1LUS010001-LFE_ParallelOperTrans

1LUS010001-LFE_ParallelOperTrans

تعداد صفحه : 8Scope This leaflet contains general procedures to be followed from the time the transformer and its accessories are received, until it is put into operation. These instructions do not purport cover all possible contingencies that may arise during installation, operation, or maintenance, and all details and variations of this equipment. If you require additional information regarding this equipment, contact ABB Small Power Transformers in South Boston, Virginia. The theoretically ideal conditions for paralleling transformers are: Identical turn ratios and voltage ratings. Equal percent impedances. Equal ratios of resistance to reactance. Same polarity. Same phase angle shift. Same phase rotation. Single-Phase Transformers For single-phase transformers, only the first...