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Matches 201 - 250 out of 5,187

Document Document Title
WO/2013/160089A1
The invention relates to an on-load tap changer for switching between different winding taps of a tap-changing transformer without interruption. The aim of the invention is to provide an on-load tap changer with vacuum switching tubes, w...  
WO/2013/150811A1
The present invention enables an inductance value to be easily changed even when handling a large amount of high-frequency power. This variable inductor is equipped with: a first stationary section that is made of a conductor extending i...  
WO/2013/142919A1
Described herein are fault current limiters including an input terminal for electrically connecting to a power source that provides an AC load current, and an output terminal for electrically connecting with a load circuit that draws the...  
WO/2013/131663A1
The invention relates to an arrangement of an air-core inductor (10) and a changeover switch (12), in particular a changeover means or a load-stage changeover switch, wherein the air-core inductor (10) has windings (20). In the arrangeme...  
WO/2013/131664A1
The invention relates to a tap switch for voltage regulation with semiconductor switching elements on a regulating transformer having a regulating winding. The tap switch is of modular design, wherein each module comprises in each case a...  
WO/2013/127835A1
The invention relates to a voltage converting device comprising at least one transformer (12) which is provided for supplying an output voltage (Uout) on the basis of an input voltage (Uin), which comprises an input-side winding unit (30...  
WO/2013/124090A1
The invention relates to a stepping switch, which is provided with a preselector, for interruption-free control on a control transformer, wherein the control transformer has one or more main windings and a stepped winding, wherein the st...  
WO/2013/120642A1
The invention relates to a transformer with an on-load tap-changing device, wherein optionally the primary or secondary side can be regulated by means of the on-load tap-changing device, and wherein, on the side of the transformer to be ...  
WO/2013/111430A1
In this non-contact power supply system, inductance can be easily adjusted. Power is supplied in a non-contact manner to a pickup coil of a carriage from a power supply line that is provided along a traveling path. A variable inductor, w...  
WO/2013/100429A1
The present invention provides a fault current limiter which can reduce an abnormal current, such as a fault current, in a power system through the magnetic turn-off which increases the reactance of an electric circuit by changing the ma...  
WO/2013/082668A1
Described herein are fault current limiters including an input terminal for electrically connecting to a power source that provides a load current, and an output terminal for electrically connecting with a load circuit that draws the loa...  
WO/2013/080298A1
A transformer (50) is provided with: an iron core (10); a primary side winding (3) wound around the iron core (10); a secondary side winding (4) wound around the iron core (10) aligned with the primary side winding (3); and a differentia...  
WO/2013/048348A1
The tester and the procedure of testing to determine the quality of magnetic circuits is based on pulse excitation and hysteresis control of primary current. The magnetic characteristic of the tested transformer iron core is evaluated on...  
WO/2013/048908A1
A switchable transformer architecture is disclosed. The switchable transformer includes a primary winding, a secondary winding, and a tertiary winding, in which either the secondary winding or the tertiary winding establish a signal path...  
WO/2013/042685A1
Provided are an energy-storing mechanism having a forced supply mechanism and achieving a reduction in space, and an on-load tap changing device comprising the energy-storing mechanism. An energy-storing mechanism has a spring (26), a wi...  
WO/2013/030139A1
The invention relates to a dry-type transformer comprising a winding (101) with a tapping zone (110), the tapping zone (110) being the zone wherein at least two connections can be made, allowing to change the number of turns of the windi...  
WO/2013/030571A1
A fault current limiter (FCL) includes at least one magnetisable core member and at least one AC magnetomotive force source configured to generate a varying magnetic flux in at least a portion of the at least one magnetisable core member...  
WO/2013/029688A1
A current limiter (10) comprises at least one core element (12), the or each core element (12) include anisotropic magnetic material, and at least one electrically conductive wire (14) being wound to define a coil (16) enclosing a portio...  
WO/2013/025701A1
Tap covers and projections for an electrical device are provided. The tap projections have bosses or taps raised from a surface of the tap projection and encapsulated with a resin except for an outer surface of the bosses or taps. The ta...  
WO/2013/018107A1
An electrical energy transformation assembly (1 ) supplied by a power source (A) for appropriately supplying power to a load (L) that comprises a primary winding (2) connected to the power source (A) and electromagnetically coupled to a ...  
WO/2013/018108A1
An energy-saving device (1) inserted between a three-phase power supply (A) and a three-phase load (L), comprising a three-phase electrical transformer (10), each phase of which includes a transformation assembly (1 1) with a primary win...  
WO/2013/018072A2
An impedance emulator device (5-8, 15) which is variable in a controlled manner comprises an inductor (L) connected between a first and a second terminal (2, T), an ordered array (5) of solid-state electronic switches (Ql, Q2), connected...  
WO/2013/010699A1
The invention relates to a method for load transfer and to a corresponding load transfer switch for a stepping switch. The invention is based on the concept of resolving the previously complex switching sequence during load transfer and ...  
WO/2013/000608A1
The present invention relates to a tap changer comprising a diverter switch which has at least two branches, wherein each branch comprises: a series connection of a main interrupter and a transition interrupter; and a transition resistor...  
WO/2012/175141A1
A three-phase on-load tap changer (40) comprises a selector (42) which has first, second, and third pairs of contact sets. Each pair of contact sets corresponds to a respective phase. One contact set within a given pair is to carry a loa...  
