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Matches 1 - 50 out of 6,505

Document Document Title
WO/2018/070023A1
An on-load tap switching device according to an aspect of the present invention has a changeover switch and an insulating mediator. The changeover switch includes a semiconductor switch, and shifts the transformation ratio by switching t...  
WO/2018/063766A1
An inductor has a conductor layer formed by multiple concentric co-planar turns of ultra-thick metal (UTM) adapted to receive current at a frequency of at least one gigahertz. The multiple turns of UTM proceed from an innermost turn to a...  
WO/2018/054802A1
The invention relates to a method and to a device (1) for generating an electromagnetic field for inductive energy transmission, in particular to a mobile terminal device (2), wherein the device (1) comprises a plurality of electrical co...  
WO/2018/050522A1
The invention relates to a method for switching an on-load tap changer (11) comprising a tap selector (20), which comprises: a plurality of selector fixed contacts comprising a commutation contact (200) which can be connected to an origi...  
WO/2018/037114A1
The invention is concerned with a monitoring device, method and computer program product for monitoring a transformer comprising a tap changer. The transformer has at least two magnetically coupled windings and a tap changer comprising i...  
WO/2018/031766A1
An apparatus for applying a magnetic pressure to a work piece includes an inductor configured to be disposed in proximity to the work piece and a controller electrically connected to the inductor and configured to control a supply of ele...  
WO/2017/201265A1
Unique systems, methods, techniques and apparatuses for a ZVT ZCT resonant converter with a variable resonant tank are disclosed. One exemplary embodiment is a system comprising a bidirectional resonant converter comprising an input/outp...  
WO/2017/192707A1
A voltage regulator comprising a tap selector switch, a switching module and a switching module controller. The tap selector can comprise stationary contacts and movable contacts which can be adjusted for regulating the voltage between a...  
WO/2017/186429A1
In order to provide an electrical device (1) for connection to a high-voltage supply system, having a housing (2) which can be filled with a cooling liquid, having a core (3) which is arranged in the housing (3) and is composed of a magn...  
WO/2017/181960A1
A lightning protection on-load regulated-capacity transformer, and an on-load regulated-capacity switch. The on-load regulated-capacity transformer comprises a low-voltage winding, a high-voltage winding, and an on-load regulated-capacit...  
WO/2017/107244A1
A thyristor-assisted arc-extinguishing hybrid on-load tap switch. The switch comprises a main current loop and a thyristor module connected to the main current loop in parallel. The main current loop comprises a first contact switch, a m...  
WO/2017/102174A1
The invention relates to a controllable local network transformer, comprising at least one high-voltage coil on a high-voltage side, at least one low-voltage coil on a low-voltage side, a first on-load tap changer for the low-voltage sid...  
WO/2017/103296A1
The invention relates to a solid-state automatic on-load voltage regulator which allows switching between the different taps of a transformer by means of purely electronic devices, dispensing with all types of movable part, comprising a ...  
WO/2017/084634A1
An on-load voltage regulation tapping switch of a transformer is composed of a tapping switch unit and a switch control circuit. The tapping switch unit is composed of two relay switch contacts (K1, K2) and corresponding contact protecti...  
WO/2017/036496A1
A switch (10) for a switch device (11), in particular a continuous main switch or disconnecting switch for a load transfer switch of an on-load tap changer (12) comprises: a discharge contact (13); a primary fixed contact (14); a seconda...  
WO/2017/015378A1
Magnetic flux valves can be used in electromagnetic (EM) power converters to electronically control output signals of the EM power converters. An input signal is provided to an EM power converter that includes two or more core sections i...  
WO/2017/007038A1
A device for stabilizing the current has a core whose ratio of the sectional area of the second leg (S2) to the sectional area of the first leg (SI) is within the range of 0.6-0.95 and a compensating winding wound around the first leg of...  
WO/2016/207832A1
The invention relates to a electrical/electronic apparatus, without dielectric coolants or oils, which is used to power electric motors and which alters the frequency, voltage, current and power parameters of the electric signals. The ap...  
WO/2016/205903A1
These may be applied monophasically to medium-voltage three-phase electric networks and to low-voltage electric networks without coolant oil, close to consumers, operation being possible with only one motor for actuating the contacts of ...  
WO/2016/190418A1
Provided is a tap changer which is compact and for which the maintenance interval is prolonged. The tap changer comprises: a first terminal T1 and a second terminal T2 that are connected to a tap winding 1 of a stationary induction elect...  
