network. Each dat...
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WO/2022/129554A1 |
The invention relates to an overload protection method for a local power source (10) supplying power to a home energy grid (200), comprising measuring voltage variations occurring in a circuit connected between the AC side of a power inv...
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WO/2022/121885A1 |
Disclosed in the present invention is a lightning arrester, comprising a resistor and an insulating sleeve sleeved outside the resistor. The resistor is made of a zinc oxide mixture. The zinc oxide mixture has characteristics such as exc...
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WO/2022/122441A1 |
The invention relates to a protection device (20) for monitoring a power supply grid (30, 70, 80), having a measured value detection device (21) for detecting measured values which specify the electrical state of the power supply grid (3...
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WO/2022/114463A1 |
According to an embodiment, provided is a direct current/direct current converter comprising: a first switch unit located between a direct current link capacitor and a bridge circuit unit; a second switch unit connected in parallel with ...
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WO/2022/105017A1 |
An arc flash hazard calculation method, an arc flash hazard reduction method, and a fault detection method. According to the arc flash hazard calculation method for a multi-source power supply system, a time-phased arc current calculatio...
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WO/2022/100185A1 |
A surge protector with an anti-falling structure, relating to the technical field of surge protectors, and comprising a plug-in module (2) and a base (1), the base (1) comprising external terminal connecting parts on two sides, a sliding...
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WO/2022/090648A1 |
Method for monitoring the operating state of a set of circuit breakers (D1-D8), comprising the steps of arranging, on the wall of each circuit breaker, a synchronous triaxial digital magnetometer (M1-M8) on a semiconductor chip, cyclical...
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WO/2022/077974A1 |
Provided are a circuit system, a control method of the circuit system, a controller and a non-transitory computer-readable storage medium, which relate to the technical field of electronic circuits. The circuit system comprises: a system...
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WO/2022/072570A1 |
A system and method for restoring power in a power distribution network. The network includes at least two power sources, at least one feeder and a plurality of switching devices positioned along the at least one feeder and being in comm...
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WO/2022/065031A1 |
This arc detection system (100) comprises an acquisition unit (11) and a determination unit (12). The acquisition unit (11) acquires the measurement result of current (I1) flowing through a feeding path (L1) to which power is supplied fr...
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WO/2022/066554A1 |
A method and apparatus for converting DC power to AC power. For example, apparatus for converting DC power to AC power comprises an input adapted to be coupled to a high-powered distributed generator having a maximum voltage at a first v...
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WO/2022/064010A1 |
A method for detecting a phenomenon in an electrical power network comprising at least one protection zone with at least two subzones. The method comprising measuring in the subzones of the protection zone at least one current signal act...
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WO/2022/055975A1 |
The systems and methods herein described isolating a circuit breaker panel for a building from a grid circuit during an event disrupting the grid circuit. In one aspect, a interrupt switch system comprises a housing configured to mate wi...
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WO/2022/051689A1 |
Series arcing in wiring is a potentially catastrophic situation that has proven to be difficult to detect reliably with existing methods. This invention allows for the quick and accurate detection of series arcing in an electrical circui...
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WO/2022/050494A1 |
Disclosed is an emergency power blocking system including a universal transmission unit. An emergency power blocking system, according to an embodiment of the present invention, comprises: a power blocking unit mounted on a power supply ...
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WO/2022/042199A1 |
The present application applies to the technical field of terminals, and provides an interface circuit, a protection method for same, and a terminal device. The interface circuit comprises: a switching unit, a power input terminal, a fir...
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WO/2022/041045A1 |
An anti-static protection system for Internet of Things communication and a protection method. The system comprises an acquisition and detection unit, a central control unit, a power management unit, a circuit protection unit, a wireless...
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WO/2022/037971A1 |
The invention relates to a switchgear (1) for medium and/or high voltages as well as to a method for data exchange in the switchgear, the switchgear comprising at least two switching units (2) and at least one data acquisition unit (3). ...
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WO/2022/032251A1 |
One or more examples relate, generally, to a programmable voltage lockout circuit (104) provided at an electronic device (102). Such a programmable voltage lockout circuit asserts a lockout of the electronic device at least partially res...
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WO/2022/023322A1 |
The invention relates to the field of electronic circuit breaker control units, particularly for Residual Current Devices, RCDs. The electronic circuit breaker control unit (100) comprises a first thyristor (162), configured for driving ...
