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Matches 151 - 200 out of 6,702

Document Document Title
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...  
WO/2013/170404A1
A switching structure of moving contacts and fixed contacts of a tap selector comprises an insulating switch base plate, at least two fixed contacts (101, 102, 103; 401.1, 401.2, …, 401.9), at least one rotary shaft (300; 405), and at ...  
WO/2013/167372A1
A secondary distribution network transformer for supplying power to the secondary distribution network is specified, having: - an active part with primary and secondary windings for transforming a primary medium voltage into a secondary ...  
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/2012/126884A3
Voltage regulator (10), suitable for being connected in series between on the one hand an AC source (S) and on the other hand a load (C), comprising a magnetic circuit (2) comprising a first core (21) and a second core (22), at least one...  
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/2012/126860A3
A controller for a transformer having a transformation ratio, wherein the transformer has an input configured to receive an AC power source and an output configured to provide an output voltage for a load system. The controller is config...  
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/2012/104232A3
The invention relates to a stepping switch for voltage control, comprising semiconductor switch elements on a variable transformer having associated regulating windings. The stepping switch has a modular design, wherein each module compr...  
WO/2013/014251A3
The invention relates to a switching device (1) for bridging a fault current circuit breaker (21), a first input (2) being connected to a first output (4) by means of a first conductor (6) and a first switching-contact pair (7), and a se...  
WO/2013/018072A3
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/2013/048348A1
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/2012/028839A3
A transformer based voltage optimization apparatus (201) configured for use as a component of an electrical circuit that comprises a load (202) comprises a first transformer arrangement (203) specifically configured with means to transfo...  
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/2011/141081A3
The invention relates to an on-load tap changer for step transformers, which has one main current branch and one auxiliary current branch for each of the two winding taps to be switched. In each main current branch and auxiliary current ...  
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/2011/141076A3
The invention relates to an on-load tap changer for switching among winding taps of a step transformer without interruption. According to the invention, in each auxiliary current branch of the on-load tap changer, which operates with vac...  
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/2012/113641A3
The invention relates to a tap changer for voltage regulation, comprising semiconductor switch units (S1.1,..., S1.6; S2.1,..., S2.6) on a variable transformer having a regulating winding, wherein two parallel load branches (1, 2) are pr...  
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...  

Matches 151 - 200 out of 6,702