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    • 2. 发明专利
    • ON-LOAD TAP CHANGER
    • JPH11176296A
    • 1999-07-02
    • JP28128798
    • 1998-10-02
    • REINHAUSEN MASCHF SCHEUBECK
    • DOHNAL DIETERHOEPFL KLAUSWREDE SILKE
    • H01H33/40H01H3/44H01H9/00H01H21/36
    • PROBLEM TO BE SOLVED: To lessen the number of parts, simplify the energy-accumulating mechanism, and obtain a simple and reliable energy-accumulating mechanism by simultaneously rotating a plurality of insulated shaft operating contactor supporting bodies for on-load tap change through a Geneva mechanism connected with a rotary shaft by using gears. SOLUTION: Three insulated shafts 13, 14, 15 penetrating respective phase plates 5 are installed in a casing 1. A rotatable movable contactor supporting body 7 to be brought into contact with fixed selective contactors 6 arranged in a circular shape in a phase plate 5 is attached to the insulated axis 13. A movable supporting body 9 to be brought into contact with fixed preselective contactors 8 is attached to the insulated axis 14. A movable contactor supporting body to be brought into contact with fixed bypass contactors 6 is attached to the insulated axis 15 and the axis 15 is connected with a vacuum switching cell 12. At the time of load tap changing, a driving shaft 19 is rotated to rotate a wheel 29 of a Geneva mechanism installed in a conductive apparatus plate 2 through gears 20, 21 and at the time to rotate the insulated axis 13 and simultaneously rotate the insulated shafts 14, 15 through a lever and consequently, contactors are changed.
    • 10. 发明专利
    • ON-LOAD TAP CHANGER
    • JPH11191514A
    • 1999-07-13
    • JP28128498
    • 1998-10-02
    • REINHAUSEN MASCHF SCHEUBECK
    • DOHNAL DIETERHOEPFL KLAUSWREDE SILKE
    • H01F29/04H01H9/00H01H31/28
    • PROBLEM TO BE SOLVED: To provide an on-load tap changer that do on-off switching based on on-off reaction principle, without stopping a current between different wiring taps of a transformer provided with two tap selectors and a bypass switch. SOLUTION: A contact holder 2 turns around a shaft 1 fixed on the contact holder 2 so that both movable bypass contacts 2.1, 2.2 are acted on together, and both movable bypass contact 2.1, 2.2 make contact electrically with each other by keeping a distance (c). In this case, both bypass contacts 3.1 and 3.2 are placed so that they are set in a co-axial circular locus line which extends as a segment form, so that the movable bypass contacts 2.1 and 2.2 makes contact dragginly with fixed bypass contacts 3.1 and 3.2 in sliding, when operated. Each longitudinal extension (a) of the movable bypass contact 2.1 and 2.2 is larger than the distance (c) between the movable bypass contacts 2.1 and 2.2, and each distance (b) of fixed bypass contacts 3.1 and 3.2 is shorter than the distance (c) between the movable bypass contacts 2.1 and 2.2.