WO/2016/190319A1
Provided is a current limiting circuit inductor which, despite being small in size, can provide a current limiting effect by maintaining a large inductance when an instantaneous large current flows. In particular, the current limiting ci...  
WO/2016/169826A1
A load stepping switch (1) for uninterrupted changeover between winding taps (n, n+1) on a control winding (20) comprises – a changeover switch (2) that comprises a first, second and third changeover contact (2.1, 2.2, 2.3) and can ado...  
WO/2016/170211A1
The present invention relates to an on-load tap changer device, which allows the automatic regulation of voltage in the secondary winding (28) of high-voltage electrical equipment (26, 65) by selecting the number of turns of the primary ...  
WO/2016/155944A1
The invention relates to a circuit arrangement for reducing a magnetic unidirectional flux component in the core (13) of a transformer, comprising: - a measuring device (12) which provides a sensor signal (10) corresponding to the magnet...  
WO/2016/149154A3
Create soft transition in selected topologies by preserving leakage inductance energy (ELI) during dead time (Td). Using several techniques to supplement energy required to discharge parasitic capacitance (Cp) of primary switchers and ob...  
WO/2016/141614A1
A saturable reactor having a simple structure comprises a closed-loop iron core (3). Coils L1 and L2 are respectively disposed on two iron core limbs of the closed-loop iron core, and the quantities of the turns per coil are the same. Do...  
WO/2016/137971A1
Auto-balancing transformers are disclosed for balancing a multi-phase electrical system by varying the degree of electromagnetic coupling between primary and secondary windings. The auto-balancing transformer includes a movable armature ...  
WO/2016/135003A1
The invention relates to a method for changing the active number of turns of a control winding (12) in an electric system (10). The control winding is coupled to an AC voltage network for a specified period duration T, is designed for a ...  
WO/2016/131887A1
The invention relates to a device (100) for detecting an electrical disruption generated by a tap changer (102) in an electrical path between an energy supply network (104) and an electrical end user device (106, 120), wherein the device...  
WO/2016/130511A1
An electric power system including an on-load tap changing (OLTC) transformer is provided. The OLTC transformer includes a primary winding and a secondary winding. A portion of the at least one primary winding and at least one of the sec...  
WO/2016/120563A1
The present invention relates to a device (3) for dynamically adjusting voltage, intended to equip electrical networks comprising an electrical network of first voltage (1) and an electrical network of second voltage (2), these networks ...  
WO/2016/110013A1
A magnetically-controlled isolated multifunctional transformer (5), comprising a magnetically-controlled saturable reactor, wherein primary coils (L1, L2) and secondary coils (L3, L4) are provided on the magnetically-controlled saturable...  
WO/2016/106931A1
A permanent magnet drive on-load tap-changing switch comprising a changing switch circuit. The changing switch circuit comprises an odd-numbered tap-changing circuit and an even-numbered tap-changing circuit that are structurally identic...  
WO/2016/106916A1
A permanent magnet on-load tap-changing switch comprising a changing switch circuit and a high-speed mechanism. The changing switch circuit comprises an odd-numbered tap-changing circuit and an even-numbered tap-changing circuit that are...  
WO/2016/106918A1
A permanent magnet drive on-load tap-changing switch comprising a changing switch circuit. The changing switch circuit comprises an odd-numbered tap-changing circuit and an even-numbered tap-changing circuit that are structurally identic...  
WO/2016/106928A1
A permanent magnet drive on-load tap-changing switch comprising a changing switch circuit. The changing switch circuit comprises an odd-numbered tap-changing circuit and an even-numbered tap-changing circuit. The tap-changing circuits ar...  
WO/2016/106920A1
A permanent magnet drive on-load tap-changing switch comprising a changing switch circuit. The changing switch circuit comprises an odd-numbered tap-changing circuit and an even-numbered tap-changing circuit that are structurally identic...  
WO/2016/091123A1
The present invention relates to a high-capacity three-phase combined type phase-shift transformer, comprising: three single-phase transformers, which are respectively used as a phase A, a phase B and a phase C and are combined with one ...  
WO/2016/086828A1
A constant magnetic flux voltage regulating structure of ultrahigh voltage self-coupling power transformer, comprising a main transformer body and a voltage regulating transformer body, the main transformer body comprising a series windi...  
WO/2016/082704A1
The present invention relates to an on-load voltage regulation tap switch for a transformer, comprising a main switch group, a switch contact protection branch and a switch control circuit, wherein the main switch group comprises a plura...  
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/2015/195064A1
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...  

Matches 1 - 50 out of 6,505