Alternating Current motors, “the workhorse of the industry”, are used to drive fans, crushers, agitators, pumps, conveyors etc. Depending on how it is installed, too often unnecessary and unwanted torque and current peaks is an everyday reality in production plants all over the world, causing damage in several ways: • Electrical problems due to voltage […]
Based on over 15 years of 18-pulse drive experience and the highly successful 9000X Series of adjustable frequency drives, the Eaton CPX9000 drives use advanced clean power technology to significantly reduce line harmonics at the drive input terminals, resulting in one of the purest sinusoidal waveforms available. The Eaton CPX9000 drives deliver true power factor, so in addition to reducing harmonic distortion, […]
With the Eaton SC9000 VFD double-bus, a second 1200 amp VFD bus is located above the main bus, adding only 8 inches of additional height to the system. The Ampgard SC 9000 doublebus enables close-coupling of an optional 24-inch-wide drive output contactor and multiple motor bypass and motor select contactors under a common bus alignment. Ampgard SC9000 integrated Control – Gear synchronous transfer control design gives Eaton’s customers the benefit of a […]
Eaton’s SVX9000 adjustable frequency drives are the compact, modular solution to variable speed applications. They enable a broad range of new application capabilities. A complete selection of option cards allows you to configure the drive to meet any requirement. With its wide voltage range, high overload ability, and user-friendly alphanumerical keypad, SVX9000 drives are the smart decision for every user. Just three […]
Manufacturers in the United States rely on electric motor drive repair to minimize production downtime in their plants. Most original equipment manufacturers of electric motor drives convince users to replace failed drives rather than repair them, because original equipment manufacturers are in direct competition with companies who offer drive repair. Maintenance technicians work closely with […]
A VFD (variable frequency drive) is an electric motor drive and although it will convert single phase to three phase it should never be used as a power source for control circuits, instrumentation circuits, or to operate other electronic components. The solution should be to isolate and feed the machine control circuit from a separate single phase […]
The Yaskawa P7 VFD is for industrial applications such as centrifugal fans and pumps. The Yaskawa P7 VFD is provided in Normal Duty ratings with 110% overload capability. V/f control mode, network communication options, and an array of input/output options are available. The P7 VFD is factory-programmed and ready to run. For operational simplicity and clarity, the LCD operator display has […]
The Yaskawa V1000 drive is a high performance line of AC micro drives with low motor noise and high starting torque. It provides two control methods; V/f and open loop current vector control for precise speed regulation and higher torque at lower speeds. The Yaskawa V1000 drive is intended for either heavy duty applications (overload […]
The Yaskawa G7 drive is the ultimate performance solution with increased speed and torque response to provide servo-like performance from an induction motor. The Yaskawa G7 drive has the world’s first 480V 3-level inverter architecture that eliminates or minimizes the installation problems associated with IGBT switching and protects the entire motor-drive system. The 3-level control eliminates peripheral components typically required to solve […]
The Yaskawa A1000 VFD is a multi-purpose drive in power ratings through 1000 horsepower and provides Yaskawa’s highest level of vector performance including precise speed control of both induction and permanent magnet motors. The Yaskawa A1000 VFD is factory-programmed and ready to run. An LCD interface enhances ease of use with its multiple language support and parameter copy […]
ABB low voltage alternating current drive products range from 0.18 to 5600 kW which is the widest selection available from any other drive manufacturer. ABB low voltage drives establish the global benchmark signifying reliability, simplicity, flexibility and ingenuity throughout the entire life cycle of the drive. Application Diversity ABB general purpose drives are designed to control a wide […]
Variable frequency drives that control AC and DC motors induce harmful electrical voltages on the corresponding electric motor shaft. Once these voltages exceed the resistance of the bearing lubricant, they discharge through the motor’s bearings causing fusion craters, severe pitting, fluting damage, excessive bearing noise and eventually bearing failure. Damaging voltages that are induced on the shafts of […]
