FIELD: electrical engineering. SUBSTANCE: method for continuous current collection and signal transmission among pieces of equipment mounted for relative displacement is characterized in that products of wear are entrapped due to action of magnetic field and accumulated on surface of source of magnetic field; contact members are made of composite magnetically soft conducting materials. Means for collecting products of wear of contact members incorporated in current- collecting device has at least one constant-field source mounted on its case in a spaced relation to contact members. Products of wear of contact members are accumulated throughout entire operating period of device. EFFECT: improved reliability of current collection. 6 cl, 1 dwg
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