The AS7000 is our new MV VFD. It be configured for input voltages from 2.3 kV to 11 kV and has a power range from 250 hp to 6000 hp. It has an integral 30 pulse isolation transformer which minimizes harmonic generation and guarantees IEEE-519 conformity. The output consists of a multi-stage LV power cells which produce an extremely motor friendly waveform requiring no output filtering. As well the multiple power cell design provides for easy maintenance - a power cell can be replaced in 30 minutes or less with no special tools.
The Dura-Bilt5i MV’s compartmentalized design streamlines installation, commissioning, and maintenance of medium voltage drives in pumps, aerators and other critical water treatment processes. With a Mean Time Between Failure (MTBF) exceeding 16 years, the Dura-Bilt5i MV is engineered to deliver rock solid performance in virtually any application.
The TM-30 is a medium power level, 1,250 Vac drive. Three converter types are available, a diode non-regenerative type, a thyristor regenerative type, and an IGBT regenerative type.
The inverters are IGBT-based with heat pipe cooling and exhaust cooling fans. The three power bridges are modular on heavy duty slides that reduce the time for maintenance.
The output frequency is variable from 0 to 120 Hz, and power levels up to 4,000 kVA are available.