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SYSTEM FOR MEASUREMENT AND ADJUSTMENT OF SYMMETRY OF LOADING OF THREE-PHASE MAINS SUPPLYING HIGH-POWER SINGLE-PHASE RECEIVERS,ESPECIALLY HEATING COILS OF INDUCTION FURNACES
SYSTEM FOR MEASUREMENT AND ADJUSTMENT OF SYMMETRY OF LOADING OF THREE-PHASE MAINS SUPPLYING HIGH-POWER SINGLE-PHASE RECEIVERS,ESPECIALLY HEATING COILS OF INDUCTION FURNACES