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Patent Searching and Data


Matches 101 - 150 out of 6,694

Document Document Title
WO/2016/060635A1
The invention relates to the field of electrical engineering and can be used in high-voltage electrical grids having a voltage of 110-750 kV. The technical result is that of providing for the generation of reactive power for 110-750 kV g...  
WO/2016/034438A1
The invention relates to a switch assembly (1), in particular a preselector, for a variable transformer (4) having a first winding (2) and a second winding (3) with a first and a second tap (3.3, 3.4), said switch assembly comprising: a ...  
WO/2016/034439A1
A switching arrangement (1), in particular a polarity switching means, for a control transformer (10) which comprises a first winding (2) for a phase of an AC power supply system, which phase is to be controlled, comprises - a first conn...  
WO/2016/009825A1
Provided is an on-load tap changing device with which retrofit functionality can be increased while maintaining compatibility of the oil tank when changing from an in-oil arc changing method to a vacuum valve method, and with which the c...  
WO/2015/169692A3
The invention relates to a system (11), which can provide reactive power in an alternating current network (10), the system comprising: a two-pole (12) having a first two-pole terminal (121) and a second two-pole terminal (122) having a ...  
WO/2015/195064A1
The invention relates to electrical technology and to apparatuses with transverse magnetization. A controllable electric reactor with transverse magnetization contains a magnetic core rod in the form of coaxially-disposed rings which are...  
WO/2015/193011A1
A switching arrangement (15) for an electric system (10) that includes a first and a second tapped winding (11, 13) comprises: - a first on-load tap changer (16) that includes a first discharge terminal (161) and three first switching te...  
WO/2015/185368A1
The invention relates to a switch (10) for a switching device (11), in particular a continuous main switch (10) or a disconnecting switch (10) for a load transfer switch (11) of an on-load tap changer, comprising: a primary lead-out cont...  
WO/2015/185316A1
Measuring arrangement for detecting a magnetic unidirectional flux in the core of a transformer, wherein a sensor (1), formed from a ferromagnetic sensor core (2) which is wrapped around by a sensor coil (3), is arranged in a section of ...  
WO/2015/180483A1
A rolled iron core traction transformer, comprising an iron core (1); the iron core (1) is formed by splicing two symmetrical annealed iron-core closed single frames (1-1); each iron-core closed single frame (1-1) is formed by sequential...  
WO/2015/176918A1
The invention relates to a switching arrangement for a tap-changing transformer with an on-load tap changer, wherein said switching arrangement comprises - a main winding with a first main connection terminal, - a coarse winding with a f...  
WO/2015/172416A1
A mechanical rotary adjustable reactor, comprising a reactor body, an overrunning clutch, an external drive motor and a controller thereof, wherein the reactor body comprises a transformer and a rotary iron core. Both the transformer and...  
WO/2015/164896A1
The invention relates to a plunger core coil (1) comprising a coil (3) with an air gap (5), a threaded spindle (7) which pushes through the air gap (5) and has a cylindrical base body (17) made of metal, and a plunger coil (6, 6') with a...  
WO/2015/124508A1
The invention relates to a switching device, in particular an on-load tap changer, having a housing and at least one exchangeable switching module. The switching device (1), in particular on-load tap changer, comprises a housing (2); an ...  
WO/2015/124511A1
The invention relates to a switching unit comprising a switching module and a cooling channel. The switching unit (1) comprises a housing (2); a switching module (3, 3', 3''), which is arranged in the interior of the housing (2) and has ...  
WO/2015/117661A1
A device for monitoring a current in a primary conductor with respect to a predetermined current threshold, comprising: - a magnetic circuit associable to the primary conductor and comprising a fixed part and an element which can rotate ...  
WO/2015/117708A1
The invention relates to an apparatus for reducing a magnetic unidirectional flux component in the core of a transformer with at least three legs, in particular a three-phase transformer comprising at least one compensation winding per t...  
WO/2015/113800A1
The invention relates to an on-load tap changer (2) according to the reactor switching principle for uninterrupted load switching between different tap windings of a tapped transformer (1), comprising: - an inductor (3) which is designed...  
WO/2015/090228A1
A transformer, a synchronous generator and a synchronous motor. The transformer comprises a first coil (130), a second coil (140) and iron cores, wherein the iron cores comprise a fixed iron core (110) and a rotating iron core (120); the...  
WO/2014/127932A3
The invention relates to an on-load tap changer (1) for controlling voltage, comprising semiconductor switching elements (61, 62, 71, 72), and to a method for controlling voltage for a variable transformer (2). The on-load tap changer (1...  
WO/2015/081400A1
A modular switch is described, of the type including a main module that can be used on its own as a single-phase switch, and one or more complementary modules (22) enabling use as a two-phase switch, a three-phase switch, and so on. The ...  
WO/2015/082531A1
The invention relates to an electrical installation (1) for a three-phase alternating current network, comprising, for each phase (U, V, W) of the alternating current network, a transformer (20U, 20V, 20W) having a primary side (30U, 30V...  
WO/2014/118615A3
A power transmitting device includes power transmitting coils, which contactlessly transmit electric power to a power receiving coil, and a switching device. When the power receiving coil is a solenoid coil, the switching device connects...  
WO/2015/044331A1
In a method for the gas-free, in particular acetylene-free, operation of an on-load tap changer (2) with a preselector (2.2) for switching over between a plurality of winding taps of an oil-insulated transformer (3) without interruption,...  
WO/2015/044361A1
