Merus™ 4DRIVES is an optimized active harmonic filter that is very easy to operate and commission. It is our simple solution to complex power quality problems.
Merus™ 4DRIVES active harmonic filter provides an optimized solution for variable frequency drive (VFD) applications. One active harmonic filter can be used for multiple six-pulse drives in a system. The filter selection and dimensioning can be made based on the needed harmonic current distortion. The filter current rating is substantially lower than the combined drive load current, which allows savings in comparison to active front-end (AFE) drives.
Typical segments of Merus™ 4DRIVES include water and wastewater treatment plants, buildings and heating, ventilation, and air conditioning (HVAC) applications, data centers, and industry applications.
Mitigates harmonic current in the measurement point – mitigating current/voltage distortion
Mitigates reactive power – power factor improvement, voltage sag mitigation
Balances fundamental cycle current – evens phase imbalance
Merus™ 4DRIVES active harmonic filter has an easy-to-use 7” touch screen (HMI) for simple commissioning and operation. All essential functions are seen on the home screen. Up to seven active harmonic filter modules can be controlled with one HMI. There are easy-to-use commissioning wizards and both network and load sides can be monitored.
Merus™ 4DRIVES active harmonic filter is designed for easy maintenance. The essential components are easily accessed by service even without removing the module from the enclosure. Remote access to the modules is available with Merus™ remote control concept.
Merus™ 4DRIVES active harmonic filter is a perfect choice for VFD manufacturers and system integrators. The active harmonic filter design is modular and made for easy installation into drive cabinets with three wire connection parallel with the VFD load busbar. No external power supplies or controllers are needed. The solution is scalable; the current rating is extended by installing several modules side by side. The active harmonic filter is available for all necessary VFD voltage ratings. The modules have CE, CSA, and UL approvals.
Selecting Merus™ 4DRIVES active harmonic filter solution for drives harmonic mitigation provides improved redundancy in comparison to AFE drives and Low Harmonic Drives (LHD). Drives failure leads to immediate process interruption, whereas an unlikely case of active harmonic filter tripping does not stop the process, only harmonics content is temporarily increased.
Merus™ 4DRIVES Active Harmonic Filters operate similarly to noise-canceling headphones. They measure the distorted current of VFDs and inject harmonic frequencies, but with an opposite phase angle. Canceling out harmonic currents reduces voltage harmonics and eliminates distortion at the point of common coupling. Alternative connection to cloud-based platform Merus™ WISENERGY allows easy remote control and monitoring access.
September 9, 2022