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Matches 501 - 550 out of 6,264

Document Document Title
JP2010135445A
To provide an on-load tap changing device which is compact, generates low switching noise, and can optimize a cutoff speed. The on-load tap changing device is characterized in that the cutoff speed can be optimized and noise due to a cut...  
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 ...  
JP4469512B2  
JP2010103395A
To provide an inexpensive and compact on-load tap changing device.The on-load tap changing device is characterized in being composed of one current-limiting resistance by arranging the current-limiting resistance 408 on an insulating pla...  
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...  
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 ...  
JP2010093050A
To provide a compact tap changer capable of changing taps at high speed and quietly while having a simple configuration with less driving mechanism compared with conventional ones, and to provide an inexpensive, quiet, and space-saving o...  
JP2010080470A
To provide an existing automatic voltage regulator for power distribution in which a protective cover is easily attached to a tap position inspection window even for a field assembled article.In the automatic voltage regulator for power ...  
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...  
JP4445393B2  
JP4421931B2  
JP4411460B2  
JP2010027960A
To make an electrically neutral position variable after completing a product by moving a cylindrical bobbin having a transformer coil around a bobbin tube having a rod-like core.In the differential transformer structure, a transformer co...  
JP2010017016A
To allow a magnetic-saturation type current limiter using saturable reactors, which recovers in a short time and has a self safety function so as to independently handle a fault current without a circuit breaker, while reducing the requi...  
JP4403175B2  
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...  
JP4398250B2  
JP4382420B2  
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...  
JP4374620B2  
JP2009277869A
To provide an on-load tap changer which suitably control opening/closing operation of a contact and eliminates a fault caused by sludge production.The on-load tap changer includes a container 23 filled with insulating oil and a changeove...  
JP4368051B2  
JP4369028B2  
JP4364681B2  
JP4364702B2  
JP2009267333A
To provide an existing automatic voltage regulator for power distribution in which work for providing a protective plate to a viewing window through which a check of a tap position is greatly simplified.A bolt pass-through hole 312a is f...  
JP4359132B2  
JP4352478B2  
JP4352476B2  
JP4354624B2  
JP4352477B2  
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...  
JP4334149B2  
JP2009218345A
To provide a vacuum switch type on-load tap changer which can prevent deterioration of an insulation oil.The on-load tap changer 1 includes a tap selector 2 and a vacuum switch type changeover opening and closing device 3. An opening and...  
JP4330840B2  
JP4319351B2  
JP4316024B2  
JP4317980B2  
JP4316553B2  
JP2009176993A
To provide a composite common-mode coil whose leakage inductance magnitude can be changed and whose volume and manufacturing cost can be reduced.The composite common-mode coil includes a bottom platform, a coil-onboard body, and an iron ...  
JP2009177979A
To provide a transformer for a compensation which is installed to an AC substation for an electric railway for improving a power factor to apply to a reactive-power compensator and is capable of ensuring a constant reactance ratio at all...  
JP4306826B2  
JP2009527907A  
JP4289514B2  
JP4287924B2  
JP4282795B2  
JP4282148B2  
JP4280040B2  
JP4275770B2  
JP2009117508A
To provide a tap position determining device capable of easily determining the current position of a tap from outside a transformer without newly constructing a circuit, a mechanism, etc., in the transformer.The tap position determining ...  

Matches 501 - 550 out of 6,264