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JP3846528 |
To provide an earth leakage breaker a facilitating wiring work by reducing the number of parts items for electrically connecting a primary conductor, an earth leakage detecting circuit to each other and for connecting the earth leakage d...
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JP2006228571 |
To restrain an intrusion level of a thunderbolt surge and noise to a detecting circuit with a simple circuit constitution.A leakage protective device has ZCT connected between the power source side and the load side of a single-phase cur...
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JP3843612 |
To miniaturize a printed wiring board, and to improve housing into a case by providing the printed wiring board mounted with an electronic part by arranging a cutout in the edge and a zero-phase current transformer on the printed wiring ...
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JP2006216270 |
To prevent a dangerous failure from being generated by an excessive surge with a simple structure, in a three-phase earth leakage breaker performing breaking operation by surely detecting leakage even if either one of three phases is int...
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JP3837580 |
To provide a breaker shut-off device capable of breaking a main breaker by pushing an emergency button switch installed in the vicinity of a security interphone in such an emergency as fire so as to permit to extinguish objects of an ele...
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JP2006210092 |
To provide a power memory switch (PMSW) which can decide a power supply state defined at the time of commercial power supply.In the supply mechanism of commercial power, the status of power supply of an electric apparatus and a lamp line...
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JP2006202534 |
To provide an electronic breaker which ensures current-carrying/breaking performance compliant with the regulation and can supply maximum electric power according to a rated capacity with stability.The electronic breaker 1 is formed by a...
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JP3826610 |
To provide an earth leakage circuit breaker improved in assembling facility. In an electromagnet device 60, a small-diameter part between a flange-shaped drive part 69a and a pressing part 69b of a plunger 67 is engaged with an engagemen...
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JP2006184243 |
To provide an electric leak checker never causing extinguishment of a display even in a case that the storage capacity of a battery is used up since the power consumption related to the electric leak display is small.The electric leak ch...
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JP2006184242 |
To provide an electric leak checker capable of reducing the cost and the outer shape dimension of a case by reducing the number of switches by one, and preventing failure of power input by switching of sensitivity current which turns the...
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JP2006184244 |
To provide an electric leak checker with a small size and satisfactory handling property, which is operable without using a battery or needing a direct power supply from a cable way, and never causes extinguishment of a display at the ti...
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JP3825442 |
To provide an accessory of a circuit breaker for protecting a motor, which can execute a remote control trip drive function and an under-voltage trip drive function by one accessory. This device is composed of a coil part for the undervo...
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JP3821249 |
To prevent a malfunction owing to a lightning surge. Parallel to the resistance 4 of a filter inserted between a zero phase converter 3 and the input step comparator 19 of an earth leakage detecting IC 7, a diode 20 whose regular directi...
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JP3818305 |
To prevent a circuit from being unnecessarily turned off by interrupting power only in a circuit using a predetermined current or larger, when an earthquake is detected from a signal from a seismoscope. A power interrupting device includ...
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JP2006155911 |
To provide a remote control type ground leakage breaker which suppresses the device from becoming large as much as possible and can facilitate to accommodate two-pole type by the width dimension of one pole.The leakage breaker comprises ...
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JP2006155909 |
To provide a remote control type leakage breaker which can prevent burning of a test switch even if a low cost leakage detector is used, and does not have burning of a tripping coil even if electric current continues flowing into the tri...
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JP2006155912 |
To provide a remote control type ground leakage breaker in which the relay contact device of each pole can be open-close driven by one electromagnet device and the width dimension per one pole can be made small without making large the d...
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JP2006155910 |
To provide a remote control type ground leakage breaker in which the width dimension per one pole can be made small by open-close driving a relay contact device of each pole by one electromagnet device and the magnetic flux of the perman...
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JP2006156304 |
To provide an earth leakage protection device which can prevent its malfunction caused by a lightning surge current by using a simple circuit structure without requiring a complex malfunction preventing circuit even a case of making a SP...
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JP2006156071 |
To provide a circuit breaker with a reclosing function that can indicate a definite operation factor in a circuit breaker and can ensure a reclosing operation at the operation of the circuit breaker by selecting whether to enable or disa...
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JP2006147304 |
To improve original reliability of an earth-fault protection function by selecting a resist material so as to prevent a protecting resist overlaid on a printed circuit board from being carbonized by arc heat in short-circuiting breaking ...
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JP2006147595 |
To provide a ground leakage breaker improved in workability of a conductor in relation to a zero-phase-sequence current transformer and is capable of mutually and surely insulating a conductor of each of poles.When an interpole insulatin...
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JP3807042 |
To provide an earth leakage breaker in which a trip unit can be securely reset in simple constitution. In this breaker, an actuator 7 is connected to an armature 6a of a plunger type trip coil 6 which acts by receiving a signal from a le...
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JP3807010 |
To improve the structure of a trip coil integrated into a trip unit so that a stable trip operation can be provided for a long period without being influenced by the dust penetrated into a breaker case from the circumference or the soot ...
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JP2006127888 |
To provide a ground fault interrupter capable of performing tripping control (leakage control) of a main circuit contact part and taking out of insulation state information of the main circuit with separate signals.The ground fault inter...
