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Patent Searching and Data


Matches 501 - 550 out of 6,363

Document Document Title
JP2012238653A
To provide a tap switching device for switching energization with a simple constitution at high accuracy.A tap switching device comprises a tap selector and a changeover switch. The changeover switch switches a tap, in which a load curre...  
JP2012222064A
To obtain two outputs from one input of an energy storage mechanism of a changeover switch of a loading-time tap changer.The energy storage mechanism comprises: an input disc 210 rotating in a circumferential direction; a first crank 110...  
JP2012221178A
To provide a handle with a rotation angle display part not only for detecting and displaying the rotational frequency of one rotation of a handle, but also for easily detecting the rotational frequency of less than one rotational frequen...  
JP2012204798A
To provide an energy storing mechanism with a forced feed mechanism which has an inexpensive and simple structure and allows stable operation with suppressed load torque, and also to provide an on-load tap changer equipped with the energ...  
JP2012523680A  
JP2012523681A  
JP5037100B2  
JP4963300B2  
JP2012117978A
To appropriately display each power waveform even when excessive shaft torque is activated immediately after a motor is started.A power waveform display system 10 has: electric power acquisition means 60, 61, 22 through 24 and 30; and di...  
JP4939566B2  
JP2012099490A
To improve temperature uniformity in a width direction of a strip.An electromagnetic induction heating device of a metal strip 4 moving in a specific direction has at least one electric coil 2 arranged opposite to at least one surface in...  
JP2012094782A
To provide an LTC (on-Load Tap Changer) with a simple structure, which can suppress the usage of SF6 gas.The LTC comprises: a first insulating cylinder; an upper lid which closes an opening of the first insulating cylinder; a support pla...  
JP4932489B2  
JP4934601B2  
JP2012069692A
To provide a single valve type on-load tap changer suitable for practical use by reducing the breaking current of the valve.In an on-load tap changer 1, a resistance changeover switch SW1, a VCB changeover switch SW2, and a conduction ch...  
JP2012064629A
To provide a method of on-load tap changing capable of performing changeover of a switch without generating arc in a changeover switch for an on-load tap changer.In a one-resistor, one-valve changeover switch L1, the switching operation ...  
JP4904329B2  
JP2012049238A
To allow the variable range of inductance to be broadened while also maintaining high magnetic shield performance in a transformer.A transformer 4 comprises: a lower collar part 421 secured to a base 41 and facing the base 41; a coil fix...  
JP4874493B2  
JP2012028639A
To provide a gas-insulated on-load tap changer which can be made compact, can suppress temperature rise of a current limit element even when insulating gas with low heat capacity is used, and can provide a good maintenance workability.A ...  
JP2012503317A  
JP2012501069A  
JP2012501070A  
JP2012010539A
To provide a power supply device capable of controlling an output voltage without using a complicated control circuit on a primary side.A power supply device has: a transformer with cores 1, 4, and 5 that form a coupling magnetic path fo...  
JP2011222561A
To switch a Δ-connection to a V-connection, while preventing the increase of a loss due to a load loss.A load factor calculating section 11 calculates a load factor of a three phase power transformer on the basis of the detection values...  
JP2011192839A
To provide transformer facilities with a load tap changer, constituted so that when a component such as a diverter switch of a changeover switch of an on-load tap changer is maintained or replaced in the transformer facilities with the l...  
JP2011187889A
To provide a tap selector of an on-load tap changer such that connection structures of input lines are simplified to improve operability and an assembly state is confirmed directly from outside.An insulating shaft 4 has one end and the o...  
JP2011187569A
To provide an on-load tap changer that suppresses excessive abrasion due to a defect in lubrication on a slide surface of a change-over contact with compact and simple constitution.The on-load tap changer includes a feeding contact 11 fi...  
JP4774437B2  
JP4765891B2  
JP4767141B2  
JP4764686B2  
JP2011171560A
To provide an environment adaptive type on-load tap switching device which is improved in dielectric strength voltage of an insulated drive shaft portion of a selector switch portion, and further has insulation reliability.The on-load ta...  
JP4764303B2  
JP4764245B2  
JP4764318B2  
JP2011159647A
To provide a transformer device having a built-in tap changer capable of ensuring sealability even in special conditions in a cold district.The transformer device includes a tap changer including a transformer tank 1 for housing the tran...  
JP4750903B2  
JP4745201B2  
JP2011146526A
To provide a magnetic flux control type variable transformer with a simple structure, the transformer adjusting a load voltage at high speed and in a continuous manner by adjusting a control current while reducing a control loss.Center l...  
JP2011139039A
To provide a transformer device which can convert different AC voltages to a desired voltage and can be made compact in size and light in weight.The transformer device includes a primary winding (3) for receiving an AC voltage, a plurali...  
JP4719045B2  
JP4703473B2  
JP4702834B2  
JP4693901B2  
JP4682252B2  
JP4680261B2  
JP4678613B2  
JP2011512028A  
JP4664928B2  

Matches 501 - 550 out of 6,363