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SYSTEM AND PROTECTION AND TELE-FEEDING DEVICE FOR EQUIPMENT LINKED BY TWO TRANSFORMERS TO A FOUR-WIRE TRANSMISSION CONNECTION
SYSTEM AND PROTECTION AND TELE-FEEDING DEVICE FOR EQUIPMENT LINKED BY TWO TRANSFORMERS TO A FOUR-WIRE TRANSMISSION CONNECTION
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机译:两台变压器与四线制输电线路相连的设备的系统,保护和电信设备
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摘要
The protection and remote-powering system and the remote-powering extractor protection device are intended for equipment connected by two transformers (9, 10) to a transmission link (1) with two pairs of wires ensuring remote-powering of the equipment serviced. …??Each transformer is joined to the two wires of a pair (2 or 3) by two identical windings (13, 14 or 15, 16) connected in series between these two wires across a capacitor (15 or 18). The two pairs of wires constitute a phantom power circuit, the two wires of one pair being connected to the same terminal of a DC generator (27). …??The protection and extraction device comprises two rectifier bridges (28, 29) each connected separately by their inputs to a pair of wires, and interconnected by their outputs in order to provide the remote-powering. …IMAGE…
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