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JP2006120416 |
To provide a circuit breaker capable of reducing the number of parts and processes of assembly needed for fixing of a conductor and a printed wiring board.Tap holes 2Rb, 2Sb, 2Tb for fixing screws 5 to be screwed in to fix three conducto...
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JP2006120415 |
To provide a ground fault interrupter with stable tripping characteristics keeping an engaging piece of each switching mechanism part and a tripping part of each of a plurality of electromagnetic tripping devices at a constant distance e...
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JP2006120563 |
To improve a switch for breakdown strength test mounted on a ground fault interrupter for its operability, visual confirmation of ON/OFF action position, and interlocking function with an opening/closing mechanism, and to add a switch wi...
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JP2006114516 |
To improve workability of a conductor against a zero-phase current transformer and enable a conductor of each polarity to surely insulate from each other.An inter-pole insulation barrier 42 arranged inside the zero-phase current transfor...
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JP2006114517 |
To improve workability of a conductor against a zero-phase current transformer and enable a conductor of each polarity to surely insulate from each other.An inter-pole insulation barrier 42 arranged inside the zero-phase current transfor...
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JP2006114518 |
To improve workability of a conductor against a zero-phase current transformer and enable a conductor of each polarity to surely insulate from each other.An inter-pole insulation barrier 42 arranged inside the zero-phase current transfor...
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JP2006114515 |
To improve workability of a conductor against a zero-phase current transformer and enable a conductor of each polarity to surely insulate from each other.An inter-pole insulation barrier 42 arranged inside the zero-phase current transfor...
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JP2006114514 |
To improve workability of a conductor against a zero-phase current transformer and enable a conductor of each polarity to surely insulate from each other.An inter-pole insulation barrier 42 arranged inside the zero-phase current transfor...
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JP3794451 |
To lessen the number of components and save space, by doing away with connect lead wires among a residual current transformer, a test switch and a printed wiring board, and simplifying the test switch. A case 1 is mounted with a main cir...
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JP2006107737 |
To provide a ground fault interrupter capable of being structured of components of low cost and high reliability with product life elongated and cost reduced.A power source circuit 8 for supplying power source to a leakage detection circ...
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JP3793753 |
To improve workability of a conductor to a zero-phase-sequence current transformer, and to mutually surely insulate the conductor of respective poles. When arranging an interpolar insulating barrier 42 inside the zero-phase-sequence curr...
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JP3788353 |
To solve the problem associated with a conventional ground detector, which detects positive and negative signals of ground current sand if ground fault occurs at the phase control part of an inverter, there are only positive or negative ...
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JP2006092770 |
To provide a ground leakage display device for ground leakage breaker capable of eliminating display failures, while simplifying the structure.A tripping plate 7 of an electromagnetic tripping unit 4 includes a first locking part 7c and ...
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JP2006092771 |
To provide a ground leakage breaker capable of minimizing the operating force of an operation handle by automatically performing, at actuation of an electromagnetic tripper, resetting of the tripper interlocked with interrupting operatio...
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JP2006092772 |
To provide an electromagnetic tripper for ground leakage breaker capable of surely resetting an opening and closing mechanism, even when the mounting position of the electromagnetic tripper is shifted slightly.This electromagnetic trippe...
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JP3786223 |
To reduce drop in characteristics caused by a magnetic flux of current flowing in a connecting conductor in a current transformer in which the connecting conductor is connected to both ends of a passing through conductor which passes thr...
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JP3771404 |
To cut off a wiring route instantaneously when a discharge-type short circuit such as a short circuit between cord conductors, a tracking short circuit, etc., occurs while the wiring route is not cut off when an overflow current or a rus...
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JP2006048960 |
To provide a power supply outlet capable of performing a test for operation validation of tracking detection.The power supply outlet 1 comprises switch contacts 4 for opening and closing electric path 3, receiving blades 5 that grid plug...
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JP2006048958 |
To provide a power supply outlet with an earth leakage breaker capable of adding a tracking preventing function requiring little space by addition of a few components.The power supply outlet 1 with the earth leakage breaker comprises rec...
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JP3768342 |
To enhance interchangeability of a trip device. This circuit breaker is equipped with a circuit breaker unit and this unit is mounted with a communication module 4, a processing module 2 and a calibration module 3. The communication modu...
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JP2006040666 |
To allow a withstand voltage test to be safely executed by separating a ground fault detection circuit from a main circuit by a simple operation without changing an internal structure of a ground-fault interrupter.This ground-fault inter...
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JP3763275 |
To provide a ground-fault interrupter capable of eliminating possibility of reverse connection by an operator while a work of measuring insulation resistance of a load is easy. There are provided an apparatus body 1 where a pair of plug-...
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JP3763977 |
To provide a voltage tripping device which is embodied in a small size and at a low cost and can be assembled easily. An electromagnet is actuated with a signal voltage to cause a plunger 22 protruding to press a trip bar 16, and after t...
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JP3763278 |
To provide a circuit breaker capable of easily mounting current transformers, equipped with two built-in current transformers as well. Two current transformers CT are mounted to the circuit breaker housing contact points of three poles. ...
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JP2006025513 |
To provide the trip device of a circuit breaker with high reliability which can intercept a circuit breaker by certainly operating a trip coil by the secondary current of a current transformer when the current of an electric path becomes...
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