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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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WO/2020/193942A1 |
This invention is a unique way of electronically measuring an open PEN situation in a multi-phase system without reference to mother earth. If the floating voltage becomes dangerous, the device disconnects the circuit, avoiding a potenti...
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WO/2020/198561A1 |
Unique systems, methods, techniques and apparatuses of a distribution system are disclosed. One exemplary embodiment is an alternating current (AC) distribution system including a first substation including a first transformer and a prot...
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WO/2020/193466A1 |
A power electronics assembly for a mobile application includes a first power electronics component selectively coupled to a high source on a first side and coupled to a high voltage battery on a second side, a second power electronics co...
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WO/2020/193539A1 |
The invention relates to an electrical energy supply device for supplying electrical energy to electrical components from an energy source, the energy supply device having at least one program memory with a computer program stored therei...
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WO/2020/196177A1 |
This protection circuit 120 of a power storage element comprises: a cut-off switch 55A for interrupting electric current in the power storage element; a drive circuit 150A for driving the cut-off switch; a power-supply switch 143A dispos...
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WO/2020/193282A1 |
A circuit arrangement for monitoring a signal (Ik) formed by alternating voltage comprises a comparator (8), to which the signal (Ik) formed by alternating voltage, or a signal obtained therefrom, can be supplied and which is configured ...
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WO/2020/193672A1 |
The present invention relates to an open circuit diagnosis apparatus for a motor drive circuit, the open circuit diagnosis apparatus comprising: a Miller plateau detection unit which detects whether there is a Miller plateau region in a ...
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WO/2020/198565A1 |
The present disclosure relates generally to medium voltage alternating current (MV AC) distribution networks. Isolating a fault in a feeder line of an MV AC distribution network may cause a healthy portion of a feeder line to be disconne...
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WO/2020/196465A1 |
This protection system includes a first positive potential terminal, a second positive potential terminal, a first relay which is opened or closed by a first contacting portion and a second contacting portion coming into contact with or ...
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WO/2020/198014A1 |
Apparatus for detecting electrical fault includes a voltage monitor provided at each of the distribution circuits for monitoring a voltage in a corresponding distribution circuit, a controller in communication with each of the voltage mo...
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WO/2020/194342A1 |
The present subject matter discloses a high voltage protection system for saddle type vehicle in order to detect the short circuiting of any wire. The present subject matter specifically provides three different modules that is high volt...
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WO/2020/190290A1 |
A direct current (DC) circuit breaker includes a breaker assembly having an input portion and an output portion. The breaker assembly also includes a first conductive path extending between the input portion and the output portion, where...
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WO/2020/186652A1 |
A novel direct current circuit breaker relating to the technical field of direct current power transmission. The novel direct current circuit breaker comprises a main branch and a transfer branch connected in parallel to the main branch,...
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WO/2020/189013A1 |
The present invention achieves both planned maintenance when an electrical leakage is gradually increasing, and early restoration when a sudden electrical leakage has occurred, without using an ELCB for each individual apparatus. An elec...
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WO/2020/191343A1 |
Aspects of the disclosure provide for a circuit (300). In some examples, the circuit includes a first current source (302) having a terminal coupled to a first node (314) and a second terminal, a first switch (306) coupled between the se...
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WO/2020/187608A1 |
The invention relates to a method for locating a ground fault in a DC system (1) to which a plurality of load zones (3, 4, 5) can be connected. The method comprises: specifying a time window and, after the ground fault is detected, assig...
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WO/2020/189220A1 |
This in-vehicle power supply device comprises: a lead storage battery (11) and a lithium ion storage battery (12) that are connected in parallel to a rotating electric machine unit (14), respectively; and a first switch (SW1) that is pro...
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WO/2020/182426A1 |
The present invention relates to a short circuit current detection device for a medium voltage or high voltage switchgear. The short circuit detection device comprises a reed contact (20), and a holder (100). The holder is configured to ...
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WO/2020/182286A1 |
A device, a method and a system for monitoring an electrical connection status of a disconnector device (110). The disconnector device (110) being connectable to pole-mounted equipment in a power distribution or transmission grid (200), ...
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WO/2020/183083A1 |
Electrical installation comprising a monitoring module (38) interposed between a sensor (40) connected to a measurement cable (20) and first (22) and second (24) cables for supplying the sensor (40) with power. The monitoring module (38)...
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WO/2020/183084A1 |
The invention relates to an electrical installation comprising a monitoring module (122) positioned between a sensor (40) connected to a measurement cable (20) and first (22) and second (24) supply cables for the sensor (40). The monitor...
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WO/2020/178032A1 |
The invention relates to a hybrid circuit breaker for interrupting a current in an electrical circuit line, the hybrid circuit breaker comprising: - an input terminal for connection to a power line and an output terminal for connection t...
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WO/2020/178006A1 |
The invention relates to a protection method of an electrical distribution and/or transmission network comprising three lines or phases and a neutral or ground line against short-circuits with current injection by at least one electric g...
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