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JP2003331697A |
To provide a disconnector which enables an operator to recognize halfway state of a process in order to stop rotation of an input axis 9a at a halfway position temporally wherein the process comprises; a disconnector (ON) → disconnecto...
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JP3464661B2 |
To provide a pullout-type air circuit breaker which can display a breaking position, test position and connection position accurately, when a breaker body is pulled in or pulled out from a cradle. This air circuit breaker is equipped wit...
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JP2003317581A |
To provide a switch gear capable of not only making its housing space small in containing a DC disconnector in the switch gear but also being arranged so as to be easily visible for the movable terminals of the DC disconnector.A DC disco...
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JP3462367B2 |
To magnetically impel an arc along the peripheral of an electrode positively so as to improve its cutoff performance by placing a part formed among a tip of one arc slot, the other arc slot corresponding to the one arc slot and the perip...
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JP3462005B2 |
To prevent the occurrence of the impossibility of opening-closing operation without increasing open circuit operation force by arranging a contact pressure reducing means to reduce contact pressure of movable contactors to a fixed contac...
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JP2003297193A |
To provide a switch in which insulation materials are appropriately arranged without enlarging the size of a case, an arc generated when the switch is turned off is certainly extinguished between a fixed contact and the tip of a movable ...
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JP2003297195A |
To provide a disconnector reduced in the number of parts to downsize.The disconnector comprises fixed electrodes 1 placed side by side in accordance with the number of phases and movable electrodes 2 respectively opposite to the fixed el...
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JP2003297194A |
To improve the reliability of electric connection and reduce the number of parts to save costs.A power source breaker 1 comprises a housing 4 composed of a cover 2 and a main body of the power source breaker 3, a power source side bus ba...
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JP2003288825A |
To provide a power breaker capable of preventing a human operation mistake.The power breaker is provided with a pair of terminal members 16, 18 arranged in opposition inside a cylindrical guide 23, a cylindrical slider 28 free in sliding...
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JP2003272490A |
To provide a compact and safe direct current disconnector capable of separating an operation link mechanism from a charging part to use only a compact contact as the charging part and being operated from a front side of an opening and cl...
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JP3450125B2 |
To provide a switch which ensures easiness in the assembling and adjusting works irrespective of the accuracy in fabricating the can, reduces the man-hours for manufacture and also suppresses manufacturing cost, and enhances the safety a...
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JP3450122B2 |
To reduce outside dimensions of a container. A driving shaft 19 and a fixed contact 23 are arranged leaving a prescribed distance, and a movable blade 25 which is turned by the driving shaft 19 and the fixed contact 23 are separated. A m...
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JP3444388B2 |
To make the whole body of a breaker apparatus compact by installing a handle for injection and ejection operation in a movable electrode in a manner that the handle can be inclined and storing a fuse to be connected in series with a brea...
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JP3442304B2 |
To allow a fixed side contact to be dismounted and mounted only by shifting it so as to relatively move a contact shaft in the direction of its opening part along a U-shaped cut-out slot and thereby to simply replace a damaged contact of...
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JP3436775B2 |
PURPOSE: To provide an electrode consumption rate measuring device for a disconnecting switch such that an interruption current value can be accurately measured at the time of interrupting a loop current, and by this measurement, a life ...
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JP3435973B2 |
To provide a circuit breaker device that is excellent in safety and compact. A pair of fixed electrodes 11a, 11b are placed upright inside a casing, and a handle 40 provided with a movable electrode 31 that is drawn into and out of the c...
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JP3429987B2 |
To provide an apparatus for displaying operation of a switchgear having improved reliability by lowering impact and vibration affecting on a display means at the time of opening or closing operation. This apparatus for displaying operati...
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JP3431439B2 |
To provide an insulated switchgear which improves breaking performance by restraining the shift of an arc electrode during breaking operation and can be miniaturized. This insulated switchgear is provided with a pair of arc electrodes 4,...
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JP2003522376A |
The invention relates to an electric circuit breaker that includes at least one mobile contact. The contact is connected to operating means that includes an electric motor (6). Movement converting means (16, 17) are provided for converti...
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JP3427153B2 |
To prevent a contact part of a relay conductor from being separated from a contact part of a conductor even in a case where excessive vibrational force is applied to a switchgear from outside, to miniaturize the whole switch gear and to ...
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JP3424284B2 |
PURPOSE: To provide an electrical-equipment driving shaft device for a switchboard, in which the position of operation is held positively even under the state, in which an operating device is removed, the operating device cannot be taken...
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JP3424950B2 |
PURPOSE: To exclude undersirable lateral discharge with high probability even if a radial dimension is small by surrounding a contact component provided on an initial ignition electrode with an insulation sleeve made of high dielectric c...
