HIGH-VOLTAGE CIRCUIT BREAKER Russian patent published in 1997 - IPC

FIELD: high-voltage devices for controlling and protecting electric circuits. SUBSTANCE: circuit breaker has metal frame mounting insulating cases with arc-control chambers; operating mechanism is installed on frame support. Supports are overhanging from posts so that bending moment is reduced 41 times in circuit breaker frame; according to calculations, F=1600 N; a= 200 mm; b= 70 mm for point C. Considering that maximum moment in proposed invention is built up at point of support, maximum moment of proposed design is 2.9 times greater than that of prototype. Same concerns shaft. EFFECT: almost three-fold reduction in metal input without impairing specified characteristics; simplified design. 2 cl, 2 dwg