Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 501 - 550 out of 6,443

Document Document Title
JP2014060274A
To prevent a movable contact from having a defect in switching even when a cam disk is rotated fast.A changeover switch has a cam disk 18 having a recessed cam 181 at an outer periphery, a pair of stationary contacts 12, 13, and a movabl...  
JP2014507800A
The present invention relates to a tap changer at the time of load for, switching without interception of between a winding tap of a stepdown transformer, and a winding tap which has a vacuum valve. A tap changer is based on abstract tho...  
JP2014506733A
The present invention relates to a tap switching arrangement with which two parallel load part Kibe who has arranged a plurality of change units made from a semiconductor with a た form connected in series, respectively is stationed, wh...  
JP5431212B2  
JP2014504808A
The present invention relates to a tap switching arrangement which equipped with a changeover section article made from a semiconductor control 変成器 which has a control coil and which controls voltage. This tap switching arrangement...  
JP5419079B2  
JP2014029901A
To provide a power electromagnetic apparatus in which a magnetic core structure and a winding structure are simple and reactance is variable.A tripod magnetic core which symmetrically forms a pair of closed magnetic circuits with a centr...  
JP5416133B2  
JP2014022626A
To provide a reactance variable and three-phase integrated type electromagnetic apparatus which improves three-phase balance.A basket-shaped magnetic core is formed by connecting both end portions of each of six linear leg part iron core...  
JP2014023227A
To provide an instantaneous voltage adjusting device and an instantaneous voltage adjusting method in which a low voltage side voltage is adjusted using a semiconductor switch having no limitation on the number of switching, and fine vol...  
JP2014022432A
To provide a maintenance support device and a maintenance support method for transformer that can appropriately determine a state of a transformer.There is provided a maintenance support device for transformer that is provided with an in...  
JP2014017387A
To provide a manufacturing method for a tapped coil of novel structure which eliminates the need for a work of forming a tap by bending a conductor in the way of manufacturing the coil body, or a work of connecting a conductor for leadin...  
JP2014502049A
The present invention relates to a tap changer at the time of the load for switching without interception of between the winding tap of a stepdown transformer, and a winding tap. Two load part Kibe is provided to each phase which should ...  
JP2014501441A
[Subject] The present invention relates to the tap changer for controlling the voltage of the control transformer which has a control coil by a solid-state-switching element. This tap changer is constituted by the module type. Each modul...  
JP2014007234A
To improve withstand voltage performance of a transformer for a converter.This transformer for the converter includes first and second lead members, a plurality of first to third barrier members, and a plurality of insertion members. The...  
JP5389290B2  
JP5390162B2  
JP2013254835A
To obtain a transformer capable of stabilizing system voltage by enabling control over a starting current of an AC motor.In the transformer, a primary winding 2 and a secondary winding 3 are sequentially arranged concentrically at an out...  
JP5366097B2
To provide a secondary side power reception circuit of a non-contact power supply facility capable of stably supplying power at the voltage required from a load, without depending on a saturation voltage of a saturable reactor that fluct...  
JP2013247173A
To provide an on-load tap changer and a transformer which have a compact simple configuration and can perform accurate abnormality determination without overlooking any slight abnormality, thereby improving system safety and reliability....  
JP2013247731A
To provide a superconducting current limiter in which degradation of insulation performance can be minimized even during current limit operation.A plurality of superconducting coils 5 formed by winding a superconducting wire 2 a pluralit...  
JP2013247808A
To provide a connection mechanism for a secondary side of a transformer which permits easy separation of an apparatus connected and easy connection of a mobile apparatus.A connection mechanism for a secondary side of a transformer includ...  
JP2013247170A
To enhance durability by suppressing consumption of a neutral contact, and to enhance positioning accuracy, compactness and economy by simplifying the configuration.A neutral contact 16, a first tap contact 17 and a second tap contact 18...  
JP2013243233A
To provide a transformer with an automatic tap changer for use in construction enabling replacement work of a pole transformer in an uninterruptible state and to provide a replacement method of a pole transformer.The transformer with an ...  
JP2013243194A
To provide an on-load tap changer that is free from occurrence of insulation breakdown even when being in a current carrying state before and after a switching behavior and is excellent in reliability.A movable contactor M1, a current-li...  
JP5360427B2
To provide a power supply device capable of controlling an output voltage without using a complicated control circuit on a primary side. A power supply device has: a transformer with cores 1, 4, and 5 that form a coupling magnetic path f...  
