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JP2023525029A |
[wrap up] A transformer (100, 200, 300, 500) includes a magnetic core (102) having multiple limbs (104-106). The transformer also includes a direct current (DC) bias winding (110) wrapped around one predetermined limb. The transformer fu...
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JP2023523184A |
The present invention comprises a first sensor 3 for measuring the current in the first power line 4 of the on-load tap changer 2, a breaking element 5, a controller 6 and a current limiting element 7, said load It relates to an installa...
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JP7280861B2 |
To obtain a load tap switcher having a configuration that can easily confirm the soundness of a tap switcher using a torque sensor at a relatively low cost and in a short time.In a load tap switching device, in an actual operation mode, ...
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JP7279489B2 |
To provide a measurement device and a measurement method for an electric power transformer, with which it is possible to shorten the power outage work time for frequency response analysis.The measurement device comprises: a variable indu...
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JP2023071405A |
To provide an electrically-driven handling device of an on-load tap changer with excellent workability.An electrically-driven handling device of an on-load tap changer contains: a mechanism part; an outer door; an inner door; a substrate...
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JP7279264B2 |
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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JP3241817U |
An object of the present invention is to provide an oil-filled electrical device that uses vegetable oil as an insulating oil and can suppress an increase in product price. Vegetable oil as insulating oil is filled in a tank of an oil-fi...
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JP7255848B2 |
To provide a power accumulation mechanism which performs a switching operation of a changeover switch with relatively small drive power, and a transformation device with the power accumulation mechanism.A power accumulation mechanism 40 ...
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JP2023511548A |
[wrap up] A magnetic component includes a main magnetic core, a power winding coupled to the main magnetic core, and a variable reluctance magnetic core element disposed within the magnetic flux path of the main magnetic core. A variable...
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JP7242038B2 |
To provide a compact changeover switch and a transformation device including an on-load tap switcher with the changeover switch.A changeover switch 31 comprises: multiple switches 31U1-31U3, 31V1-31V3 and 31W1-31W3 each of which includes...
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JP7240354B2 |
To provide a static guidance device capable of suppressing an increase of the dimension of at least the diameter direction of the connection between a tap wire and a high voltage conductor.In a connection part between a tap wire 25 and a...
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JP2023504439A |
[Theme] A system and method are described for the use of transformers to achieve uniformity in substrate processing. One system includes a primary winding having a first end and a second end. The first end is coupled to the output of the...
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JP7212602B2 |
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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JP2023501214A |
A selector 1 for an on-load tap changer, comprising a fine-tuning selector 2 with at least one selector arm 21, 22, and a pre-selector 4, the pre-selector 4 providing a fine-tuning It is characterized by being operated by at least one of...
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JP2023501215A |
An on-load tap changer 1 for performing uninterrupted load switching between different winding taps of a tapped transformer 30 comprising an on-load tap changer plate 2, a selector 5 and a load changer 6. , these selectors 5 and load cha...
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JP2023500074A |
Winding tap N of tapped transformer 11,...,NJ.,...,NN.an on-load tap changer 10 for uninterrupted switching between the selected winding tap NJ.at least one selector unit 30 for performing pre-selection in a no-power state to the winding...
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JP2022554289A |
An on-load tap changer 1 for performing load switching without power failure, comprising a first module 20 with a first module shaft 22 and a second module 40 with a second module shaft 42 The first module shaft 22 drives the first modul...
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JP7181304B2 |
A switching element for a tap changer, the switching element having a vacuum interrupter that includes a movable contact, a plunger connected with the movable contact, and a housing, in the interior of which, the movable contact is arran...
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JP7179566B2 |
To provide an autotransformer with a phase adjuster, capable of adjusting a phase angle over a wider adjustment range.An autotransformer with a phase adjuster of an embodiment has a serial winding, a shunt winding, a phase adjustment tap...
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JP2022163388A |
To provide a control method of a variable inductor capable of controlling self-inductance against arbitrary current and suppressing increase in body size.In a control method of a variable inductor 10, the variable inductor 10 includes a ...
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JP7160596B2 |
To provide a manufacturing method of power transformer capable of shortening operation time at a high place while improving safety when assembling the power transformer, and to provide an assembly template used when assembling the power ...
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JP7160595B2 |
To provide a manufacturing method of power transformer capable of shortening operation time at a high place while improving safety when assembling the power transformer, and to provide an assembly template used when assembling the power ...
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JP7137400B2 |
To provide a protective covering for a tap switcher, capable of confirming a tap position without detachment.A protective covering 1 includes a main body part 1a covering all of a handle 8. The main body part 1a is provided with a window...
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JP7136769B2 |
An on-load tap changer includes: a fine selector, including: fixed contacts having a commutation contact, connectable with a main winding, and tap contacts, connectable with an associated tap of regulating windings; first and second arms...
