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Patent Searching and Data


Matches 1 - 50 out of 6,675

Document Document Title
WO/2021/001333A1
An electromagnetic induction device (1) comprising: a main tank (3), a magnetic core arranged in the main tank (3), an On-Load Tap Changer, OLTC, comprising: an OLTC tank (5) mounted to the main tank (3), a fine selector (15), a diverter...  
WO/2021/001379A1
The present disclosure relates to an On-Load Tap Changer (OLTC) (1) for a fluid-filled power transformer. The OLTC comprises a barrier (2) which is sealingly arranged to separate an electrically insulating tap changer fluid (3) of the OL...  
WO/2020/260497A1
A multi-phase selector-preselector apparatus (10) for an on-load tap changer comprises an insulation tube (100) enclosing an insulation compartment (110); a preselector (200) disposed along an outer wall of the tube; a selector device (3...  
WO/2020/249391A1
The invention relates to an on-load tap changer (1) for uninterrupted switching between winding taps (N1,...Nj,..., Nn) of a step transformer (2). The on-load tap changer (1) comprises a selector (3) and a load transfer switch (4). The l...  
WO/2020/247135A1
In some examples, a variable inductor device includes a first planar loop comprising a first planar face and a material that supports electromagnetic coupling and a second planar loop comprising a second planar face and a material that s...  
WO/2020/240781A1
A switching relay of a load-tap-changer according to an embodiment comprises: a first tap terminal and a second tap terminal; a valve; a first current-limiting resistor; and a second current-limiting resistor. The first tap terminal and ...  
WO/2020/239849A1
An inductive component (1) comprises a winding (2) and at least one tuning body (4, 4_1, 4_2, 4_n) for adjusting an inductance (L) of the inductive component (1), the tuning body (4, 4_1, 4_2, 4_n) having a ferromagnetic material and at ...  
WO/2020/217109A1
The present invention relates to a traction transformer with a four-limbed core and a plurality of windings. The four limbs of the core are arranged side by side with two main limbs at the center and two side limbs located on the sides o...  
WO/2020/207811A1
The invention relates to a circuit assembly comprising at least one coil assembly (1) with a first coil (2) and a second coil (3), the first coil (2) being connected to a DC voltage side of a rectifier (8) of the circuit assembly (7), an...  
WO/2020/178914A1
An electric operation device for a tap changer according to an embodiment of the present invention has a reception unit, a driving unit, a detection unit, and a derivation unit. The reception unit receives a control command. When the con...  
WO/2020/078599A8
The invention relates to an on-load tap changer (L) for switching over without interruption between winding taps of a tap-changing transformer according to the center tapping principle, wherein the tap-changing transformer comprises a fi...  
WO/2020/152775A1
A limit tap restricting device of an embodiment comprises a feed screw mechanism, a block, and a rotation stopping unit. The feed screw mechanism includes a feed screw shaft which rotates in conjunction with a main drive shaft. The main ...  
WO/2020/153609A1
A variable inductance device and a method for controlling the variable inductance device are disclosed. The variable inductance device comprises: a coupled inductor which is formed by a single core and multiple coils wound thereon; and a...  
WO/2020/126249A1
The invention relates to a device (1) for dynamic load-flow control in a high-voltage network (17), which has at least one phase conductor (16) and at least one first high-voltage terminal (42), each first high-voltage terminal being des...  
WO/2020/108732A1
The invention relates to a device (1) for reactive power compensation in a high voltage network (17) comprising at least one phase conductor (16, 18, 19). The device according to the invention (1) has a high voltage connection (8) for ea...  
WO/2020/078599A1
The invention relates to an on-load tap changer (L) for switching over without interruption between winding taps of a tap-changing transformer according to the center tapping principle, wherein the tap-changing transformer comprises a fi...  
WO/2020/038603A1
An apparatus for a load tap changer includes a first primary winding electrically connected to a first contact, the first contact configured to connect to one of a plurality of taps in a load tap changer; a second contact, the second con...  
WO/2020/036507A1
The invention relates to electrical engineering. A smoothing reactor comprises at least one unit having an induction coil (2) arranged coaxially relative to a rod (1) that is sectioned by non-magnetic gaps, said induction coil (2) having...  
WO/2020/031644A1
A reactor in which a wiring board having formed a main winding and a wiring board having formed a control winding are assembled in layers in a planar core, wherein a magnetic flux density formed by a control current through the control w...  
WO/2020/030445A1
An on-load tap changer (10) for switching without any interruption between winding taps (N1-N5) of a tap-changing transformer (11) according to the centre tap principle comprising: an on-load tap changer (20) having a main branch (40) an...  
WO/2019/234271A1
This document describes an on-load tap-changer device based on solid-state switches for applications that require dynamic voltage regulation. The tap changer of the invention is provided with a central control unit that determines the op...  
WO/2019/228744A1
A transformer, which has a transformer housing, an active part (3), which has at least one transformer core (4) and at least one transformer winding (5), which are arranged inside the transformer housing, and at least one tap changer for...  
WO/2019/228743A1
In order to create a full variable shunt reactor (FVSR) having two magnetically controllable high-voltage throttles (5, 6) which is compact and at the same time can also provide capacitive reactive power, it is proposed that auxiliary wi...  
WO/2019/204963A1
A tap changer assembly of a dry-type transformer. The tap changer assembly includes a first molding including multiple taps, a semi-conductive coating applied to the first molding, a conductive shield provided overtop some of the semi-co...  
WO/2019/197014A1
The invention relates to a device (1) for reactive power compensation in a high-voltage network (17) comprising at least one phase conductor (16, 18, 19). A high-voltage connection (8) is provided for each phase of the high-voltage netwo...  