JP5352975B2
In the upper face of a substrate (22), there are formed a plurality of recesses (25). In one recess, a variable condenser (27) is formed by mounting a plate-shaped stationary electrode (30) on the bottom face of the recess (25) and by mo...  
JP5354730B2
To simplify structure in a three-phase voltage-controlling transformer assembly for controlling an output voltage at a non-step mode. The three-phase voltage-controlling transformer assembly includes three sets of first to third transfor...  
JP5354728B2
To achieve a simple configuration as well as stepless control of the output voltage, in a voltage controlled transformer. The voltage controlled transformer includes: a transformer formed by winding an input winding AN1 and an output win...  
JP2013229589A
To impart a function of indicating that a voltage adjustment function reaches a limit to a column upper transformer with an automatic tap switching function.A column upper transformer with an automatic tap switching function comprises: a...  
JP5336136B2
To provide an existing automatic voltage regulator for power distribution in which a protective cover is easily attached to a tap position inspection window even for a field assembled article. In the automatic voltage regulator for power...  
JP2013539221A
The present invention relates to a tap changer at the time of load for switching without interception of between a winding tap of a stepdown transformer, and a winding tap. Two load part Kibe is provided to each phase which should be swi...  
JP5317896B2
To provide a vacuum valve which allows use in high pressure gas and a tap switching device for gas insulation load which is small sized and has high reliability suitable for the vacuum valve. The vacuum valve 2 is arranged inside a seale...  
JP5318024B2
To switch a Δ-connection to a V-connection, while preventing the increase of a loss due to a load loss. A load factor calculating section 11 calculates a load factor of a three phase power transformer on the basis of the detection value...  
JP2013538547A
A switch is provided with a course including a plurality of transformers and arbitrary numbers of wiring. Each transformer of a plurality of above-mentioned transformers is provided with a core and a control coil. The course is constitut...  
JP2013537717A
The invention relates to an on-load tap changer for switching among different winding taps of a step transformer without interruption. The general inventive concept lies in eliminating the previously static design of the on-load tap chan...  
JP2013201319A
To improve assembly operability while improving the reliability of a device by reducing a load on a shaft.A tap changer includes a metallic driving shaft 110, a current collecting contac shoe 120 extending outside the driving shaft 110 i...  
JP5296471B2
To provide an existing automatic voltage regulator for power distribution in which work for providing a protective plate to a viewing window through which a check of a tap position is greatly simplified. A bolt pass-through hole 312a is ...  
JP2013535849A
The present invention is a tap changer for switching continuously between winding taps of a tap transformer, A tap transformer is related with a tap changer provided with a transformer tank filled up with oil, and it is a tap changer, It...  
JP5286610B2  
JP2013175776A
To provide a compact tap switching device capable of performing high-speed silent tap switching with a simple structure in which a driving mechanism is reduced, and to provide an inexpensive silent and space-saving type on-load tap switc...  
JP5279864B2  
JP5280510B2
An electrical winding (2) elongated across the width of a running metal plate (4) is located above the plate and orientated parallel to it. Magnetic bars (9) associated with the winding may be individually slid along it to adjust the fie...  
JP5283261B2
To provide a compact tap changer capable of changing taps at high speed and quietly while having a simple configuration with less driving mechanism compared with conventional ones, and to provide an inexpensive, quiet, and space-saving o...  
JP5279120B2
To provide an inexpensive and compact on-load tap changing device. The on-load tap changing device is characterized in being composed of one current-limiting resistance by arranging the current-limiting resistance 408 on an insulating pl...  
JP5276961B2
To provide an on-load tap changing device which is compact, generates low switching noise, and can optimize a cutoff speed. The on-load tap changing device is characterized in that the cutoff speed can be optimized and noise due to a cut...  
JP2013162604A
To provide a power facility support system that can apply an optimal amount of load suppression to a transformer in tune with a coping time necessary for a worker to cope with trouble.An electric facility operation support system compris...  
JP2013530520A
The present invention relates to a tap switching arrangement at the time of load for stepdown transformers. A tap switching arrangement has one [at a time] main current part Kibe and auxiliary current part Kibe to each of two winding tap...  
JP5237994B2  
JP2013528942A
The present invention relates to a tap switching arrangement at the time of load for switching without interception between winding taps of plurality of a stepdown transformer. According to the present invention, within each auxiliary cu...  

Matches 501 - 550 out of 6,443