XL SYSTEMS BALANCE PHASE VOLTAGES & PHASE AMPERAGES
XL-Series modules employ Magnetic Phase Coupling circuitry which is a power conditioning mechanism where (i) conductor amperage and voltage transients are balanced between phases and (ii) generated power and conditioned power gains are injected back into the facility electrical system as safe “Usable Power” to be used by downstream loads.
Balancing Inter-Phase Voltage and Amperage
In XL-480V 3-Phase Systems, phase lines (A, B, C) are symmetrically connected by 3 pairs of magnetic chokes. These magnetic chokes improve inner phase balance by producing amperage (Amps) through transformer action which leads the applied voltage by 90° degree, thus further reducing the source amperage (Amps). These magnetic chokes thereby increase power factor, while magnetic phase balancing attenuates the amperage and voltage transients.
These combined effects through various mechanisms, increase the efficiency of the inductive circuit and connected loads, thereby relieving electrical stresses, increasing the efficiency and reducing the harmonics of three phase motors, machinery and transformers, allowing motors and equipment to run cooler and last longer. Balanced voltage will also lessen the likelihood of equipment tripping off due to utility voltage sags. Fluctuations in voltage are dampened by the coupling of the 3-phase power supply, which will lessen any likelihood of equipment tripping problems.
Absorbing Amperage and Voltage Transients
The balancing of phase amperages and voltages through wrap-around magnetic chokes also share transients between phases and thus by addition and subtraction, attenuate both the amperage and voltage transient spikes.
Magnetic chokes in XL modules also function as a self-healing surge suppressor which can operate indefinitely, unlike the sacrificial MOV device that needs replacement at times. MOV’s are meant to sacrifice themselves in order to protect the electrical system and connected loads from harmful electrical irregularities. Replacement of MOV’s are not covered under warranty, however they cost less $10 to replace.
XL Systems continually attenuate voltage and amperage transients, protecting connected loads and increasing their useful lifetime. To protect against large surges, which are not sufficiently attenuated by the multi-coiled chokes, MOV’s within each XL module provide transient suppression between each phase line and between each phase line and neutral.
In many customer installations, the existence of these magnetic connections between the phases has attracted and dissipated large voltage and amperage spikes, which discharged through the XL System, leaving the rest of the facility equipment undamaged. The dissipated MOV components were replaced inexpensively.
Installing XL modules on Main Distribution Panels (MDP) and distributed subpanels closer to large inductive loads, isolates those panels and loads from internal and external spikes and surges and thru amperage reduction, maximizes I2R savings. Thereby relieving electrical stresses, increasing the efficiency and reducing the harmonics of three phase motors, machinery and transformers, allowing motors and equipment to run cooler and last longer. Balanced voltage also lessens the likelihood of equipment tripping off due to utility voltage sags.
Compensation for Transients and Sags
The mechanism for protecting against short duration amperage and voltage transients and sags is the magnetic phase balancing in combination with the storage of energy within the RCL circuit of the XL devise.
By distributing energy between the phases during voltage sags, the energy stored in the capacitor within XL devises will keep amperage and voltage steady for several cycles with the duration depending upon the load and magnitude of the disturbance.
Most sags and surges are of short duration and this compensation has proven to be invaluable feature to customers. During the short duration amperage and voltage sags and surges, XL System protects the circuit like a UPS.