System for automatically switching transformer coupled lines

Details System for automatically switching transformer coupled lines System for automatically switching transformer coupled lines

1978-03-09

1979-07-17

Hix, L. T.

Electrical transmission or interconnection systems

Switching systems

Condition responsive

307 98, 361170, H01H 316

Patent

active

041616618

ABSTRACT:
A system is provided for automatically controlling transformer coupled alternating-current electric lines. The secondary winding of each transformer is provided with a center tap. A switching circuit is connected to the center taps of a pair of secondary windings and includes a switch controller. An impedance is connected between the center taps of the opposite pair of secondary windings. The switching circuit has continuity when the AC lines are continuous and discontinuity with any disconnect of the AC lines. Normally-open switching means are provided in at least one AC line. The switch controller automatically opens the switching means when the AC lines become separated.

REFERENCES:
patent: 3160795 (1964-12-01), Aune

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