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JP2003187677A |
To obtain an opening/closing device prevented from chattering phenomenon when opening/closing a contact, miniaturized by reducing the load burdened to an operation axis and operation mechanism.The opening/closing device 100 has fixed con...
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JP2003157749A |
To provide a switch for an electric power in which the installation space and manufacturing cost can be greatly reduced.Two slits 21 are provided so that they become symmetric with respect to the moving side conductor 20 centered on the ...
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JP3407013B2 |
To provide a switching mechanism for the three-positions of on/off/ disconnection or on/off/grounding, or the four-positions of on/off/disconnection/ grounding. In a switching device, a first mechanism 10 mainly comprising a cam 11, an o...
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JP3402042B2 |
To reduce the assembling work in a tank and improve the efficiency of the assembling work and certainty by rotating a fitting plate fitted with an internal structure at the outside of the tank, and inserting it into the inside from the o...
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JP3402136B2 |
To obtain the compact and inexpensive device by providing a driving means which mechanically drives a movable electrode that is connected to and separated from a fixed electrode and a grounding device, providing an insulating means which...
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JP3402135B2 |
To make it possible to provide the compact configuration of a device, by providing a movable electrode which is connected to a fixed electrode and a grounding device through a main shaft, connecting a movable electrode and a load-side co...
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JP3402134B2 |
To make it possible to provide the compact configuration of a device, by arranging a movable electrode, a movable blade and a load side and a conducting flexible conductor on one straight line at the cutoff position of the movable electr...
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JP2003123598A |
To provide an electromagnetic disconnecting switch capable of being used even under high frequency and large-current.This electromagnetic disconnecting switch comprises fixed electrodes 2 provided with cooling channels, movable electrode...
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JP3398949B2 |
To provide a grounding switchgear for minimizing spot network power reception facilities by arranging a movable contact close to an isolator. A grounding switchgear has a power supply side fixed contact part 2 provided at the power suppl...
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JP3395698B2 |
To electrically separate a main circuit from a measuring terminal and improve the reliability of vacuum monitoring and measuring function by providing a fixed electrode and a movable electrode through an insulator on a grounded vacuum ve...
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JP3393509B2 |
To reduce the installation space of a generation plant by accommodating a transformer for measuring instrument and a surge absorber in a second metal container accommodating the operation device of a breaking part and an isolating part. ...
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JP2003100385A |
To prevent a lever from starting to rotate at other than a prescribed rotational position.A guide pin 11 is provided to one connector housing 1 while a guide groove 20 is provided to a lever 2, thus rotatably and reciprocatably providing...
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JP3389796B2 |
To prevent the half-fitting of an electrode. Since this breaker device has the structure to house a communication passage in a casing, it has an excellent safety, and since a handle 40 can be tilted, it can be settled in a low height and...
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JP3387346B2 |
To improve the engagement/separation operability with a handle. When a handle 31 is slid to an engagement part 36 side while throwing down during fitting, lever operation is provided with an engagement point between the engagement part 3...
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JP2003077557A |
To solve a problem wherein a terminal sometimes falls from a bottom plate due to advancing of rust with the lapse of time, when the terminal is only welded on the bottom plate.The terminal 15 having a female screw 15 for connecting a cab...
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JP3385673B2 |
PURPOSE: To provide a locking device for disconnector with a simple structure which can safely perform the maintenance and inspection of a switch including a disconnector. CONSTITUTION: A pushbutton switch 20 is pushed when a safe condit...
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JP3383521B2 |
To simplify the constitution of a link mechanism to connect a handle and a movable contact blade to each other in a switch where the rotational axis direction of the movable contact blade crosses at a right angle to the rotational axis d...
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JP3381532B2 |
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JP3382067B2 |
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JP2003507852A |
A non-venting current limiting fuse for mounting in a cutout comprises a high current fuse component and a low current fuse component housed in separate compartments of a housing and connected in series. Interruption of a low current ove...
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JP3380403B2 |
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JP3374724B2 |
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JP3374723B2 |
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JP2003031086A |
To improve safety for maintenance and inspection, by making releasable the lock of the front door of the protection cover, when the switch is in open state and non-releasable in principle, when it is in closed state.The device comprises ...
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JP2003031085A |
To enable to set easily the working timing of contacts.In the switch, a cam 21 which is engaged and fixed on a rotating drive shaft 17 is driven and the moving contacts 30, 31, 42, 43 and the fixed contacts 26, 27, 38, 39 are contacted a...
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JP2003032819A |
To operate apparatus operating handles inside a switchboard without using a manual, etc., when a fault, etc., are restored.In an operation panel 1 for a switchboard which has system diagrams A1, B1 of No.1 line side and No.2 line side fa...
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JP3369319B2 |
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JP3369321B2 |
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