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Matches 1 - 50 out of 35,929

Document Document Title
WO/2018/011843A1
Provided are a grid stabilization system and a stabilization method in which the number of power generators that are disconnected is reduced in order to narrow down a blackout region when it is determined that the reliability of a state ...  
WO/2018/009992A1
The present invention relates to a method for protecting transformers against inner faults. In short, the method disclosed in the present invention is aimed at increasing the detection sensitivity of inner faults in devices, mainly power...  
WO/2018/009990A1
The present invention relates to a method for protecting transformers against internal faults. In summary, the method disclosed in the present invention is intended to increase the detection sensitivity of internal faults in equipment, p...  
WO/2018/011723A1
The invention relates to an improved surge protection device comprising a fast acting, self-restoring circuit breaker, preferably, along with surge arrestor/absorber to improve the protection and availability of the equipment which is in...  
WO/2018/007857A1
A method and system is provided for locating a fault in a mixed power transmission line. The method is implemented by an Intelligent Electronic Device (IED) of the mixed line. The IED detects a travelling wave from one or more signals re...  
WO/2018/006515A1
Main circuit grounding protection method for a direct-current electric transmission diesel locomotive. The method comprises: transmitting a signal DJ_IN of a grounding relay DJ and signals dI1-dIn of leakage current sensors S1-Sn to a mi...  
WO/2018/002479A1
The invention relates to a power electronics module (MOD) of a hybrid or electric vehicle electric traction system, comprising a casing (CAR) housing an element that is live when the said system is in operation, the said element being ac...  
WO/2018/002198A1
The invention relates to a semiconductor current cutoff device (2), comprising a circuit (C) having a first branch (4) including an energy absorbing member (6) and a second branch (8) including a semiconductor switch (10), the semiconduc...  
WO/2018/001848A1
The invention relates to a method for testing a multi-phase connection cable (100) which connects a bridge circuit (104) to an electric motor (102), the method comprising a switching step, a measuring step and a detecting step. In the sw...  
WO/2018/001665A1
The invention relates to a control device (16) for a motor vehicle (10), which comprises a first electrical connection (17) for receiving a first supply voltage (U1) of a first on-board electrical system (11) and a second electrical conn...  
WO/2018/005520A1
An electrical system includes an operation MEMS switch operable in on and off states to enable and disable current flow to a load and a fault interruption MEMS switch positioned in series with the operation MEMS switch. The fault interru...  
WO/2018/002501A1
A method for generating a short-circuit by a power supply device (1) comprising electrical components (8) for causing the triggering of a protection element (6) connected between a load (3) and said power supply device (1). In response t...  
WO/2018/001515A1
A multilevel converter for converting between AC and DC comprises a cell (HBA), which comprises an energy storage element (C), a first branch of series-connected switching units(S1, S2) in parallel with the energy storage element, each s...  
WO/2017/222333A1
Disclosed is a high-current PCB assembly comprising a small and low-priced current breaking apparatus capable of breaking the flow of high current without damaging semiconductor elements. The high-current PCB assembly comprising a curren...  
WO/2017/221697A1
A power supply control device (10) wherein a drive circuit (27) switches a semiconductor switch (20) on or off and thereby controls the supplying of power through the semiconductor switch (20). A current circuit (21) draws current from t...  
WO/2017/220443A1
A direct current circuit breaker with a positive supply line between a positive input terminal (+IN) and a positive output terminal (+OUT), and a negative supply line between a negative input terminal (-IN) and a negative output terminal...  
WO/2017/219491A1
A battery voltage protection circuit. When a battery voltage reaches two interval voltages of a voltage determination unit, a corresponding voltage determination is made, and a low-voltage determination switch (V1), a high-voltage determ...  
WO/2017/221493A1
In a DC power supply system configured by combining a plurality of DC electric circuits, when an arc accident occurred, it is difficult to specify the DC electric circuit in which the arc occurred. Therefore, the present invention provid...  
WO/2017/211586A1
The invention relates to a current distributor (3) for a vehicle, having an input (E) and a plurality of load channels (LK1, LK2, LKn) which connect the input (E) to a connected load (L1, L2, Ln) via a safety fuse (F1, F2, Fn) and a line...  
WO/2017/210806A1
The invention relates to the production of an electrical protection device that makes use of the operation of a fuse that is installed in the extension of the mesh of a coaxial cable. In this way, when the device is installed at the outp...  
WO/2017/212448A1
A power supply system for an a.c. resistive element (10) comprises a first input point for an a.c. mains power source (14) and a second input point for d.c. power derived from photovoltaic panels and/or wind generators (24). Switches (18...  
WO/2017/207994A1
This application relates to monitoring of electronic devices (100) and in particular to methods and apparatus for the detection and recording of an electrical overstress applied to a connector (101, 102) of the device. The apparatus desc...  
WO/2017/207959A1
This application relates to monitoring of electronic devices(100)and in particular to methods and apparatus for the detection and recording of an electrical overstress applied to a connector (101, 102) of the device. The apparatus descri...  
WO/2017/207031A1
The invention relates to an arcing fault recognition unit for an electric low-voltage circuit, comprising at least one current sensor for periodically ascertaining electric current values in the electric circuit, the current sensor being...  
WO/2017/207030A1
The invention relates to a fault-arc identification unit for a low-voltage electric circuit, having: at least one voltage sensor for the periodic determination of electric voltage values (un, un-1) of the electric circuit; and at least o...  