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JP7131407B2 |
To provide a transformer capable of adjusting leakage inductance easily.A transformer includes a primary winding 14, a secondary winding 15, a main magnetic core 11 through which main magnetic flux, linking with the primary winding 14 an...
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JP2022536704A |
The present invention provides multiple winding taps N of the tap transformer 2.1,...,NJ.,...,NN.It relates to an on-load tap changer 1 for switching between without power failure. The on-load tap changer 1 has one selector 3 and one on-...
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JP7119517B2 |
To provide a compact power distribution unit that simultaneously distributes power of several kW or more to multiple loads with ferrite as a core.In a power distribution unit that distributes power supplied from a primary coil to loads c...
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JP7119226B2 |
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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JP7117250B2 |
To provide an energy accumulation device capable of quickly performing a switch in a small size.An energy accumulation device of an embodiment is provided to a load tap switch changer for switching a power transformer at a loading. The e...
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JP2022533929A |
A method for switching the operating means 20 is disclosed. The operating means 20 is at least one first switching means 17 which can be a load tap switch and / or at least one second switching means 18 which can be a compound changeover...
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JP2022533933A |
A method of performing switching of the first switching means 17 of the operating means 20 or at least one second switching means 18, 19 is a step of receiving the switching signal by the control unit 10 and the control unit. 10 is used ...
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JP2022533594A |
To drive a switch, particularly a tap changer at load, a load switch, a selector, a double inverting switch, a inverting switch, a switching selector, a circuit breaker, a load switch or a disconnector. Provides an improved concept that ...
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JP2022533325A |
A method for performing switching of the switch 17 and a drive system 3 for the switch 17 for performing the switching are disclosed. Switching from the switching position SJ at that time of the switching device 17 to the target switchin...
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JP2022532612A |
To provide an improved concept for enhancing the flexibility of operation of a tap switching device under load and safety at the time of tap switching. In the method for executing switching of a tap switcher 8 at load, the drive system i...
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JP7095185B2 |
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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JP7091060B2 |
Embodiments of the disclosure pertain to a voltage regulator system (600) having a voltage regulation controller (115) and a transformer assembly (650). The transformer assembly (650) includes a coil winding (625), a multi-contact tap ar...
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JP7089370B2 |
To provide a tap changer that can enhance a degree of freedom of arrangement of an operator to make it easy to operate the operator and confirm a tap position, and a stationary induction apparatus with the same.A tap changer 6 according ...
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JP2022079254A |
To provide a tap switcher at load capable of preventing vibration of an oscillating crank unit.A tap switcher at load 100 includes an input shaft O1, an output shaft O2, an input crank unit 1, a link unit 2, an oscillating crank unit 3, ...
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JP7066620B2 |
A selector for an on-load tap changer with a diverter switch includes: an insulating plate with a first side and a second side, the second side opposite the first side; a plurality of fixed contacts, which extend from the first side thro...
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JP2022068647A |
To provide a joint structure capable of exchanging a gasket from the outside of a sealed container.A joint structure (10) comprises: a shaft member (11) which is inserted inside from an opening of a sealed container; a pipe member (12) i...
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JP7063591B2 |
To provide a switchgear capable of keeping a contact between contacts firmly even under the action of an external force.A switchgear includes a movable contact and two fixed contacts, and the movable contact includes a biasing member tha...
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JP7045385B2 |
A method of controlling at least one switching module having commutation cells which are associated with a regulating winding of a regulating transformer, the commutation cells including: a first and second switching element each having ...
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JP7039860B2 |
To provide a contact failure detector of magnetic contactor capable of detecting in which magnetic contactor a problem is occurring, inexpensively and easily, upon occurrence of a problem in an on-load tap changing transformer.An electro...
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JP7021374B2 |
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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JP7021393B2 |
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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JP2022019310A |
To provide a load tap changer and a voltage regulation device that can short-circuit both ends of a primary winding of a series transformer at any time regardless of the tap change state.A load tap changer (3a) includes a changeover swit...
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JP2022007345A |
To suppress the induced electromotive force due to a current change in a transformer, control the impedance on the order of microseconds when a system is short-circuited, and suppresses a short-circuit current when the system is short-ci...
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JP2022003612A |
To improve the insulation performance of a switching switch without significantly changing the conventional structure.A plurality of notch grooves are formed radially on the outer periphery of an insulating substrate of a switching switc...
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JP2022002277A |
To provide an on-load tap changing transformer capable of suppressing an overvoltage caused by internal resonance, and an operation method therefor.An on-load tap changing transformer comprises: a main winding 30; a coarse tap winding 40...
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JP2021170569A |
To provide a magnetic flux control type variable transformer which has a small size and is capable of continuously changing a secondary voltage while receiving less influence of a leakage magnetic flux and having small control loss.A mag...
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