FIELD: electrical engineering.
SUBSTANCE: invention relates to electrical engineering and can be used for testing transformers at transformer plants. Output transformer (windings 5, 6) and output terminals 4 of the plant are connected to adjustable by output frequency and voltage converter 2 via six-pole switch. This allows testing modes with high current or high voltage.
EFFECT: expansion of operating capabilities.
2 cl, 2 dwg
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