Three phase AC line reactor power enhances power quality and protects sensitive equipment

EMIS has announced the availability of the PQR-4 Series of Three Phase AC Line Reactor Power Quality Products. The series is designed to be used in Power Distribution (Line side of Drive) to provide input impedance which helps lower harmonic distortion and increase VFD component lifetime.

Power Quality refers to the characteristics of the electrical power supplied to and consumed by devices. High-quality power ensures that equipment functions reliably, efficiently, and safely. Poor power quality can lead to malfunctions, reduced equipment lifespan, and increased operational costs.

Key aspects of Power Quality include voltage stability, harmonics, power factor, voltage sags and swells, interruptions, transients and surges. Poor power quality can result from non-linear loads, industrial equipment with high start-up currents, Grid disturbances, faulty wiring, or poor grounding.

The EMIS PQR-4 Series of Three-phase AC line reactors are vital inductive components installed in series with power lines in industrial and commercial electrical systems. They are mainly developed to improve power quality and protect sensitive equipment.

Key features include:

• Reduced harmonic distortion caused by non-linear loads, such as VFDs, contributing to cleaner and stable power.
• They limit voltage transients caused by utility switching or lightning strikes, safeguarding downstream components like inverters, motors, and drives from potential overvoltage damage.
• By introducing impedance into a circuit, they limit inrush current during short circuit events, preventing nuisance tripping of circuit breakers and extending the life of power components.
• Also, they improve the quality of current waveforms by reducing peak currents. This leads to more efficient energy use and reduces thermal stress on components,, thereby increasing lifespan and improving the reliability of drive systems.

The series can be used in applications such as VFDs, industrial plants and factories, process automation equipment, AC Power Systems, elevator and escalator Drives, CNC Machines and Robotics, welding machines, cable winding machines, and to improve the reliability of UPS systems and power distribution units.

Key specifications of the EMIS PQR-4 Series include:

• Operating Voltage - 480VAC
• Temperature range - -45C to +100C
• Current Rating - 1.76A to 1010A
• Insulation Class N
• Protection category - IP 00
• Floor Mounting