It is common practice to have a precharge circuit in almost all low voltage VFDs, although this is not the case in MV VFD design. Inrush current can cause major damage to a medium voltage VFD. This blog describes how and why this damage occurs.
Our primary business has become field service on medium voltage VFDs. If you need Field Service on a medium voltage VFD..
We have a number of medium voltage VFDs in stock for quick and even immediate delivery. Horsepower ranges from 500 to 3500 horsepower. Some of these medium voltage VFDs are reconditioned units with a full warranty, and some are factory new. All are sold on a first-come, first-served basis. You are welcome to inspect them at our Norcross, GA, (Atlanta) facility. We’ll also be happy to send you pictures.
EMA repairs GE Multilins. We repair the Multilin 469, Multilin 750 and most others. Repairing Multilins is not a new business for us, we’ve been repairing GE Multilins for some time now.
Variable Frequency Drives (VFD) are often used on critical applications in remote locations. Examples of remote and critical VFD applications would be oil and gas pipelines, water treatment and pumping, and oil production. Remote monitoring of these units can be of paramount importance.
We’re seeing increased inquiries regarding pipeline VFD specifications for pipeline VFD applications. The following is a general overview that may prove helpful. We cover Siemens, Allen Bradly, Yaskawa, Toshiba and Nidec (Ansaldo).
Per the IEEE, electrical equipment that regularly undergoes preventive maintenance is less likely to fail compared to equipment not subjected to preventive maintenance. See our blogs on preventive maintenance.
The Toshiba T300MVI medium voltage VFD is a popular drive, and we offer field service and repair, including power cell repairs.
We have two brand new, unused, Toshiba T300MVI 2000 HP Medium Voltage VFDs in stock. These are from a cancelled project, were never installed and will carry a full warranty.
It’s amazing how many webinars we do each month around here. The most popular one we do is “Predictive Maintenance on Medium Voltage VFDs”