WO/2017/207535A1
The invention relates to an arc fault identification unit for an electrical three-phase alternating current circuit with three phase conductors and a neutral conductor, having - voltage sensors which are assigned to each phase conductor ...  
WO/2017/207032A1
The invention relates to an arcing fault recognition unit for an electric low-voltage circuit, comprising at least one voltage sensor for periodically ascertaining electric voltage values (un, un-1) in the electric circuit, the voltage s...  
WO/2017/202569A3
The invention relates to a primary-pulsed switching power supply (1) for converting an input voltage (Ue) into an output voltage (Ua), comprising at least: - a fuse (5) arranged in the circuit branch (2) on the primary side, which is des...  
WO/2017/203099A1
A method for detecting faults (4) in a three-phase electrical distribution network comprising determining a zero sequence current (21 C), a first phase current (21A) and a second phase current (21 B) at a location of the three-phase elec...  
WO/2017/201957A1
Disclosed are a protective device and method for a BMS power source loop, and an electric vehicle. The device comprises: a PTC thermistor (10), wherein the PTC thermistor is connected in series in a BMS power source loop; a controllable ...  
WO/2017/199328A1
Two or more earth leakage test signals having different phases are output to a detection resistor (4), and a detection voltage generated in the detection resistor (4) is loaded into a signal detection circuit (5) through an A/D conversio...  
WO/2017/197732A1
A digital power supply circuit and a liquid crystal driver device. The digital power supply circuit comprises: a control module (12), which comprises: an acquisition unit (13) used for acquiring the rate of change of a digital power supp...  
WO/2017/200747A1
Multiple relays are connected in parallel by including one or more semiconductor devices connected across the relay contacts. The semiconductor devices are triggered to conduct and shunt transient currents during the opening and closing ...  
WO/2017/200608A1
A current detector circuit includes a current sense amplifier, coupled to a sense resistor, to receive a pair of input voltages and to output a first indicator signal responsive to a sensed input voltage difference produced by a sensed c...  
WO/2017/200469A1
In a multi-phase power grid fed by a power source, earth fault (460) is located by means of a power supply source synchronized with the power grid, which is connected between a zero point of the grid and earth. In a fault current compens...  
WO/2017/198080A1
An arc-preventing fast-breaking surge protection apparatus, comprising an arc-preventing assembly formed by an elastic component (3) and an arc-preventing ejector (4), a voltage-sensitive assembly, a response switch assembly, a thermosen...  
WO/2017/199412A1
This circuit breaker, which trips upon detecting an overcurrent, comprises: a first current detection circuit for detecting a load current using a microcomputer on the basis of signals output by a current detection coil; a second current...  
WO/2017/199397A1
The testing device (100) for a direct-current circuit breaker comprises: an alternating-current power source (1) for generating a first test current to be supplied to the direct-current circuit breaker (5) to be tested; a voltage source ...  
WO/2017/201214A1
In described examples of a voltage regulator (300) having a regulated output voltage that droops down from a reference voltage (VDAC), an improvement includes generating a droop voltage portion of an under voltage protection threshold (I...  
WO/2017/196649A1
The invention relates to a novel approach for the protection of electrical circuits from ground faults and parallel and series arc faults in a fully solid-state circuit configuration. Solid-state circuits and methods of use are described...  
WO/2017/196292A1
A circuit breaker is referenced that has an indicator lamp that identifies a fault condition after power is interrupted to the circuit breaker. This solution uses light emitting diodes (LEDs) to indicate the trip condition. This solution...  
WO/2017/194867A1
The subject of the present invention is a differential protecting device that makes it possible to detect a fault current in an electrical apparatus, with a set of functional means (3, 3', 3", 3''') for measuring, processing, evaluating ...  
WO/2017/192106A1
A smart control system (1) for detecting plug-in or removal of electrical devices, detecting short circuit, sensing human contact to the conductor line and protecting human from electrical shocks, comprising microprocessor (A), switching...  
WO/2017/190975A1
The invention relates to a device for discharging at least one battery cell of a hand-held power tool, said device comprising a control unit, at least one sensor for measuring at least one measurement value, and at least one electrical l...  
WO/2017/190608A1
The present invention relates to a method and system for fault positioning and recovery of a voltage source converter. The method comprises: locking a converter station when it is detected that an alternating-current voltage contains a z...  
WO/2017/192133A1
The disclosed embodiments include a method to protect a downhole generator from overvoltage. In one embodiment, the method includes determining a speed of an alternator. The method also includes activating overvoltage protection mode if ...  
WO/2017/186475A1
The invention relates to a fuse system (1) for at least one load (V1, V2, Vn) of a vehicle, having a fuse apparatus (10) that comprises at least one electronic fuse (S1, S2, Sn) for the at least one load (V1, V2, Vn) and an evaluation an...  
WO/2017/186476A1
The invention relates to an electronic fuse (10) comprising a semiconductor switch (T) which supplies a load impedance (3) with a load current (iL) in a conductive state and which switches off the load current (iL) in a blocking state; a...  
WO/2017/187785A1
In order both to accommodate instantaneous current as well as overcurrent protection in accordance with the load, an overcurrent protection circuit 71 has: a threshold value generation unit 130 that, in accordance with a threshold value ...  
WO/2017/189418A1
An elevator door operator may comprise a drive connected to a motor for opening and closing elevator doors. The drive may include a power supply control switch, a rectifier for converting AC from a power source to DC, a DC bus with a cap...  

Matches 1 - 50 out of 35,929