Electricity: circuit makers and breakers – High-potential type – Rotating and pivoted
Patent
1976-03-26
1978-07-25
Lechert, Jr., Stephen J.
Electricity: circuit makers and breakers
High-potential type
Rotating and pivoted
200 48R, 335 1, H01H 3100
Patent
active
041031210
ABSTRACT:
Main contact and interrupter contact operating rods of opposed current interrupters are sequentially moved by a spring loaded operating mechanism to open the main contacts and interrupting contacts of the interrupter switches. Rotation of an input shaft trips a first overcenter toggle linkage by the engagement of a cam on a drive lever operably connected to the shaft. Tripping of the first overcenter toggle linkage allows the springs to rapidly move a main rod arm assembly connected to the main contact operating rods to open the main contacts. Rotation of the main rod arm assembly trips a second overcenter toggle linkage connected to a fast rod arm assembly permitting springs to rotate the fast rod arm assembly connected to the interrupter contact rods to open the interrupting contacts in sequence. Continued rotation of the shaft in the same direction causes abutments on the drive lever to engage the main rod arm assembly and the fast rod arm assembly to recock the mechanism for subsequent operation. The mechanism can also be tripped by an auxiliary mechanism independent of the rotation of the shaft. An indicator operably connected to the main contact rods provides a visible indication of the position of the main contact rods thereby indicating the position of the contacts. Also, an alignment means is provided for permitting angular alignment between the rotatable supporting insulator and the input shaft.
REFERENCES:
patent: 2978558 (1961-04-01), Barta
patent: 3508178 (1970-04-01), Chabala et al.
Rogers Edward J.
Swanson Roy T.
Lechert Jr. Stephen J.
S & C Electric Company
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