FIELD: mobile tanks repair shops. SUBSTANCE: invention is related to circuits of connection of mobile tank repair shops to electric network. Two 220 V relays which windings are permanently connected to measure voltage between zero and line wires on main control panel of shop are intended to switch over windings of users ( motors and transformers ) from delta to star connection diagram and vice versa and to keep constant 220 V voltage in line network. EFFECT: reduced time of deployment of equipment of mobile tank repair shop, enhanced reliability of its operations. 1 dwg
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Authors
Dates
2001-01-20—Published
1999-05-26—Filed