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Assuming that the nema starter could be replaced with a variable frequency drive would be premature, certain things like length of conductors, amount of conductors in raceway, etc...like i said im no expert, i always consult an EE on these types of projects. its my experience with said EE that ive learned that standing waves generated by the switching of the variable frequency drive that can destroy a & quot;standard duty& quot; motor where an inverter duty would withstand the higher & quot;spikes& quot;. and also might one need line side reactors and load side & quot;chokes& quot; depending on the application right. like i said, im no expert on this application, therefore i do what OP is doing. ask questions. the drive manufacturer could also help right?

A Reliance drive would be relatively old. Back in the & acute;early days& acute; of variable frequency drives, it would not have been uncommon to see a delta-delta & acute;drive isolation transformers& acute; used in a mistaken effort to keep this small 10HP drive from interferring with the building& acute;s power grid (those damn harmonics). Seeing how they had to buy the transformer, purchasing a smaller 480V VFD manufacturers and motor combination may have made sense, both economically and installation wise.

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VFD Drive Tech

Address: No. 116 Tingsa Building Baoan Shenzhen, Shenzhen, Guangdong, China, 518000
Tel: 008675528480245
VFD Drive Tech has the production line with advanced production test facility, such as assembly line, the testing line, the packing line, high temperature and the normal temperature aging room. Established one whole set complete technical process, key components purchase, the assembly system regulation, software final examination, engineering test and final temperature aging, The products has been passed the IS9000:2000 international quality system standard and CE certificate, also realizes product comprehensive "5S" the quality control. The VFD include general vector series (220V 0.4KW-2.2KW, 380V 0.75KW-400KW), high performance vector series (380V 0.75KW-400KW), medium & high voltage series(690V/1140V/3000V/6KV/10KV, and so on), application in plastic machine , the drawing machine, the spinning and weaving machine, the lathe, the chemical fiber machine, the elevator, the petrochemical, the printing packing, as well as the steel and iron, the oil-gas field. Our AC variable frequency drives have been export to overseas, such as South Korea, Russian and Middle east courtiers with high reputations. VFD Drive Tech receives "with single-hearted devotion, dedicated, specialized" objective, insists on the road of the scientific innovation, the design innovation, the craft innovation, the material choosing newly "four new", in order to keep the technology update and high effective, concentrates key processing works, besides the product research and development, the assembly and the test, other processing also choosing the prestige reliable partner to complete. More and more customer entrust our VFD drives due to high quality and effective transportation and service after sales. Our AC drive aims at special customer and specialized application.