Electrical transmission or interconnection systems – Switching systems – Condition responsive
Patent
1992-03-05
1993-11-09
Pellinen, A. D.
Electrical transmission or interconnection systems
Switching systems
Condition responsive
307 32, 340310R, H02M 110, H02J 700
Patent
active
052606058
ABSTRACT:
A polarity switch changes the direction of DC to various loads in response to a sensed loss of AC and nonessential loads are shed in response to a sensed change in DC polarity at the various loads.
REFERENCES:
patent: 4348582 (1982-09-01), Budek
patent: 5055703 (1991-10-01), Schornack
patent: 5172009 (1992-12-01), Mohan
Alcatel Network Systems, Inc.
Elms Richard T.
Pellinen A. D.
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