The invention relates to a tap changer for a power transformer comprising at least one main and one regulating winding, with a preselector (20) and a fine selector (18), which comprises at least one fine selector contact (29, 30). Beside...  
WO/2015/044324A1
The invention relates to a switching arrangement (15) with a pre-selector (28) for a power transformer (10, 40) which has multiple windings (12, 14). The pre-selector is designed to optionally connect at least one first winding (12) to o...  
WO/2015/028253A1
In an on-load tap changer (10) for voltage regulation of a tap-changing transformer (15), provision is made for the tap-changing transformer (15) to have at least one phase (16) to be regulated which has a first winding (20) and a second...  
WO/2015/022089A1
The present invention relates to a method of manufacturing an electromagnetic induction device with On-Load Tap Changer, OLTC, capabilities. The method comprises: a) providing an electromagnetic core with windings, b) suspending an OLTC ...  
WO/2014/202447A1
The invention relates to a local network transformer, comprising: - a transformer winding on the side of the local network voltage, wherein an end region of the transformer winding has at least two first taps and the other end of the tra...  
WO/2014/183103A1
A method is shown to create soft transition in selected topologies by controlling and designing the magnetizing current in the main transformer which will exceed the output current at a certain point in the switching cycle and which will...  
WO/2014/144501A3
The present disclosure provides techniques for an improved switching module for voltage regulators or transformers with voltage regulating taps. The switching module disclosed herein includes a first bypass switch and a second bypass swi...  
WO/2014/173497A1
The invention is related to a coil assembly (22, 42, 72, 92) for a dry high-voltage transformer, comprising at least one coil with hollow cylindrical electrical winding (24, 44, 94) and with taps (104), wherein the coil is surrounded at ...  
WO/2013/163052A3
A system for heating a hydrocarbon resource in a subterranean formation having a wellbore extending therein is provided. The system includes a radio frequency (RF) source, an RF antenna to be positioned within the wellbore, and a transfo...  
WO/2014/167205A1
In order to allow adjustments in the voltage on the basis of the charge fluctuations, an MV/LV transformer (10) is combined with a second booster transformer (20), comprising a plurality of sockets (22, 24, 26) on the primary winding of ...  
WO/2014/161729A1
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...  
WO/2014/153936A1
A self-adaptive load type distribution transformer comprises a distribution transformer body unit, an on-load capacity-adjusting and voltage-adjusting integrated unit, an associated equipment unit, and a comprehensive control unit. The d...  
WO/2014/016532A3
The present invention concerns an adjustment device intended to equip electrical networks, and more particularly a device (3) for dynamically adjusting the voltage of an electrical network (1) having a first voltage and an electrical net...  
WO/2014/129055A1
The purpose of the present invention is to ensure insulation distances among tap lead parts, and to decrease the height of a coil, so as to reduce the size of a transformer. In order to facilitate the connection of tap lead lines, a stra...  
WO/2014/103406A1
An electrical circuit forming unit is constituted by forming a steady-state electrical circuit by arranging a plurality of mutually adjoining contact members (11) capable of contacting with and separating from each other between a first ...  
WO/2014/078870A1
Techniques for improving performance of a transformer shared amongst a plurality of operating modes. In an aspect, first and second primary windings of a transformer are coupled to an AC ground voltage. Primary windings are mutually coup...  
WO/2014/056694A1
The invention relates to an on-load tap changer (1) with a tickler winding (4) and to a method for operating an on-load tap changer (1) with a tickler winding (4). The on-load tap changer (1) is used to transfer a load from one step cont...  
WO/2014/048650A1
The invention discloses an on-load tap changer having a preselector (20) for controlling a control transformer (T) without interruption. The preselector (20) has a plurality of contact bars (21, 23, 25). One of the contact bars (25) is m...  
WO/2014/047917A1
A single-phase electric furnace transformer is provided according to the basic principle of the invention, comprising: a single magnetic core, said magnetic core comprising two side columns and at least one main column; a main transforme...  
WO/2014/026805A1
The invention relates to a load transfer switch for an on-load tap changer for switching from a connected winding tap to a preselected winding tap of a tapped transformer. The load transfer switch comprises at least one resistance-free c...  
WO/2014/019858A1
The present invention relates to a step switch (1) according to the reactor switching principle for interruption-free load transfer by means of at least one load interrupter (4, 5). For a step switch (1) according to the reactor switchin...  
WO/2014/021773A1
The invention concerns a device comprising a controllable grounding transformer (1 ) arranged to compensate for a residual operating current in grounding of an alternating- current network having a power transformer (3). A primary windin...  
WO/2014/019828A1
The present invention relates to a step switch according to the reactor switching principle for interruption-free load transfer by means of vacuum interrupters in accordance with the preamble of claim 1. For a step switch according to th...  
WO/2014/016532A2
The present invention concerns an adjustment device intended to equip electrical networks, and more particularly a device for dynamically adjusting the voltage 3 of an electrical network having a first voltage 1 and an electrical network...  
WO/2013/179475A1
A transformer device, provided with: a primary coil (3), which receives an AV voltage; and a plurality of secondary coils (4a, 4b) having different numbers of windings, each of the secondary coils (4a, 4b) separately having first termina...  
WO/2013/170405A1
A changeover selector with a vacuum arc-extinguishing circuit comprises: a central shaft (601); a moving contact (603) driven by the central shaft to rotate; and a first fixed contact (604) and a second fixed contact (605) which are circ...  

Matches 101 - 150 out of 6,694