Device for detecting and localizing a fault in an aerial rope-wa

Details Device for detecting and localizing a fault in an aerial rope-wa Device for detecting and localizing a fault in an aerial rope-wa

1985-09-30

1987-09-29

Swann, III, Glen R.

Communications: electrical

Condition responsive indicating system

Specific condition

104178, 104179, 340650, 340652, 340661, 340679, G08B 2100

Patent

active

046971696

ABSTRACT:
A safety line 20 of an aerial ropeway transport installation 10 comprises in one of the stations a safety generating unit 22, which emits a square wave AC signal on the line.
In the opposite station the line 20 is earthed by means of a diode 24. The safety generating unit 22 includes a measuring device of the positive and negative voltages at the line terminals to distinguish between a line break and a line short-circuit.
A localizer indicates the location of the fault.

REFERENCES:
patent: 4003314 (1977-01-01), Pearson
patent: 4088988 (1978-05-01), Berger

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