Three-position actuating mechanism for transfer switch

Details Three-position actuating mechanism for transfer switch Three-position actuating mechanism for transfer switch

1989-07-18

1991-03-12

Stephan, Steven L.

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Multiple contact type

200 18, H01H 6706, H01H 300

Patent

active

049995987

ABSTRACT:
A three-position actuating mechanism (10) for a transfer switch (11) is disclosed. The transfer switch is movable by the actuator (10) between a contact block (13) corresponding to a normal power source, and a contact block (14) interconnected to a standby or emergency power source. The actuator (10) has a pair of disk drives (22, 23) interconnected to solenoids (20, 21) by means of linkages (33, 34). The disk drives (22, 23) are interconnected to each other and to a driven disk (26) by means of a pin (30). Energization of the solenoids (20, 21) causes movement of the corresponding solenoid plunger (31, 32) and rotation of the disk drives (22, 23), so as to cause rotation of the contact crossbar (16) and transfer of the contacts (15, 18) between the two power sources.

REFERENCES:
patent: 1286001 (1918-11-01), Hoeschen
patent: 2635155 (1953-04-01), Barr
patent: 3238319 (1966-03-01), Godel et al.
patent: 3798395 (1974-03-01), Norman et al.
patent: 4016385 (1977-04-01), Golioto
patent: 4021678 (1977-05-01), Moakler et al.
patent: 4033446 (1977-07-01), Taubert
patent: 4563554 (1986-01-01), Perrenoud
patent: 4636594 (1987-01-01), Patel et al.
patent: 4760278 (1988-07-01), Thomson

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