Electricity: circuit makers and breakers – Multiple circuit control – Pivoted contact
Patent
1984-12-07
1986-06-17
Scott, J. R.
Electricity: circuit makers and breakers
Multiple circuit control
Pivoted contact
200153PA, H01H 344, H01H 1954
Patent
active
045958068
ABSTRACT:
An on-load tap changer which comprises a rotary selector switch including a plurality of contacts which are divided according to phases into groups which are arranged in the axial direction of the tap changer, a rotary change-over switch including a plurality of contacts, and an intermittent drive mechanism connected between the selector switch and the change-over switch for intermittently transmitting the rotary motion of the selector switch to the change-over switch, the intermittent drive mechanism having an asymmetrical shape which provides a closest portion that is closest to the contacts of the change-over switch. The arrangement is such that the contacts of the change-over switch are divided into groups according to phases which are arranged in the circumferential direction of the change-over switch, the intermittent drive mechanism is at an electrical potential equal to that of the contacts of the selector switch closest to the intermittent drive mechanism, and the closest portion of the intermittent drive mechanism is positioned within a phase region within which the closest portion is positioned.
REFERENCES:
patent: 3246088 (1966-04-01), Maunder
patent: 3250864 (1966-05-01), Bleibtreu et al.
patent: 3396254 (1968-08-01), Bleibtreu
patent: 3485965 (1969-12-01), Bleibtreu et al.
patent: 3798395 (1974-03-01), Norman et al.
Mitsubishi Denki & Kabushiki Kaisha
Scott J. R.
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