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JP3129583 |
PURPOSE: To provide the mechanical interlock function of a manual trip device in an opening/closing mechanism having an opening/closing shaft on the outside of an operation box. CONSTITUTION: A lock plate 31 formed with a hook section 31...
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JP3127791 |
To enhance the efficiency and accuracy for machining the front and rear plates and to reduce the assembly time, the number of part items, and the cost of an operating device for a switch. A front plate 35 and a rear plate 43, through whi...
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JP3127816 |
To require no alignment of a fixed contact piece and a moving contact piece, and provide the stable contact of the contact pieces even if the displacement and the tilt of the moving contact piece relative to the fixed contact piece exist...
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JP2000311576 |
To provide a power source breaking device capable of sufficiently securing the insulating state, having an excellent operability. This device 10 is a power source breaking device provided with a fuse housing box 14, a power source side b...
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JP2000311538 |
To conform to safety standards and reduce restrictions on design and manufacture. This power switch is provided with a handle 2, a shaft 3 with a lock member 5 installed integrally with the handle 2, a circuit switching part 4 for turnin...
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JP2000308222 |
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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JP2000306474 |
To substantially make a size small by installing a vacuum container for housing one or plural switches for switching a fixed electrode and a moving electrode each connected to different outside conductors, molded with an insulating mater...
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JP3124584 |
PURPOSE: To prevent a trouble of open phase and short-circuit due to connection omission and wrong connection relating to power side and load side connection terminals of a construction work low voltage switch used for parallel operation...
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JP2000299040 |
To obtain a switchgear with a small size, high reliability, and high safety. Movable electrodes 13b, 14b are fixed to the end of a lever 19, and by operating the lever 19 with an operating rod 20, a main circuit switching part 13 for swi...
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JP2000294088 |
To provide a switch gear excellent in breakdown voltage, assuring safety, and capable of being constructed small. A vacuum vessel 14 is equipped internally with a bus bar side conductor 3 furnished with a stationary electrode 3a at the f...
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JP2000294063 |
To provide a contact device capable of reducing the contact resistance of a current feed contact and increasing the current feed capacity without enlarging the device. A projection 49 is provided on either of the periphery of a conductor...
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JP2000294090 |
To reduce ground accidents by electrically insulating a vacuum container from a ground voltage. A main circuit switch portion 20 and a ground switch portion 30 is stored in a vacuum container 10 of this switch gear, and the main circuit ...
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JP2000294083 |
To provide a switch with a built-in fuse capable of being constructed small. A body case 11 has two walls 1a and 11b, and a power supply side bushing 12 is penetratively supported by one side wall 11a while a load side bushing 31 and acc...
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JP2000285774 |
To provide a switchgear which secures safety and is easy to reduce in size. This switchgear is made up of a switching mechanism, a vacuum container 10 for housing the switching mechanism, and an insulating mold 60 covering the vacuum con...
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JP2000285768 |
To provide an operating mechanism for a three-position switching device, which has a structure capable of being reduced in size and simplified and is less liable to cause a malfunction relative to both automatic operation and manual oper...
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JP2000287318 |
To fix a grounding conductor in a prescribed direction with one bolt by providing a plate-shaped grounding terminal of a switch, a fixing fitting formed with a bolt hole, a folded plate coming into contact with the terminal, an insertion...
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JP2000276984 |
To provide an interlock device for a switch capable of surely inhibiting grounding work when a cable is live. In this interlock device for a switch, when a cable 3 is live, electricity is not supplied from a drive control device 8 to an ...
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JP2000268686 |
To provide a switchgear enabling the time of sealing work to be shortened and enabling its manufacturing cost to be reduced if a main-circuit switching part and a ground switching part are disposed within a vacuum container. In this swit...
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JP2000268685 |
To provide a switchgear capable of being reduced in size and making it possible to lower its cost, even in the cases where power is distributed from a single-phase bus to a plurality of power transmission cables. An insulating rod and a ...
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JP2000268659 |
To provide a switch operating device, having sure locking action and high reliability by improving a key interlock mechanism, and capable of surely preventing incorrect operation by improving an operation locking mechanism. This switch o...
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JP2000260267 |
To provide a device wherein the contact condition between a movable contact and a movable side conductor is always kept in a stable state by forming a contact between the movable contact and the base part of the movable contact, and by a...
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JP2000260269 |
To construct a breaker device small and light and facilitate the drawout/set-in operations of a movable electrode. Stationary electrodes 14 to form a couple are fixed to a male housing 13. A movable electrode 30 is accommodated in a fema...
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JP2000260266 |
To reduce the driving force required to operate a movable element. A current collector 6 is fixed to a movable element 1 capable of contacting with and separated from a stator 3, and a movable side shield 2 installed as covering part of ...
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JP2000260250 |
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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JP2000260268 |
To prevent a short circuit accident by forming terminal block stoppers for restraining a terminal block from rotating over a specific angle in the lengthwise direction at the closing time of a blade in opening a disconnector on a hinge b...
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JP2000253523 |
To reduce an installation space by disposing a vertical one-point cut porcelain gas circuit breaker and a vertical single-cut breaker on a common bed. A vertical single-out breaker 31 is disposed on one end side of a common frame 35, and...
