Drives can save an average of 40% of the electricity a motor uses as well as reduce related CO2 emissions. Since industry accounts for one-third of the world’s electricity consumption and electric motors consume 65% of industrial electricity in regions such as the EU, the potential global energy savings from a wider use of drives would be substantial. For an industrial enterprise drives can reduce energy costs, minimize wear on motors and other equipment, and reduce maintenance costs. For factories, buildings, and utilities, Delta’s MVD2000 medium voltage drive can save energy significantly.
Precise Vector Control
The MVD2000 series delivers advanced motor vector control, including with and without encoder. It is suitable for constant torque applications such as crushers, extruders and conveyors. The ability to decoupling motor flux and speed yields fast dynamic response to load fluctuations and high torque at low speeds, including at motor start-up. The drive achieves stable motor operation and accurate speed control so that it can be used for applications with higher requirements.
High Efficiency
The MVD2000 boasts a system efficiency at more than 98.5%. With its output waveform similar to sine wave, the MVD2000 supports applications with long distance between motors and drives. The built-in PID controllers enables to regulate flow, pressure, temperature and other factors to better control the environment.
Stability
IEEE519-1992 complied MVD2000 has a super low current harmonics and won’t affect other electronics on the feeder. It tolerates voltage fluctuation from the grid to ensure motors to work stably. Optional power cell bypass ensures that any failed power cell can be bypassed to keep the system in operation until maintenance can be schedule. This increases the system availability effectively and reduces downtime. Modular design also effectively reduces installation and maintenance time.
Major Applications
Thermal power generation Coal mill, induced draft fan, forced draft fan, primary air fan, desulfurization booster fan, condensation pump, feed water pump, circulation water pump.
Metallurgy Conveyor belt (with brake), gas compressor, dust removal fan, blast furnace blower, centrifugal feed pump, volumetric pump, phosphorus removal pump, boiler feed water pump.
Mining Crusher, grinding mill, conveyor belt (with brake), volumetric pump, ventilation fan, feed pump, drain pump.
Petrochemical & gas Compressor, volumetric pump, centrifugal pump, feed water pump, induced draft fan, main channel pump, oil pump, kiln head exhaust fan, submersible pump head/tail exhaust fan, dust removal fan, rotary kiln.
Cement & building materials Crusher, grinding mill, blender, extruder, drying furnace fan, hot temperature fan, raw mill fan, kiln head/tail exhaust fan, dust removal fan, rotary kiln.
Sugar and ethanol Cane sugar mill, water pump, induced draft fan.
Rubber Burner blower, feed water pump, dust collector, banbury mixer, extruder, conveyor belt (with brake).
Municipal engineering Chiller, cooling tower, water supply pump, water intake pump, sewage pump, heat circulation pump, clean-up pump, aeration pump, clean water pump, air compressor.
Energy Saving Cases
Delta’s medium voltage drive has successfully enabled annual energy savings in motors of three induced draft (ID) fans in a refuse incineration plant in Taiwan by up to 54%. Such impressive improvement ratio, achieved through the energy-efficient motor speed control realized by the three units of Delta’s MVD series drives, translates into annual savings of approximately 1.7 million kWh in electricity consumption for the first unit installed and to a valuable investment payback period below one year.
The three units of Delta’s MVD have been implemented in a refuse incineration plant in Taiwan to regulate the speed of three ID fans’ 6.6kV, 710kW-rating motors, thus, replacing existing damper control. After one year in operation, one single MVD has enabled annual energy savings of up to 54% for a total of approximately 1.7 million kWh in lower electricity consumption, without sacrificing air flow requirements.
Other sites that have recently obtained relevant benefits from the utilization of Delta’s MVD series include a cement manufacturing plant and an international airport, both located in Taiwan. The former experienced up to 51% annual energy savings through the management of motor speed in a rotary kiln cooling ID fan while the latter case includes a compact all-in-one MVD solution that decreases the input harmonics in the chiller equipment of the southern Taiwan airport’s air conditioning system.
Stop wasting money. Talk to a Delta expert today and save energy bill quick.
