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WO/1990/000805A1 |
A circuit breaker auxiliary device is housed in its own separate enclosed container (20) and is accessible by a drive pin (13) through an opening (18) in the container mounting surface (11). A drive pin (13) is inserted into an opening (...
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WO/1988/003324A1 |
A circuit breaker (10) having a movable upper blade (16) with a free floating pivot end (46). The operating mechanism (34) is solidly connected to the upper blade (16). The contact force is generated by a contact spring (44) which exerts...
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WO/1987/001237A1 |
An electric circuit breaker capable of being opened and closed from a remote location. The circuit breaker includes a stationary contact (14), a movable contact (16) mounted on a carrier (18) and a trip mechanism (40) that trips the circ...
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WO/1986/002197A1 |
A bimetallic trigger for a switch, for example a motor protection switch with a trigger bridge (10) and a differential bridge which can move in relation thereto, in which the ends of the bimetallic strips (17) lie between the two bridges...
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WO/1986/001936A1 |
In order to prevent an electrical tool, for example a hand-drill, a mowing machine or similar, from starting up again by itself after an interruption in the power supply or a line fault, owing to the fact that it has not been switched of...
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WO/1985/002724A1 |
New device for protecting human life and property against electrical shock and more specifically to a shock hazard prevention system for disconnecting an electrical load from an electrical source when a shock hazard condition exists with...
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WO/1983/003160A1 |
To protect the operator of an electrically supplied apparatus in a damp room against an electric discharge, there is provided a protection device comprised of a probe formed by two conductors (44, 45; 46, 47) which cannot come in contact...
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WO/1981/001092A1 |
The device allows the control of the output cut off elements, such as contactors breakers, protection switches of motors or similar, and apparatus or installations. The computer is connected, through an analog-digital converter, to at le...
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WO/1979/000127A1 |
Defect current protection switch, in which the conductors (5) are associated to a core (6) of which the magnetic induction flux actuates, in case of defect, a tripping device. When a magnetic field produced by the defect current is super...
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WO/1979/000105A1 |
The lead (8) of a working current is associated to a core (3) of which the magnetic induction flux causes, in case of leakage of current, the operation of a circuit-breaker. In this case, an armature (4) of the breaker drops because of t...
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JP7487847B2 |
A diagnostic device (10) according to the present invention comprises: current detection units (14r, 14s, 14t) that measure current values of currents flowing in a circuit breaker; and a diagnostic unit (11) that diagnoses the cause of a...
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JP2024061946A |
An object of the present invention is to reduce the number of man-hours required for setting a path for transmitting electricity to an earth leakage interrupting board and an overcurrent tripping element. [Solution] An overcurrent trippi...
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JP7470930B2 |
To provide a circuit breaking device with a simple configuration capable of preventing a lid attached to cover a connection portion between an internal electric circuit of a breaking unit and an internal electric circuit of a detection u...
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JP7470928B2 |
To provide an arc determination device capable of improving the determination accuracy of arc generation.An arc determination device 1 includes a current detector 15, low pass filters 17, 21, and processing units 19, 23. The current dete...
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JP2024047298A |
An object of the present disclosure is to perform an earth leakage detection test without interrupting an electric circuit. [Solution] The earth leakage breaker A1 includes contacts 14A, 14B, and 14C inserted into electrical circuits 13A...
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JP7462274B2 |
To provide a circuit breaking device in which an operation of electrically connecting a power supply unit and an internal electric circuit in a detection unit can easily be performed.A circuit breaking device includes a breaking unit and...
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JP2024045961A |
[Problem] To obtain an earth leakage tripping device that can handle a wide range of power supply voltages without increasing the size of a tripping coil. [Solution] A ground leakage tripping device 60 detects a ground leakage in a tripp...
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JP2024513269A |
The present invention relates to an earth leakage breaker with a built-in trip module type circuit breaker, which is installed between a power source and a load line, and includes a trip module that interrupts the line and a CT that moni...
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JP2024033537A |
[Problem] To improve assembly efficiency. [Solution] A circuit breaker includes one or more main contacts, a switching mechanism that opens and closes the main contacts, a tripping device 6 that releases the switching mechanism and autom...
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JP7413975B2 |
To provide an overcurrent switch capable of having high precision and stable tripping operation characteristics.In a temperature-sensitive operation mechanism component which is an overcurrent switch 78 comprising a heater 86 connected t...
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JP7411921B2 |
The purpose of the present disclosure is to downsize a circuit breaker while providing a circuit board. A circuit breaker (1) is provided with a circuit board (6) and a body (5). The body (5) houses therein at least the circuit board (6)...
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JP2024002573A |
[assignment]To obtain a communication unit for a circuit breaker capable of outputting information indicating the open/closed state of the circuit breaker by wireless communication without using power from a power supply circuit that gen...
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JP7407532B2 |
To provide a circuit breaker that can be assembled more easily than a prior art.A bottom surface of a holding member 21 is provided with positioning protrusions 23, 23, etc. protruding downward, while an electronic circuit board 31 is pr...
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JP7400626B2 |
According to the present disclosure, a circuit breaker (100a) includes: a barrier part (11a) which is provided to cover at least a portion of an image current transformer (9); and a housing which is composed of a base (1) accommodating t...
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JP2023167700A |
To provide a current measuring device that can ensure reliability of a current measuring section.A current measuring device 40 includes a plurality of current measuring sections 27a to 27c and a self-diagnosis determining section 31c. Th...
