ABB ACS 1000i reliable power control

ABB ACS 1000i reliable power control

DESCRIPTION

The ACS 1000 family of drives, one of the most successful  variable speed drives in its class, provides simple and reliable  power control.

Power control of induction motors

Drawing from over a century of industrial manufacturing  experience, ABB provides a simple and reliable approach to  power control: the ACS 1000 family of drives for speed  and torque control of 315 to 5000 kW induction motors for  voltages of 2.3, 3.3, 4.0 and 4.16 kV. It is available with  air or water cooling.The air cooled drive can be supplied with separate input transformer (ACS 1000) or as a fully integrated drive (ACS 1000i)  which includes input transformer and, optionally, input contactor.

Operational experience

With over one thousand installations worldwide, the ACS 1000  family is one of the most successful variable speed drives in  its class.  Since its introduction in 1997, it has set the benchmark for  reliable and efficient control of medium voltage applications  such as pumps, fans, conveyors, extruders and compressors.

Key product features

– Retrofit-ready for existing motors and suitable for most  medium voltage applications 

– Output sine filter for pure sinusoidal voltage and current  output: standard motors, no motor derating, no voltage  stress and no common mode voltages on the motor  insulation 

– Fuseless design for reliable, non-aging, maintenance-free  circuit protection 

– DTC control platform for exceptionally high torque and  speed control performance 

– Integrated or separate input transformer for highest system  design flexibility

Network friendly

Depending on the network conditions, the drives of the ACS 1000  family can be equipped with a 12- or 24-pulse diode rectifier  which meets the stringent requirements for current and voltage  harmonic distortion as defined by IEEE, IEC and EN. This  eliminates the need for costly harmonic analysis or installation  of network filters when applying a new drive.

Output sine filter – perfect for standard motors and  retrofit applications

Voltage reflections and common mode voltages, caused by  any inverter topology, are a real concern for medium voltage  motors. They cause excessive stress to a standard motor  insulation and create harmful bearing currents, both with  potentially disastrous consequences. Furthermore, the motor  is subjected to additional harmonic heating generated by the  inverter switching if no further precautions are taken.With an ACS 1000 or ACS 1000i, all these detrimental effects  are totally eliminated by its unique output sine filter, being an  integral part of the drive. The result is an excellent waveform  of voltage and current, supplied to the motor.

Benefits 

– Compatibility with standard induction motors without derating

– Ability to retrofit to existing motors 

– Motor efficiency same as Direct-On-Line (DOL) operation 

– Reduced motor noise 

– Use of standard cables 

– No limitation of motor cable length

System design flexibility

The ACS 1000 family can be configured with either an  integrated dry-type or separately installed input transformer.  This flexibility enables the use of oil-filled transformers when  the transformer will be mounted outdoors. The advantage is  that heat losses from the input transformer are not dissipated  in the electrical room. The integrated input transformer,  on the other hand, simplifies installation and commissioning  (three cables in - three cables out).

Features

Flexible input transformer configuration

Network and motor friendliness

Reliable and efficient components

Direct Torque Control (DTC)

DriveMonitorTM (optional)

Service and support