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Patent Searching and Data


Matches 601 - 650 out of 5,187

Document Document Title
JP6479369B2  
JP2019017226A
To make the voltage, on the secondary of a transformer having an on-load tap changer, more stable.A voltage control program has a voltage value calculation processing function, and an operation command function. The voltage value calcula...  
JP6461132B2  
JP6444699B2  
JP6438028B2
In an on-load tap changer (10) for controlling voltage of a tapped transformer (15) it is provided that the tapped transformer (15) has at least one regulatable phase (16) that has a first winding (20) and a second winding (30); the firs...  
JP6437849B2  
JP6434081B1
To drive a drive shaft by a storage force of a storage mechanism, there is a problem that the storage torque due to the storage force is attenuated as the final stage of the drive range is approached. An auxiliary drive device 10 holds a...  
JP6426733B2  
JP6421484B2  
JP6422686B2  
JP6418717B2  
JP6396285B2
The invention relates to a distribution transformer having a tap-changing device for no-break switching between different winding taps of a distribution transformer. The general inventive concept consists in actuating both the selector c...  
JP6396286B2
The invention relates to an on-load tap changer for switching among different winding taps of a step transformer without interruption according to the preamble of the first patent claim. The general inventive concept lies in actuating bo...  
JP6391906B2  
JP6379193B2  
JP6379192B2
An on-load tap changer has a switching tube, an oil suction pipe arranged centrally and coaxially along an axis inside the switching tube, and a kerosene drain screw so mounted in a base of the on-load tap changer that it is coaxial with...  
JP6373254B2
An on-load tap changer for uninterrupted switching between different winding taps of a tapped transformer has a plurality of fixed selector contacts electrically connected with the individual winding taps, arranged in a line, and actuata...  
JP6333236B2
The invention relates to a control transformer that is designed as a phase-shifting transformer, wherein semiconductor switching components are provided for each phase at a regulating winding with several partial windings. According to t...  
JP6316284B2
The invention relates to an on-load tap changer for switching among different winding taps of a step transformer without interruption. According to the invention, the selector contact unit (7) and the switching means (16, 17) for switchi...  
JP2018064028A
To provide a tap changer and a protection method having less occurrence of a failure with simple configuration.A tap changer in one embodiment has a semiconductor switch and a protection circuit. The semiconductor switch shuts off or tur...  
JP6308835B2  
JP6310905B2
The invention relates to a method for monitoring an on-load tap changer that is used to switch between winding taps of a tapped transformer without interrupting the load current and is actuated using a motor drive. According to the inven...  
JP2018057135A
To solve the problem that it is difficult to promptly switch a tap to an optimal tap since there is a case that the tap is different from an assumed voltage regulated value when the tap is actually switched in a conventional voltage regu...  
JP6290182B2
An operational setting of an on-load tap changer used to switch between various winding taps of a tapped transformer is determined by first placing the on-load tap changer in operation with the tapped transformer and then moving the chan...  
JP6285167B2  
JP6282547B2
An on-load tap changer which ensures the compatibility of an oil tank when an interchange from the in-oil arc switching scheme to the vacuum-valve scheme is made, improves a retrofit function, achieves a space saving by simplifying compo...  
JP6275244B2
The invention relates to a method for performing a switching process in an on-load tap changer between winding taps of a tapped transformer. The switching process for an on-load tap changer is subdivided into a plurality of phases accord...  
JP6250560B2
The invention relates to a transformer with a tap changer, wherein optionally the primary or secondary side can be regulated by the tap changer, and wherein, on the side of the transformer to be regulated, a main winding and at least one...  
JP6239126B2
A gas-insulated measurement transformer for measuring high voltages has a plurality of transformer arrays arranged in a fluid-tight housing for transforming a high voltage to a measurement voltage. Each of the arrays has an active part, ...  
JP2017208504A
To provide a connection terminal in which bubbles are less likely to remain and occurrence of partial discharge is suppressed.The connection terminal has a bottomed tubular outer shape having an opening portion 10a to be crimped to a con...  
JP6180573B1
[Subject] A tap switching arrangement is provided at the time of load which can prevent the situation where output torque of stored impetus drive mechanism which operates a switch which carries out opening-and-closing operation runs shor...  
JP6148851B2  
JP2017515308A
A position indicator for tap changer tap changers, which is the first and second display disc (21,22) for displaying the currently switchable position of the tap changer. A display device (51) that can be gradually switched by each switc...  
JP6120867B2
A tap changer with vacuum-switching tubes for controlling a transformer having taps has a selector for power-free selection of a one of the taps to be switched and a load-changeover switch for actual switching over from the connected tap...  
JP6117338B2
The invention relates to a method for monitoring an on-load tap changer according to the known “windowing technique,” wherein for synchronization, the current (I) on the diverter switch is continuously detected, the effective value (...  
JP6084505B2  
JP6081082B2  
JP6077361B2  
JP6070313B2  
JP6071247B2  
JP6067220B2  
JP6063647B2
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...  
JP6059217B2  
JP6057679B2  
JP2016225590A
To provide an inductor for current-limiting circuit, capable of retaining a large inductance at instantaneous large current conduction for exhibiting a current-limiting effect even with a small size, particularly used for an electric cur...  
JP2016225334A
To provide a compact tap changer having elongated maintenance intervals.The tap changer includes: a first terminal T1 and a second terminal T2 connected to a tap winding 1 of a stationary induction electric apparatus; a first semiconduct...  
JP6030082B2  
JP6025059B2  
JP6012025B2
The present invention relates to a dry distribution transformer comprising a housing (1′), a coil (200), a sealed compartment (100) and a taps panel (110) associated to the coil (200). The taps panel (110) has an electrostatic shield (...  
JP6013875B2  

Matches 601 - 650 out of 5,187