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WO/2021/240672A1 |
A switching mechanism for a tap selector of an on-load tap changer according to one embodiment of the present invention comprises a fixed part, a movable part, a biasing member, and a guide. The fixed part has a fixed contact point. The ...
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WO/2021/240674A1 |
A tap selector of an on-load tap changer according to an embodiment of the present invention has a stationary contact and a stationary plate. A plurality of the stationary contacts are provided. The stationary plate has a ring shape. The...
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WO/2021/229736A1 |
A charging mechanism for an on-load tap changer according to an embodiment comprises a drive arm, a toggle spring mechanism, and a Geneva mechanism. The drive arm is rotated by external force. The toggle spring mechanism is charged as an...
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WO/2021/179032A1 |
An electric power converter for a photovoltaic energy source, including: an inverter to receive a dynamically changing DC signal generated by the photovoltaic energy source and to generate a corresponding dynamically changing AC signal h...
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WO/2021/170340A1 |
The invention relates to a switch for an on-load tap changer of a tap-changing transformer, comprising: a discharge contact; a primary fixed contact; and at least one contact unit, which has a movable contact, a first erosion contact and...
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WO/2021/146047A1 |
A magnetic component includes a main magnetic core, a power winding coupled to the main magnetic core, a variable reluctance core element arranged in a flux path of the main magnetic core and including a saturable magnetic core and a con...
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WO/2021/122556A1 |
An inductive power device with variable active winding size, comprises first circuitry, multiple winding segments (3.1, 3.2, 3.3, 3.4) and switching circuitry (4) operable to connect selectable combinations of the winding segments serial...
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WO/2021/121598A1 |
The aim of the invention is to provide a device (1) for connecting to a high-voltage grid which carries an alternating voltage and which has a plurality of phases, said device comprising: an active part (7), which has at least one phase ...
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WO/2021/106065A1 |
An on-load tap changer according to an embodiment comprises: a tap selector; a changeover switch; an oil tank body; an oil tank lid; a flange; a relay portion; and a drive shaft. The oil tank body has a tank in which the changeover switc...
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WO/2021/105369A1 |
An electrical power converter with segmented windings is provided. Comprises a transformer or autotransformer including a magnetic core (3) and at least a primary winding (51) and at least a secondary winding (52) arranged around the mag...
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WO/2021/106066A1 |
An on-load tap changer according to an embodiment comprises a changeover switch and a container. The changeover switch performs a winding tap changing operation. The container contains the changeover switch. The container has a bottom po...
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WO/2021/099022A1 |
On-load tap changer (1) for changing over between different winding taps of a tap-changing transformer (30) without interruption, comprising: - an on-load tap changer plate (2), - a selector (5), - a load changeover switch (6), wherein: ...
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WO/2021/099877A1 |
A transformer system includes conductive windings extending around a magnetic core and impedance-varying windings extending around the magnetic core. The impedance-varying windings include positive windings and negative windings. The con...
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WO/2021/070437A1 |
The present invention provides a monitoring and diagnostic device capable of monitoring and diagnosing the states of the core and windings contained in a transformer, without using an additional active device. A transformer monitoring an...
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WO/2021/058272A1 |
The invention relates to a resistor assembly (10) for a tap changer (1), having at least one resistor element (20) which is held by at least two resistor holders (30). The resistor assembly (10) comprises: a baseplate (11) with at least ...
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WO/2021/048352A1 |
A transformer apparatus for an electrical power transformation system is provided. The transformer apparatus comprises three outer transformer limbs, an inner transformer limb a transfer star, and first and second connection portions. Th...
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WO/2021/028058A1 |
The embodiments herein relate to a system (100) for controlling a 3-phase transformer device (101, T1, T2, T3). The system (100) comprises the 3-phase transformer device (101, T1, T2, T3) which comprises a primary side and an adjustable ...
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WO/2021/028948A1 |
Disclosed herein is a system for detecting incomplete operation of diverter in an on-load tap changing (OLTC) Transformer. The system comprises of OLTC Transformer with separate selector and diverter sections, mechanically actuated Magne...
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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...
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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...
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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...
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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...
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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...
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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 ...
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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 ...
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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...
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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...
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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...
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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 ...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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 ...
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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...
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