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JP2000251585 |
To enhance the heat resisting temperature of the part suffering an arc damage and prevent the softening of a base material to improve the reliability by composing a high melting point material with a high conductivity material to constit...
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JP2000251587 |
To provide a vertical one-point disconnector that always stops at substantially vertical position of a blade inverted position. In this disconnector, a blade 3 is mounted over a rotation insulator 1 via a knuckle joint mechanism 2, and a...
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JP2000251593 |
To allow a dynamic characteristic optimal to movement of a control cam and to minimize driving energy required for changeover. This control cam 1 is a part of a driving device for a disconnector. At least one guide curved part 10 is form...
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JP2000251586 |
To prevent earthquake from causing a relative displacement between a fixed contact and a movable contact in a route closing state of a disconnector, and keep a stable contact state. A movable-side auxiliary contact 30 is mounted to the t...
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JP2000243191 |
To reduce the size of a pressure-contact means used for bringing a movable electrode into pressure contact with a fixed electrode. A base end part of an elastic lever 42b is fastened to a base end part of a main lever 42a fastened to an ...
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JP2000243193 |
To simplify a structure, facilitate locking operation, and improve the reliability in safety by causing a lock signal to be outputted when a lock pin is mounted in a manually operated shaft. A shutter 28 having a lock-pin insertion hole ...
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JP2000243205 |
To provide an operation device of a switch capable of easily carrying out an electrically driven operation, after carrying out a manual operation. In this device in which an operating force is transferred to a slider 33 by a clutch engag...
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JP2000243189 |
To reduce the number of component items, realize size reduction, and facilitate assembly and adjustment. Fixed electrodes 11 are provided and three-phase parallel disposed on a base plate 15 by means of support insulators 13. Movable ele...
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JP2000235824 |
To provide a breaker device allowing prevention of plastic deformation of a curved spring. A movable electrode 12 of a breaker device is provided with an insulating base 13, a handle 14 tiltably mounted to the base 13 and a curved spring...
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JP2000236603 |
To prevent the occurrence of mechanical troubles by reducing the occurrence of impact giving mechanical stresses due to inertial forces. An opened/closed state indicator for switch is constituted by connecting an opened/closed state indi...
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JP2000231861 |
To reduce the amount of insulating gas used in a closed-type gas insulated switching device using a disconnector by improving the insulating performance of the disconnector by a method different from those in the past. A movable insulati...
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JP2000228134 |
To prevent an improper current conduction by restricting the vibration of blade contacts for individual phases caused by electromagnetic force when short-circuit current is conducted, and to reduce the size of an operating device by redu...
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JP2000215763 |
To simplify and miniaturize a structure, and to reduce a cost. This device is equipped with a driving lever 16 and a connecting lever 22 anchored on a driving shaft 15, a blade 17 connected to the driving lever 16, for switching the ON s...
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JP2000215768 |
To provide a vacuum switchgear easy to be handled, having a simplified operation mechanism, by permitting automatic execution of a series of operations of breaking and disconnection. In a vacuum valve 1 where a moving electrode 2 is move...
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JP2000207975 |
To miniaturize a device and to dispense with a cover covering a connection part of a fixed electrode with a conducting path. Since a pair of fixed electrodes 20L, 20R form a single-pole fixed electrode couple 44, by arranging its electro...
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JP2000209723 |
To provide a breaker itself with a disconnection function. Tulip contacts 31a and 31b are provided on a pair of electrode terminals 30a and 30b of a vacuum interrupter 8. A linking plate 24, with which slidable and movable terminals 22a ...
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JP2000208004 |
To mechanically lock an operating device at all times so as not to be moved by an external force from the side of a switch in the cases where the switch is not operated, and immediately stop the device while it is taking switching action...
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JP2000209714 |
To provide a multipolar breaker assembly whose horizontal dimension is reduced in order to feed power to a primary power supply board in a transportable manner, even in an emergency state. A metal bay whose horizontal dimension is reduce...
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JP2000197221 |
To form a closed type gas insulated three-phase switchgear, in such a way that the switchgear can be used for low levels (73-145 kV) in a high- voltage division and can be assembled easily, and in addition, the space required by the swit...
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JP2000195390 |
To arrange respective components, such that terminals of bushings have intervals corresponding to air insulation outside an outer case and the intervals are reduced inside the outer case by an insulating gas to miniaturize and lighten th...
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JP2000182722 |
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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JP2000182482 |
To prevent a corona discharge from occurring between a roller follower attached to the end of a drive lever and a drive plate in a disconnect switch, in which the roller follower is loosely fitted into an oblong hole in the drive plate a...
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JP2000182481 |
To prevent damage to fixed and movable auxiliary contacts so as to extend the intervals between parts replacement times and to stably shut off small currents by reducing the time for the arc generation of both of the auxiliary contacts d...
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JP2000164079 |
To provide a breaker device capable of opening and closing two systems of circuits by one run of operation and being constructed in a small size.A breaker device 10 is equipped with stationary electrodes 20 and movable electrode 30 which...
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