WO/2012/171791A1
The invention relates to a gearbox for a tap changer. The gearbox has an input drive shaft (1) arranged to be connected to a motor. The gearbox also has a diverter switch drive output (3) with a diverter shaft (31). The diverter switch d...  
WO/2012/167330A1
A saturated core fault current limiter including: at least one AC coil wrapped around a high magnetic permeability core; an high magnetic permeability core having an elongated form; a series of permanent magnets adjacent the high magneti...  
WO/2012/167329A1
A fault current limiter disposed within an external casing, and of the type having a core biased magnetically towards saturation during normal operation and an AC current carrying coil around the core, wherein the core is electrically is...  
WO/2012/167331A1
A fault current limiter of the type having at least one elongated core biased magnetically towards saturation by means of a surrounding magnetic field, and an AC coil surrounding the core, the fault current limiter including: an elongate...  
WO/2012/159691A1
The invention relates to a supplementary transformer winding (10, 60), comprising a first (12, 72), second (14, 74) and third (16, 64) winding module, each having at least one winding segment (18, 20, 22) that has at least one first (18)...  
WO/2012/139167A1
A three phase fault current Iimiter (FCL 6) has three spaced apart input terminals (10) for electrically connecting to respective terminals (5) of a transformer (2). Three output terminals (1 1 ) electrically connect FCL (6) with a load ...  
WO/2012/139187A1
The present invention relates to a dry distribution transformer comprising a housing (1'), a coil (200), a sealed compartment (100) and a taps panel (1 10) associated to the coil (200). The taps panel (110) has an electrostatic shield (1...  
WO/2012/136423A1
The invention relates to a tap changer for the interruption-free switchover between winding taps of a tap-changing transformer. Furthermore, the present invention relates to a novel vacuum interrupter which is particularly suitable for s...  
WO/2012/136302A1
The invention is related to a fluid insulated high voltage coil (12, 14, 16, 66), comprising a closed tank (22) for an insulation fluid (30) and a high voltage coil arranged therein with at least two taps (18, 54). An insulation tube (24...  
WO/2012/133535A1
Provided is an energy-storing mechanism with a forcing mechanism which is inexpensive and simple and in which load torque is suppressed and stable operation is possible. Also provided is an on-load tap changing device provided with same....  
WO/2012/126886A1
The invention relates to a current limiter (10) adapted to be connected in series between an AC current source (S) and a load (C). The limiter comprises a magnetic circuit (2) including a core (20) and at least one inductive coil (S) wou...  
WO/2012/116946A1
An inductor apparatus (2) includes an inductor winding (3), a core (4) defining a magnetic circuit (1) for a magnetic flux generated by a current flowing through the inductor winding (3), at least one permanent magnet (5) magnetically bi...  
WO/2012/103587A1
In a fault current limiter (FCL) of a saturated core type having at least one coil wound around a high permeability material, a method of suppressing the time derivative of the fault current at the zero current point, the method includin...  
WO/2012/089717A1
The invention relates to a transformer comprising at least one secondary (5) having windings (5.1, 5.2, 5.3), a pair of wound magnetic transducers (6.1, 6.4), one of the transducers (6.1) including one or more first conductive bars (10.1...  
WO/2012/072181A1
The invention relates to a tap changer for switching over between winding taps of a tap transformer without interruption, wherein two load branches are provided for each phase which is to be switched and each load branch has a vacuum swi...  
WO/2012/070761A1
The present invention relates to a tap position indicator, and more particularly, to a tap position indictor for directly receiving the specifications of an on-load tap changer (OLTC) from a worker working in the field, and for setting t...  
WO/2012/062408A1
The invention relates to an on-load tap changer for the uninterrupted changeover between two winding taps of a tap-changing transformer, wherein two load branches are provided such that the one load branch is electrically connected to th...  
WO/2012/055502A1
The invention relates to a tap changer for low-power switching between different winding taps of a step transformer. The general inventive concept consists in using a planetary stepping gear system that is further developed for use in a ...  
WO/2012/041367A1
The invention relates to an arrangement for reducing the unidirectional flux fraction in the core of a transformer, comprising: - a compensation winding (3) that is magnetically coupled to the core (4) of the transformer, - a DC generato...  
WO/2012/038030A1
The invention relates to an energy store for an on-load tap changer. The general inventive concept consists in specifying an energy store for an on-load tap changer, in which a first gearwheel (2), which is in the form of a sun wheel, is...  
WO/2012/034653A1
The invention relates to a tap changer for switching among winding taps of a step transformer without interruption, wherein two load branches are provided for each phase to be switched and each load branch has a vacuum switching contact ...  
WO/2012/030428A1
A switch comprising a plurality of transformers and a path comprising a number of wires. Each of the plurality of transformers comprises a core and a control winding. The path is configured to connect the plurality of transformers to eac...  
WO/2012/022397A1
The invention relates to a tap changer for switching among winding taps of a step transformer without interruption, said step transformer having an oil-filled transformer tank, wherein the tap changer does not have a separate housing or ...  
WO/2012/022396A1
The invention relates to an on-load tap changer for switching among different winding taps of a step transformer without interruption. The general inventive concept lies in eliminating the previously static design of the on-load tap chan...  
WO/2012/019514A1
A high voltage direct current (HVDC) converter transformer and method for on-load tap change (OLTC) switch connection thereof, wherein said HVDC converter transformer comprises DC and AC sides; the AC side comprises an AC side main coil,...  

Matches 201 - 250 out of 5,187