FIELD: mining machinery and equipment. SUBSTANCE: this relates to mining automatics and can be used in systems of monitoring and remote control of electric drives in work-face machines. Power unit of transmitting side in device incorporates storage battery for feeding its component units for forming and transmitting information by high-frequency signals. Signal formation and transmitting units are connected with control desk having contacts of start and stop. Located at receiving side of device are block-connecting unit and information receiving unit. Information receiving unit identifies high-frequency signal, amplifies it and transmits it to corresponding electromagnetic relay. Relay contacts operate and transmit command signal which is preset by contacts of start and stop through control wires of feeding cable to magnetic starters for switching on or off electric motors of work-face machines. Application of aforesaid device improves operational reliability due to transmitting control signal via wire of feeding cable to magnetic starters of work-face machines. EFFECT: higher efficiency. 2 dwg
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Authors
Dates
1998-12-20—Published
1997-03-05—Filed