Interlock system for bypass/isolation automatic transfer switch

Details Interlock system for bypass/isolation automatic transfer switch Interlock system for bypass/isolation automatic transfer switch

1990-02-05

1991-06-11

Scott, J. R.

Electrical transmission or interconnection systems

Plural supply circuits or sources

Substitute or emergency source

H02J 900

Patent

active

050234692

ABSTRACT:
A simplified mechanical and electromechanical interlock system connecting automatic transfer and bypass/isolation switches in a bypass/isolation automatic transfer switch is provided, whereby the risk of hazard resulting from the misconnection of power sources through automatic transfer and bypass/isolation switches is reduced by prevention of closure of the two switches into opposite or dead sources is prevented. Related retractable table structure is also provided for moving the automatic transfer switch from a frame in which the switches are housed.

REFERENCES:
patent: 4021678 (1977-05-01), Moakler et al.
patent: 4398097 (1983-08-01), Schell et al.
patent: 4423336 (1983-12-01), Iverson et al.
Zenith Controls, Inc., Instruction Manual, ZBTSH Series Bypass/isolation Transfer Switch, Jan., 1989.

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