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JP2023167147A |
To provide an insulation monitoring system which can appropriately monitor deterioration of insulation of a cable way.An insulation monitoring system 50 includes: a circuit breaker 2 including a switching contact 4 provided in a cable wa...
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JP2023545965A |
The device includes an electromechanical switching device having an open circuit state and a closed circuit state, and a path of least resistance having a path input and a path output, the switching device being between the input and the...
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JP7365638B2 |
To continue the operation of a processing unit even when a contact part is in an open state.A switch system 100 comprises: a primary side terminal 101 that is connected with an external power supply 200; a secondary side terminal 102 tha...
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JP2023146027A |
To provide a circuit breaker and the like that can easily update a software program for detecting abnormalities when a plurality of software programs are used.A circuit breaker 100 includes: a first detection unit 11 that detects a first...
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JP2023146024A |
To provide a shutoff system and the like that can accurately detect abnormalities related to electrical paths.A shutoff system 100 includes: an acquisition unit 22 that acquires a current value of current flowing in an electrical path be...
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JP7354926B2 |
To avoid an unnecessary breaking operation caused by a lightning surge current while ensuring human body protection with respect to electric leakage.The present invention relates to an earth leakage breaker comprising a leakage current d...
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JP2023136986A |
To provide a circuit breaker which, when a connection failure in a terminal portion is detected, displays the location and allows the location of the occurrence to be easily recognized.A circuit breaker includes overcurrent detection mea...
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JP7351052B2 |
A ground fault current interrupter circuit includes a plurality of comparators, threshold generation circuitry, and a plurality of timer circuits. Each of the comparators is configured to compare a threshold voltage to a signal represent...
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JP3243852U |
The present invention provides a protective pressure plate voltage detection circuit and a protective cabinet equipped with the same. [Solution] This protective pressure plate voltage detection circuit includes a first voltage detection ...
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JP2023127417A |
To also break a power supply side terminal from a power supply even in which a connection failure occurs in a power supply side terminal.A circuit breaker comprises: overcurrent detection means of detecting an overcurrent of a cable way ...
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JP7325044B2 |
To improve the operation accuracy of the pull-out part.A switch system 100 includes a contact point C1, a pull-out part 14, a phase detection unit 131, and a processing unit 12. The contact point C1 is provided to a pair of electric circ...
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JP7321289B2 |
An electronic circuit breaker (1) is provided with a load current characteristic calculation unit (17) and an output unit (20). The load current characteristic calculation unit (17) calculates short-time delay load current characteristic...
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JP2023529751A |
Compared to the prior art, the present invention has a range of 25.2 to 32 mm for the inner width of the through-opening of the shield (50). It relates to a sensor (100) that has a higher sensitivity to allow the monitoring circuit to be...
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JP7289100B2 |
The purpose of the present disclosure is to achieve minimization. This leakage protection device (1) is provided with a plurality of opening and closing units (2), a board (B1), a leakage detection unit (3), and a driving unit (4). The p...
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JP2023069547A |
To improve noise resistance of an abnormality detection device.A circuit breaker A1 comprises: a main contact point (fixing contact points 20A and 20B, and movable contacts 21A and 21B); a switch mechanism 4 that switches the main contac...
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JP2023064633A |
To provide a circuit breaker capable of improving the workability of assembly work.A circuit breaker A1 includes: one or more main contacts (fixed contacts 20A, 20B, movable contacts 21A, 21B); a switching mechanism 4 that opens and clos...
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JP7256872B2 |
The present disclosure relates to an earth leakage circuit breaker and a method for controlling the same. The earth leakage breaker includes a zero-phase current detection unit for detecting a zero-phase current generated in a zero curre...
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JP2023023625A |
To provide a connection failure detection circuit and a circuit breaker for detecting a poor connection even at voltage value where generated potential difference does not reach operating voltage of a photocoupler and unaffected by elect...
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JP2023504681A |
The present invention relates to a residual current circuit breaker RCCB (100) for an electrical circuit (300). The RCCB comprises a first switching device (106) and a second switching device (140) connected in series with each other bet...
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JP2023016488A |
To provide a circuit breaker and a power distribution board that are less likely to be affected by disturbance from neighboring elements and wires.A circuit breaker 1 comprises: an MI sensor 4 provided on a cable way 2; and circuit break...
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JP2022190533A |
To provide a leakage detection circuit capable of protecting a contact part that cuts off a power line to a leakage detection part.A leakage detection circuit 1 includes a first terminal 41, a second terminal 42, a third terminal 43, a f...
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JP7195107B2 |
A current measurement device including current sensors positioned around current conductors in order to form a passage for the current conductors along an axis oriented in a first direction and a differential current sensor positioned ar...
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JP2022122733A |
To prevent a terminal screw from coming off in an auxiliary unit attached to a circuit breaker.A frame member 34 is provided on an auxiliary unit 31. The frame member 34 is arranged on a head portion 41 side of a terminal screw 33 insert...
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JP7122677B2 |
To provide a circuit breaker capable of reducing man-hours required for an operation test.A circuit breaker 2 includes a pull-out part 24 and a processing part 22. The pull-out part 24 performs a pull-out operation to mechanically shift ...
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JP7122678B2 |
To reduce influences to a load due to an interception in duration from performing a performance test by intercepting the power until returning to the original state.The circuit breaker 2 includes a pull-out part 24 and a processing part ...
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