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WO/2020/167950A9 |
The present disclosure pertains to detection of abnormal, risky, or abberant conditions in a power distribution network and to corresponding trip signals being used to trip open devices such as reclosers upstream of where the abnormal co...
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WO/2021/003486A1 |
A ratio metric (RM) approach to providing the current sensing function of service currents to smart metering applications results in an RM current sensor assembly and RM differential current sensor assembly that can replace prior art sen...
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WO/2021/000738A1 |
Disclosed are a direct-current transmission line protection method and system based on pure current characteristics. The direct-current transmission line protection method based on pure current characteristics comprises: collecting, at a...
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WO/2021/000819A1 |
The present invention relates to a battery management circuit, comprising a signal extraction unit, a clock capture unit, a voltage-controlled oscillator, and a voltage sampling unit. The signal extraction unit is suitable for extracting...
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WO/2020/262754A1 |
The present invention relates to a bidirectional-direct current power cutoff control device of arc accident leakage current detection type, comprising: a bidirectional switch unit provided between a direct current power source and a load...
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WO/2020/260636A1 |
Examples of operating an Intelligent Electronic Device (IED) during power swings, are described. In an example, voltage measurements for a phase is received and sampled. Root mean square (RMS) values of the voltage samples is calculated ...
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WO/2020/263072A1 |
The present invention discloses a device for the measurement of bi-directional electrical power consumption with sensor monitoring and neighbourhood safety functions, comprising the bi-directional measurement device, wireless WIFI or cel...
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WO/2020/257958A1 |
A glitch signal detection circuit, a security chip, and an electronic device. The glitch signal detection circuit (100) comprises a voltage sampling module (210). The voltage sampling module (210) comprises a first metal oxide semiconduc...
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WO/2020/257959A1 |
Provided are a glitch signal detection circuit, a security chip, and an electronic apparatus. The glitch signal detection circuit comprises: a latch and a signal output module. A first input terminal of the latch is connected to a supply...
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WO/2020/261639A1 |
This electrical current measurement system is configured to measure alternating current that flows through a conductor and that has a frequency within a measurement range. The electrical current measurement system comprises: a current se...
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WO/2020/259204A1 |
Provided in the present invention are a zero crossing point signal output method and apparatus and a power line data sending method and device. The zero crossing point signal output method comprises: continuously receiving zero crossing ...
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WO/2020/260198A1 |
The invention is directed to electrical load grouping based on measurements of an electrical parameter at electrical load sensors (120A, 120B). An electrical load grouping device (110) is configured for receiving a changed value of the e...
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WO/2020/263073A1 |
The present invention describes a two-way device for measuring electricity consumption, with an anti-theft system for monitoring an alternative energy source, the device being formed by: a two-way meter connected to the Internet via a wi...
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WO/2020/255854A1 |
A signal detection circuit for detecting a signal subject to detection, which is a signal from a main terminal of a switching element (2), by means of a comparison with a reference signal, the signal detection circuit being provided with...
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WO/2020/255853A1 |
This signal detection circuit is provided with: a first capacitor (C1), one terminal of which is connected to one main terminal of a switching element (2); a second capacitor (C2), one terminal of which is connected to the other main ter...
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WO/2020/256221A1 |
The present invention relates to a surge arrester-resistive leakage current detection device and detection method, which can measure only the leakage current of a surge arrester without measuring a voltage so as to calculate a resistive ...
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WO/2020/253890A2 |
A long-term operation evaluation apparatus for a transformer oil pump and a method. An oil pump inlet connects to an outlet of an oil tank by means of an oil pump pipeline, and an oil pump outlet is connected to an inlet of the oil tank ...
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WO/2020/252514A1 |
There is disclosed a method of monitoring the functionality of individual irradiation emitters within a UVC irradiation disinfecting device comprising: supplying a constant current supply to at least one irradiation emitter; sensing the ...
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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/2020/248856A1 |
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/2020/218750A3 |
The present invention provides an outlet device having a standby power blocking function, and an operation method thereof. The outlet device comprises: a current detection unit for detecting a load current inside an outlet; and a control...
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WO/2020/215163A4 |
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/2020/238494A1 |
Disclosed are a railway vehicle ultrahigh voltage overcurrent fault detection apparatus and method. The apparatus comprises: two pantographs, wherein each pantograph is correspondingly connected to a current sensor and a main transformer...
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WO/2020/238090A1 |
Provided is a DC power supply smart integrated monitoring instrument, comprising a signal acquisition circuit, a central processing unit, a human-computer interface, and a storage unit. The signal acquisition circuit is connected to the ...
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WO/2020/241834A1 |
The present invention provides a power measurement device with high measurement precision that measures power supplied through a conduction path in a state of non-contact with the conduction path. A power measurement device (1) is provid...
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WO/2020/242137A1 |
The present invention relates to an apparatus and method for detecting a defect in a battery pack and, more specifically, to an apparatus and method for detecting a defect in a capacitor provided inside a battery pack. According to the p...
