Scientific and Technical Journal


ISSN Print 2221-3937
ISSN Online 2221-3805

Bringing the process allows for a comparative assessment of the CEA with VFD for two kinds of voltages: DC and AC. Analytical ratios using the criteria: design power transformers, sections of heating, voltage drops and power. As a result, the comparative evaluation found that the SEC with VFD DC on all evaluated criteria exceeds SEK AC. SEC with VFD DC may be recommended when building or upgrading new CEA electric cranes on the VFD as it provides a significant reduction in capital costs by reducing the cross section of the tire, or trolls and decrease operating costs by reducing power losses.

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