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WO/2022/018234A1 |
A protection apparatus (1) for protection of an electrical load (9), said protection apparatus (1) comprising: at least one input terminal (2) adapted to receive a power supply voltage; at least one semiconductor power switch (5) connect...
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WO/2022/018704A1 |
A pre-assembled switchboard has a housing having a plurality of bus bars and a cable entrance for a plurality of sub-circuit cables and a sub-circuit termination block with conductor coupling elements configured for connection to the con...
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WO/2022/007232A1 |
The present invention provides a method for calculating steady-state fault current of a modular multilevel converter (MMC). The method comprises: calculating direct-current side critical resistance values RA/B, RB/C, and RC/D of the MMC ...
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WO/2021/260624A1 |
Methods and systems provide an indication that a loose connection and/or fault occurred in a breaker box or other electrical connecting device. The method includes calculating normal resistance for circuits within a breaker box when a cu...
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WO/2021/151909A9 |
There is provided mechanisms for time-synchronized communication of packets between a first substation (120a) and a second substation (120b) interconnected by a communication channel. Samples obtained within the second substation is prov...
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WO/2021/251739A1 |
Provided are an arc detection system and method capable of providing reliability and safety. The disclosed arc detection system comprises: a current sensing unit for sensing a current flowing in a line; and an arc detector for detecting ...
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WO/2021/244242A1 |
Disclosed is a transient voltage locking module for a power distribution terminal, comprising a power module, a voltage acquisition and comparison module, and a transient voltage state latch module electrically connected to each other. T...
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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/2021/229487A1 |
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/2021/227718A1 |
A frequency-selecting amplification detection circuit and a safety detection device. The circuit comprises a current sensor (10), an amplifier circuit (20), a first resonant circuit (31) and a comparison detection module (40) which are c...
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WO/2021/218534A1 |
The present invention provides an anti-tamper protection circuit, comprising a switch trigger port, a tamper signal transmission port, a power supply unit, and a signal output port. The switch trigger port is connected to a switch; the s...
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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/2021/208632A1 |
Provided are a rapid turnoff method, a photovoltaic assembly turnoff device, and a photovoltaic system. The rapid turnoff method comprises: after receiving a start signal, a photovoltaic assembly turnoff device controls itself to be turn...
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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/2021/202322A1 |
A fault tolerant interface includes a sensor and a safety control that are electrically connected to each other by a single wire. The sensor is configured to provide various signals to the safety control dependent on environmental parame...
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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/2021/181017A1 |
The invention relates to a vehicle (V) comprising: - a rechargeable battery (BR), - a base (ER), to which are fixedly connected a first socket (P1) which is suitable for recharging the battery (BR) with direct current and comprises two f...
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WO/2021/178784A1 |
An electrical meter including a housing including a socket interface operable to connect to a facility. The meter further including a sensor configured to sense a characteristic of the electrical meter. The meter further including a cont...
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WO/2021/174631A1 |
Disclosed are a power transmission line distance protection current transformer saturation identification method and system. According to the present invention, a distance protection locking criterion and a distance protection opening cr...
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WO/2021/168233A1 |
A method of monitoring electrical faults includes processing features of signals output by sensors of a circuit breaker about electrical properties of a circuit coupled with a load and transitioning between states of operation based on t...
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WO/2021/164934A1 |
A system includes a current transformer (110) including: a primary coil (108), and a secondary coil (109) including at least two taps (113_1, 113_N); a tap selection circuit (130); a current measurement apparatus (260) configured to prod...
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WO/2021/167599A1 |
A shoot-through protection circuit includes a current sensor providing a sensor signal connected to a comparator (230) input via at least a burden resistor (120). A switch protection circuit (250) including a protection input connected t...
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WO/2021/168265A1 |
A method of monitoring a circuit having load(s) includes receiving normal-mode data from circuit breakers operating in a normal mode, transforming the normal-mode data into first display data, providing the normal-mode display data to a ...
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WO/2021/160372A1 |
The invention relates to an arrangement for detecting arcs in a low-voltage circuit, said arrangement comprising: - at least one voltage sensor for periodically determining voltage values (um(t)) of the low-voltage circuit, - at least on...
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WO/2021/158809A1 |
An electrical grid system including a phase conductor, a neutral conductor, and a neutral-to-ground conductor configured to conduct current flow between the neutral conductor and a ground. The electrical grid system further includes a fa...
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