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WO/2020/241548A1 |
This voltage measurement circuit 4 is provided with: each of a voltage dividing circuit 5A, a voltage dividing circuit 5B, and a voltage dividing circuit 5C which divide voltages of a power storage element 1A, a power storage element 1B,...
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WO/2020/235937A1 |
A sensor device is provided. The sensor device includes an energy harvester configured to generate electric energy, a monitoring circuit, a sensor, a communication circuit, and at least one processor configured to obtain information indi...
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WO/2020/232723A1 |
A current sensing module and a current sensing structure thereof. The current sensing structure comprises an annular body portion (21), a first end portion (22), a second end portion (23), and a slot (24); the first end portion (22) is c...
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WO/2020/209595A3 |
An analysis device based on power consumption information about a treadmill is disclosed. The analysis device of the present invention comprises: a current sensor for sensing, in real time, a current generated by a treadmill when a tread...
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WO/2020/230753A1 |
A current measurement device that comprises: at least four triaxial magnetism sensors that are arranged to have prescribed positional relationships and such that the magnetism-sensing directions thereof are parallel to each other; and a ...
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WO/2020/226308A1 |
The present invention relates to an apparatus and a method for diagnosing an increase in the resistance of a battery cell lead part, and a method for diagnosing a battery cell, according to one embodiment of the present invention, compri...
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WO/2020/225337A1 |
The invention relates to a device for detecting electrical currents on or in the vicinity of electrical conductors that are part of a lightning current arrester, an interception rod or the like, the device comprising a plurality of reed ...
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WO/2020/225193A1 |
The invention relates to a method for detecting a direct current component in an inductive device, for example in a transformer or choke, comprising the following method steps using a computer: - Recording a oscillation signal, either of...
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WO/2020/222953A1 |
A motor control system for reducing or eliminating current ripple error during current sampling comprises a motor having a plurality of phase coils, a motor driver circuit having a plurality of switches coupled to the plurality of phase ...
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WO/2020/221830A1 |
Examples of a test switch unit (100, 300, 600, 900, 1200, 1500) for testing an IED are described. Each of the test switch units may be utilized for opening of a trip circuit, the shorting of a CT circuit and subsequently the isolation of...
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WO/2020/219100A1 |
A power meter includes a sampling circuit configured to initially make electrical measurements of a unit under test at a first sampling frequency. The power meter includes an adaptive circuit. The power meter includes an accumulator conf...
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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/2020/218750A2 |
The present invention provides an outlet device having a standby power blocking function, and an operation method thereof. The outlet device comprises: a current detection unit for detecting a load current inside an outlet; and a control...
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WO/2020/218826A1 |
A device for determining a differential voltage curve of a battery comprises: a constant current unit; a sensing unit for outputting a sensing signal indicating a voltage and current of the battery for each unit time; and a control unit ...
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WO/2020/213082A1 |
Provided is a power conversion device capable of facilitating assembly work. The power conversion device comprises: a pair of magnet portions which are in parallel with the energizing direction of a busbar and face each other so as to sa...
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WO/2020/213997A1 |
The present invention provides an active compensation device for actively compensating for a first current input in a common mode to each of at least two high current paths connected to a first device, the active compensation device comp...
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WO/2020/207575A1 |
A method for detecting low impedance condition at an output (15) of an electrical converter (10), a control unit (1000), a computer program product, and an electrical converter (10) are presented. The method comprises determining (110) a...
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WO/2020/209516A1 |
The present invention relates to an overcurrent protection inverter, and more particularly, to an inverter, which uses a leg-shunt resistor so as to detect an instantaneous maximum output current and an AD current, thereby performing an ...
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WO/2020/207563A1 |
A monitoring system (500) for remotely monitoring a state of pole-mounted equipment (110, 120) in a power distribution or transmission grid (200) is provided. The pole-mounted equipment (110, 120) comprises an indicator device (100) conf...
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WO/2020/209526A1 |
The present invention relates to a monitoring system for a plurality of power devices that are serially connected in a main circuit of a current transmission path, the monitoring system comprising: a first power device and a second power...
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WO/2020/208530A1 |
A quasi-resonant auto-tuning controller includes a zero-voltage crossing detection circuit and a valley tuning finite-state machine having a look-up table. The zero-voltage crossing detection circuit receives a reference voltage and rece...
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WO/2020/209164A1 |
According to the present invention, a first channel (1) includes a first driving switch (11) for supplying electric power to a first load (310) and a first detection switch (12) for detecting a current flowing through the first driving s...
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WO/2020/206469A1 |
A multifunction multitask apparatus for use in building inspections is disclosed. The apparatus comprises a portable case comprising a grippable handle, a mini-desk, lighting elements and a plurality of sensors for building structure ins...
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WO/2020/204813A1 |
This invention relates to a residential energy consumption monitoring system and a method for monitoring energy consumption of a residential premise. The system comprises a smart distribution board (DB) and at least one smart socket outl...
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