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JP4649448B2 |
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JP4646327B2 |
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JP4643225B2 |
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JP2011035162A |
To provide an on-load tap changer capable of improving reliability by a compact and simple structure.A shield ring 15a is installed in a circumferential direction on an inner periphery side of a changeover switch tank 3. The shield ring ...
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JP4627694B2 |
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JP4627695B2 |
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JP4630873B2 |
A variable inductor device comprises a magnetic core with first and second coaxial and concentric cylindrical members 101, 102 formed from magnetic material which are arranged with a high permeability direction and a lower permeability d...
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JP4621167B2 |
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JP4611869B2 |
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JP4611465B2 |
Variable reactances in an impedance-matching box for an RF coil, in a plasma deposition system for depositing a film of sputtered target material on a substrate, can be varied during the deposition process so that the RF coil and substra...
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JP2010283226A |
To detect even fault such as generating an excessive torque right after actuation when determining whether an on-load tap changer is abnormal by observing electric power of an electric driving device.A fault detection system 10 includes ...
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JP2010278273A |
To provide a variable voltage type transformer allowing the voltage of a secondary winding to be steplessly changed by simplifying the structure without needing another power source.This variable voltage type transformer includes: an iro...
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JP4588880B2 |
The invention relates to a tap selector switch with a preselector for uninterrupted switching-over between different winding taps of a tapped transformer. The entire selector is in that case accommodated as a separate assembly in an own ...
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JP2010267957A |
To provide a tap changer facilitating access to a measuring point for measuring a contact sequence in the tap changer. The tap changer 4 includes a cylinder 1 and a shaft 2 that is rotatably arranged inside the cylinder; the cylinder 1 i...
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JP2010263024A |
To provide a tap selector having a roller contact device, which suppresses material cost and processing cost for a current collection contact and maintains contact resistance for a long period even in insulating oil. While the current co...
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JP4583279B2 |
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JP2010258216A |
To improve reliability of a roller contact device by avoiding the situation in which a base portion of a roller shaft collides with a storage hole of a body fixed to an insulating rotary shaft each time a tap is switched.The roller conta...
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JP4558764B2 |
An on-load tap changer attached stationary induction apparatus, including a tank, an electromagnetic induction device which is put, together with a liquid insulating material having a flash point higher than 250 DEG C, in the tank, and a...
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JP2010182069A |
To provide a voltage control device for providing a power (voltage) with high quality to each wiring system connected to the two secondary coil side of a three coil transformer.This voltage control device is provided with: a voltage meas...
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JP4518907B2 |
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JP4518329B2 |
A plasma device including a power source for creating an AC output signal with a matrix transformer between said power source and a series circuit comprising a first lead and a second lead. The matrix transformer including at least two m...
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JP4519545B2 |
The invention relates to a special control for current-controlled inductors which allows inductance to be varied at a considerably faster rate than is the case in the prior art. The control presented in the invention can be employed for ...
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JP4506352B2 |
An ignition coil is constructed of a center core, a primary coil, a secondary coil, and an outer circumferential core. The center core and the outer circumferential core are connected with each other via a first magnetoresistive member o...
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JP4508983B2 |
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JP4498812B2 |
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JP2010141214A |
To provide a contact load measuring apparatus that facilitates measuring the load and displacement of a contact of an oil tank without applying a load to portions other than the contact of the oil tank of an on-load tap changer. The cont...
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JP2010123587A |
To provide an electromagnetic device which can continuously increase and decrease a reactance value without being influenced by a current of an AC main winding and reduces control loss.The electromagnetic device has a structure in which ...
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JP4469512B2 |
To provide a commercially usable current limiter device by solving various problems in currently proposed current limiter devices. In this current limiter device with a saturable DC reactor, a DC output terminal of a full wave rectifier ...
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JP2010103812A |
To provide a switching element which causes a heavy current to be flowed although being small-sized.In a liquid 3 in which particles are dispersed, a pair of electrodes 41, 42 are disposed while facing to each other at a predetermined fa...
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JP2010093083A |
To provide a coil component with a wide variable range of inductance by a simple structure.The coil component 10 includes a first magnetic core 2 in a closed magnetic path structure, a first coil 3 wound to the first magnetic core 2 and ...
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JP2010080590A |
To provide a change-over switch for an on-load tap changer, capable of arbitrarily setting a period of maintaining a contact state of a movable contact to a fixed contact.The change-over switch for an on-load tap changer is constituted b...
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JP4445393B2 |
A system (10) for heating a biological site in a patient's body includes a transformer (14) having a primary winding and a secondary winding. The secondary winding has a tap (24) to provide a ground reference and two sources of radio fre...
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JP4421931B2 |
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JP4411460B2 |
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JP4403175B2 |
The load switch has the 2 fixed main contact pairs (3,4) for each current phase and a single movable main contact (16), pivoted into 2 different end positions for briding one or other of the fixed main contact pairs. Each of the latter h...
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JP2010011729A |
To provide a poly-phase circuit apparatus having no defect pointed out in conventional arts.The three-phase rectifying apparatus 9 includes three heating circuits which are constituted out of a three-phase primary winding 2 connected wit...
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JP4398250B2 |
A controllable transformer device comprising a body of a magnetic material, a primary winding wound round the body about a first axis, a secondary winding wound round the body about a second axis at right angles to the first axis, and a ...
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JP4382420B2 |
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JP2009290005A |
To provide an on-load tap changer capable of surely preventing occurrence of shutoff mistake even when a direct current is carried to a main valve, and exhibiting excellent insulation performance and stable shutoff capability.This on-loa...
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JP4374620B2 |
To provide a transformer configuration in which a turn ratio can be freely changed, ex post facto, in accordance to required specifications from a user. A transformer 1 includes a primary winding 30 serving as a primary winding body, a s...
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JP4368051B2 |
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JP4364681B2 |
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JP4364702B2 |
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JP4369028B2 |
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JP4359132B2 |
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JP4352477B2 |
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JP4352478B2 |
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JP4352476B2 |
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JP4354624B2 |
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JP2009238966A |
To provide an A.C./D.C. converter can reduce power loss and facilitate miniaturization.This A.C./D.C. converter is provided with: a D.C. winding 1; a D.C. iron core 3 for winding the D.C. winding 1 around it; an A.C. iron core 5 connecte...
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