EMA Inc.
EMA Inc.

7000 HP Medium Voltage VFD for sale

EMA has a lead on an unused 4160 volt 7000 HP Toshiba T300MVi medium voltage VFD for sale.

Large Horsepower VFD

VFD Repair: Highest measured customer satisfaction level

EMA is a major repair center for VFD s of nearly all brands. While the cost of new VFDs has made repairing smaller units uneconomical at times, our repair shop continues to repair VFDs in considerable numbers, especially high horsepower VFDs.

medium voltage phase shifting transformer

Refurbishing and modifying Medium Voltage VFDs

EMA is in the process of refurbishing and modifying a set of medium voltage VFDs, changing them from a 3300 VAC input to a 4160 VAC input.

CO2 compressor at Fasken Oil Ranch

Startup for Toshiba T300MVI Medium Voltage VFD on Oil Field Compressor

With the advancements in technology, VFD manufacturers have made low voltage VFD’s user friendly and interface-easy to a point that most electrically inclined customers can start up their own low voltage VFDs. This is not the case on Medium Voltage VFDs. The potential for damage to the equipment and personnel could be huge when it comes to Medium Voltage VFDs. This equipment is sophisticated enough to require a professional start up.

When should you use a VFD as a Softstarter?

A VFD can be used as a softstarter. Medium and low voltage softstarters are less expensive than medium or low voltage variable frequency drives (VFD) . If a softstarter will do the job, then that’s often all you need. However, at EMA, we’ve seen situations where a softstarter was purchased and installed, only to discover that it would not start the load. Here’s why.

Toshiba T300MVi

Refurbished (un-used) Toshiba T300 MVI Medium Voltage VFDs

EMA has acquired 9 1000 HP medium voltage Toshiba T300MVI VFDs. We are refurbishing and testing the units, which will carry a full warranty. We expect to have the first two ready to ship on or about November 20th.

Yaskawa E7 VFD

We’re increasing medium voltage VFD and low voltage VFD stock

EMA began as a service company, doing drive and VFD service for a national customer base. At first, we rarely stocked any VFD equipment, although we did usually carry VFD parts. However, we now stock a large number of both low voltage and medium voltage VFDs, available for immediate shipment.


Siemens Robicon Perfect Harmony VFD repairs

EMA repairs Siemens Robicon Perfect Harmony medium Voltage VFD s. We have the power cells in stock and have a great reputation in this field.


Energy Savings using Medium Voltage VFD

The concept of using variable frequency drives to reduce energy costs is well established. Depending on which survey you read, around 80% of VFD s sold are sold, at least in part, for the purposes of saving energy. No serious person questions the fact that AC Drives save energy.

LSIS Drive Stock

LG VFD is now LS Drives or LS Industrial Systems

EMA has always been privileged to have service relationships with some of the finest drive companies in the world. To list a few.. we have service relationships with WEG, with Toshiba, with Hitachi, with Danfoss, with LTI Servos, with Yaskawa, and most recently, with LS Industrial Systems, or LS Drives.