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JP2014525678A |
The invention relates to a worm gear which is arranged directly on the head of an on-load tap changer and has a housing, a worm, and a worm wheel, wherein means for torque detection comprising at least one radio-scannable surface wave se...
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JP5579795B2 |
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JP2014130864A |
To provide a magnetic circuit capable of variably adjusting characteristics while consuming very little power, and a method of adjusting the same.A magnetic circuit 2 comprises, as a characteristic adjustment part 10: a soft magnetic bod...
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JP2014123599A |
To provide a diverter switch which can prevent a high voltage of external lightning, or the like, from being imposed to a vacuum valve used as a breaking element, and can block dielectric breakdown of a vacuum valve due to a high voltage...
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JP5537365B2 |
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...
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JP2014514748A |
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...
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JP5520613B2 |
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JP2014068503A |
To provide a new and special efficiency enhancing device.A three-phase induction motor efficiency enhancing device comprises: reactance grant means comprising a primary coil 9 configuring a non-inductive winding; reactance adjustment mea...
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JP5472846B2 |
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JP2014507800A |
The invention relates to a tap changer having vacuum interrupters for switching over between winding taps of a tapped transformer without interruption. The tap changer according to the invention having vacuum interrupters is based on the...
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JP2014506733A |
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...
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JP5431212B2 |
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JP2014504808A |
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...
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JP5419079B2 |
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JP5416133B2 |
The present invention relates to a system and method for preventing, protecting OLTC from fire and/or preventing, protecting and/or detecting explosion and/or resulting fire of electrical transformer (30) in advance before decomposition ...
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JP2014502049A |
A tap changer for uninterrupted switching between winding taps of a tapped transformer has first and second load branches for each phase to be switched. Each load branch has a main vacuum switch and in parallel thereto a series connectio...
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JP5389290B2 |
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JP5390162B2 |
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JP5366097B2 |
To provide a secondary side power reception circuit of a non-contact power supply facility capable of stably supplying power at the voltage required from a load, without depending on a saturation voltage of a saturable reactor that fluct...
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JP2013247173A |
To provide an on-load tap changer and a transformer which have a compact simple configuration and can perform accurate abnormality determination without overlooking any slight abnormality, thereby improving system safety and reliability....
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JP2013247731A |
To provide a superconducting current limiter in which degradation of insulation performance can be minimized even during current limit operation.A plurality of superconducting coils 5 formed by winding a superconducting wire 2 a pluralit...
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JP2013247808A |
To provide a connection mechanism for a secondary side of a transformer which permits easy separation of an apparatus connected and easy connection of a mobile apparatus.A connection mechanism for a secondary side of a transformer includ...
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JP2013247170A |
To enhance durability by suppressing consumption of a neutral contact, and to enhance positioning accuracy, compactness and economy by simplifying the configuration.A neutral contact 16, a first tap contact 17 and a second tap contact 18...
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JP5360427B2 |
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 f...
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JP5352975B2 |
In the upper face of a substrate (22), there are formed a plurality of recesses (25). In one recess, a variable condenser (27) is formed by mounting a plate-shaped stationary electrode (30) on the bottom face of the recess (25) and by mo...
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JP5354730B2 |
To simplify structure in a three-phase voltage-controlling transformer assembly for controlling an output voltage at a non-step mode. The three-phase voltage-controlling transformer assembly includes three sets of first to third transfor...
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JP5354728B2 |
To achieve a simple configuration as well as stepless control of the output voltage, in a voltage controlled transformer. The voltage controlled transformer includes: a transformer formed by winding an input winding AN1 and an output win...
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JP5336136B2 |
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...
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JP2013539221A |
A tap changer for uninterrupted switching over between winding taps of a tapped transformer has two load branches each for a respective phase to be switched. Each load branch has a vacuum switching contact acting as main contact and para...
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JP5317896B2 |
To provide a vacuum valve which allows use in high pressure gas and a tap switching device for gas insulation load which is small sized and has high reliability suitable for the vacuum valve. The vacuum valve 2 is arranged inside a seale...
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JP5318024B2 |
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 value...
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JP2013537717A |
An on-load tap changer for uninterrupted switching between different winding taps of a regulating winding of a tapped transformer in a transformer housing has at least one selector inside the housing for power-free selection of the respe...
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JP2013201319A |
To improve assembly operability while improving the reliability of a device by reducing a load on a shaft.A tap changer includes a metallic driving shaft 110, a current collecting contac shoe 120 extending outside the driving shaft 110 i...
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JP5296471B2 |
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 ...
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JP2013535849A |
The invention relates to a tap changer for switching among winding taps of a step transformer without interruption, said step transformer having an oil-filled transformer tank, wherein the tap changer does not have a separate housing or ...
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JP5286610B2 |
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JP5279864B2 |
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JP5280510B2 |
An electrical winding (2) elongated across the width of a running metal plate (4) is located above the plate and orientated parallel to it. Magnetic bars (9) associated with the winding may be individually slid along it to adjust the fie...
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JP5283261B2 |
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...
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JP5279120B2 |
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 pl...
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JP5276961B2 |
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...
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JP2013162604A |
To provide a power facility support system that can apply an optimal amount of load suppression to a transformer in tune with a coping time necessary for a worker to cope with trouble.An electric facility operation support system compris...
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JP5237994B2 |
An on-load tap changer (10) (OLTC) for a transformer winding (12) is disclosed. The OLTC includes a first MEMS switch (18) coupled in series with a first tap on the transformer winding (12) and a neutral terminal (16). The OLTC also incl...
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JP5225360B2 |
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JP5223067B2 |
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JP2013526771A |
The invention relates to a load transfer switch for a tap changer for switching among various winding taps of a step transformer without interruption. The general inventive concept lies in fastening both the force accumulator and the loa...
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JP5210809B2 |
Capacitances (308) in an impedance-matching box (306) for an RF coil (104), in a plasma deposition system for depositing a film of sputtered target material (110) on a substrate (112), can be varied during the deposition process so that ...
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JP2013520018A |
A power supply apparatus which includes a transformer having a primary winding and a secondary winding, whereby magnetic flux generated by a varying primary voltage applied to the primary winding induces a varying secondary voltage on th...
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JP5196343B2 |
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JP2013516051A |
The invention relates to a step switch provided with a preselector and a polarity circuit, a separate polarization resistance being respectively provided at the beginning and the end of the stepped winding. Optionally, the two polarizati...
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