WO/2019/186580A1
A Variable Automatic Electrical Transformer, capable of working under different voltages used for stabilizers, regulators and isolators is provided. It is provided with the state of art sensing technology for online monitoring of the pha...  
WO/2019/182470A1
A static electric generator relates to devices for generating electrical energy without movable mechanical parts and can be used as a power source for electronic devices. The generator consists of two permanent magnets (1) which are inte...  
WO/2019/177005A1
Provided are a tap changing device with which it is possible to perform tap changing at high speed and quietly, while effectively suppressing an arc current generated between contacts during a tap change, and an on-load tap changing pole...  
WO/2019/170417A1
The invention relates to an on-load tap changer (10), comprising – a first selector rod (21) and a second selector rod (25); – a load transfer switch rod (51); – a switching means (55); – a gear mechanism (19); wherein – the fi...  
WO/2019/126661A1
In some embodiments, a transmit coil configuration is provided. A coil configuration for a wireless transmitter according to some embodiments can include a plurality of turns coupled between a first tap coupled to an innermost turn and a...  
WO/2019/104218A1
A tunable inductor has a first magnetic core and a second magnetic core wound with a direct current (DC) winding and an alternating current (AC) winding. A first portion of the AC winding is wound around a first portion of the first magn...  
WO/2019/101460A1
The invention relates to a winding unit (10) for connecting to a high-voltage network. The winding unit has a winding (12), which is embedded in a solid insulating body (11), and a first main connection terminal (19), which is connected ...  
WO/2019/096538A1
The present invention relates to a transformer type supply circuit (1) with adjustable power output, enabling supplying power in particular to microwave ovens. In its most basic form, the supply circuit (1) is characterized by a transfor...  
WO/2019/088817A1
The invention relates to an energy-optimising apparatus which comprises a magnetic circuit formed by a coil and a ferromagnetic core, which allows an acceleration of loads by means of which said loads can be reintroduced into the network...  
WO/2019/090358A1
Various examples are provided related to mixed material magnetic cores, which can be utilized for shielding of eddy current induced excess losses. In one example, a magnetic core includes a ribbon core and leakage prevention or redirecti...  
WO/2019/087219A1
A voltage stabiliser (1) is disclosed, comprising two fixed windings (4, 5) and a mobile and in short-circuit one (6), such as a voltage regulator. Within each of the two fixed windings (4, 5) another winding (7, 8) is introduced, said t...  
WO/2019/064003A1
An on-load tap-changer switching mechanism comprises an annular cam plate (21) defining a radially-outward-facing cam surface (24) having a plurality of raised portions (25). A switching assembly (10) is disposed at least partly within, ...  
WO/2019/053088A1
The invention relates to a testing system for carrying out a high-voltage test on a test object (PR), comprising a test throttle (PD) with an electromagnetically adjustable inductance in order to form a resonant circuit together with the...  
WO/2019/042716A1
The invention relates to an assembly (1) for connection to a high-voltage system having multiple single-phase transformers (2, 3, 4) which each have a transformer tank (5) which is filled with a fluid and in which a core (21) having at l...  
WO/2019/009869A1
The invention relates to electrical engineering and can be used, for example, as a shunt reactor for regulating voltage and reactive power in high-voltage transmission lines. The technical result is the possibility of controlled low-volt...  
WO/2019/004897A1
Described is, among other things,a variable shunt reactor(100) comprising at least three cores (101, 102, 103, 104) and at least two AC windings (106, 108) wound around at least a respective first core and a second core. The variable shu...  
WO/2018/226823A1
A fluid treatment apparatus is constructed from at least one electrochemical cell including a bipolar ion exchange membrane and having a single output orifice to deliver treated fluid. The apparatus may employ a power supply transformer ...  
WO/2018/200506A1
Unique systems, methods, techniques and apparatuses of a modular power transformer are disclosed. One exemplary embodiment is a matrix power transformer including a plurality of block assemblies each including a plurality of transformer ...  
WO/2018/148811A4
The selector contains an upper metal flange (1) with a body (6) and a lower metal flange (2) with cage-like segments (3) made of insulating material. On the segments there are mounted odd (4) and even (5) stationary contact elements. In ...  
WO/2018/148812A4
The spring-energy accumulator is mounted on a carrying flange (1). It has a left lever (7) and a right lever (9) mounted on two pivots (2, 3) fixed in the carrying flange (1). Between the ends (10, 11) of the two Severs (7, 9) are mounte...  
WO/2018/148811A1
The selector contains an upper metal flange (1) with a body (6) and a lower metal flange (2) with cage-like segments (3) made of insulating material. On the segments there are mounted odd (4) and even (5) stationary contact elements. In ...  
WO/2018/148810A1
The selector comprises an upper mange (11) and a lower flange (12) connected to insulating segments (13) cut-out of an insulating cylinder. The three phases (A, B, C) are located in tiers, where on the segments (13, 16) are mounted an (1...  
WO/2018/148812A1
The spring-energy accumulator is mounted on a carrying flange (1). It has a left lever (7) and a right lever (9) mounted on two pivots (2, 3) fixed in the carrying flange (1). Between the ends (10, 11) of the two Severs (7, 9) are mounte...  
WO/2018/095703A1
The present disclosure relates to a method of monitoring switching by an on-load tap changer (OLTC) (1) from a first contact (3a) to a second contact (3b) of a transformer winding (2). The method comprises measuring a voltage of the tran...  
WO/2018/073966A1
Provided is an on-load tap changing device with high durability performance that restrains arc at the time of switching and reduces deterioration of a switch thereof. The device is provided with a first switch part 2 connected to a first...  

Matches 1 - 50 out of 6,675