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?They Said It Couldn?t Be Done, So We Did [History]

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2 Author(s)

When it began is hard to say, but one thing is certain: The real electronics breakthrough for Danfoss came with the introduction of the VLT5 frequency converter in 1968. It was the first mass-produced device that could speed control a standard, 5-hp electric motor.

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Industry Applications Magazine, IEEE  (Volume:19 ,  Issue: 4 )