Richard Huang's Blog (4)

large horsepower flux vector control variable speed drives (AC inverter drives)

large horsepower flux vector control variable speed drives (AC inverter drives)

Voltage range: 

200 VAC - 240 VAC (180 VAC - 260 VAC): 200 V, 220 V, 240V

380 VAC - 480 VAC (323 VAC - 528 VAC): 380 V, 400 V, 415 V, 420V, 440 V, 460 V, 480 V

525 VAC, 575 VAC

690 VAC - 790 VAC (587 VAC - 793 VAC)

1140 VAC (960 VAC - 1300 VAC)…

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Added by Richard Huang on May 21, 2014 at 6:49pm — No Comments

brake units & brake resistors: dynamic braking for variable frequency drives & servo drives

brake units & brake resistors: dynamic braking for variable frequency drives & servo drives

braking units (brake choppers) are electrical switch. They limit the DC bus voltage by switching the braking energy to braking resistors where the braking energy is converted to heat.



braking units (brake choppers) are automatically activated when the actual DC bus voltage exceeds a specified level depending on the nominal voltage of…

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Added by Richard Huang on December 30, 2013 at 12:43am — 1 Comment

Retrofitting of sugar squeezing machine with AC VFD inverters

In sugar industry, squeezing machine (squeezer, squeezing mill, crushing machine) is important and necessary.



From the angles of production process and energy saving, retrofitting of sugar squeezing machine with variable frequency drives can bring some benefits, such as increasing extraction rate, reducing the power consumption. …

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Added by Richard Huang on July 1, 2013 at 2:17am — No Comments

Applications of vector control variable frequency drive (VFD, frequency inverter)

Application of V5-H first rate vector control adjustable frequency drive (AFD)

Description     Model     …
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Added by Richard Huang on June 10, 2013 at 6:58pm — 3 Comments

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