2010-08-20 - ABB launches the ACS 2000 ULH, a new medium voltage drive rated from 400 to 1,000 kVA, in voltages up to 6.9 kV, for a wide range of applications not requiring an engineered drive
New Berlin, Wisconsin – ABB introduces the air-cooled ACS 2000 ULH, an Ultra Low Harmonic design specifically targeted at fan, pump, compressor and other common applications in industries such as cement, minerals and mining, metals, pulp & paper, water, power generation and chemical, oil and gas.
The ACS 2000 ULH drive is available in both transformerless (direct-to-line) and external transformer configurations. The design is packed with innovative technology such as our high voltage IGBT based active front end (AFE) and patented multi-level switching topology which provides both line and load friendly operation. The ACS 2000 ULH design provides near sinusoidal current and voltage waveforms making the drive compatible for use with standard motors and cables.
Flexible line supply connections
With the direct-to-line configuration, there is no need for a multi-pulse transformer to meet IEEE 519 standards. The user benefits include:
- a more compact size requiring less space in the electrical room
- a lighter weight design reducing transportation cost and simplifying installation
- “three in – three out” cabling concept reducing installation time and cost
For applications where connection to a higher system voltage is required, the ACS 2000 ULH is available in an external transformer configuration, which requires connection to a conventional distribution type two-winding oil or dry-type input isolation transformers.
Lower harmonics
With the integration of an Active Front End (AFE), line side harmonics are minimized without the use of expensive, specialized transformers. The AFE provides a low harmonic footprint which meets the requirements for current and voltage harmonic distortion per IEEE 519 and IEC 61000-2-4 standards.
Reduced energy consumption
For minimal energy consumption, the AFE enables regenerative operation which feeds back braking energy into the line supply, reducing overall energy consumption. In addition, the AFE makes it possible to maintain near unity power factor across the entire speed range providing additional energy savings.
Easy installation, commissioning, operation and maintenance
The direct-to-line technology results in quick and easy installation and commissioning as there is no transformer involved. Installing a medium voltage AC drive has never been easier through ABB’s “three in – three out” cabling concept. Simply disconnect the existing cables and make direct connections to the drives input terminals and connect the drive output to the motor.
The design of the ACS 2000, with its withdrawable phase modules, allows easy front access to all drive components and provides quick replacement. This feature offers industry leading Mean Time To Repair (MTTR).
High reliability
The drive is designed for extremely high reliability, which is achieved through the use of proven technologies such as
- the multi-level Voltage Source Inverter (VSI) topology
- established high-voltage IGBT power semiconductors
- Direct Torque Control (DTC) motor control platform.
These technologies increase reliability, extend Mean Time Between Failure (MTBF) and maximize availability.
The heritage of ABB’s VSI topology, along with a patented IGBT-based multi-level design, provides near sinusoidal current and voltage waveforms making the drive compatible for use with standard motors and cables.
The ACS 2000’s drive control platform uses ABB’s award-winning DTC, resulting in the highest torque and speed performance as well as the lowest losses ever achieved in medium voltage AC drives. Control of the drive is immediate and smooth under all conditions.
Lower total cost of ownership
Flexible line supply connections, lower harmonics, reduced energy consumption, ease of installation and commissioning and high reliability, combine to give the ACS 2000 ULH an extremely low total cost of ownership over the life cycle of the drive.