Line Reactor Tutorial

Product catalog summary

Purpose and Benefits of Line Reactors
Line reactors are essential for enhancing drive reliability by minimizing failures due to transient over-voltages and reducing nuisance over-voltage trips caused by various factors such as utility power factor correction and switching large AC motor loads. They also help in minimizing line-side fuse operations during voltage sags and improve the effective power factor by reducing harmonics.

Economic Considerations
The document provides a cost breakdown for a 10 HP AC inverter system, highlighting the total cost of $4882, including components like the inverter, motor, circuit breaker, and installation. It also outlines the costs associated with catastrophic failures and nuisance trips, emphasizing the economic benefits of using line reactors.

Reactor Specifications
Line reactors are available in different percentages to eliminate nuisance trips, with a 3% reactor eliminating 95% and a 5% reactor eliminating over 99% of such trips. The document also details the reduction in harmonic distortion achieved by using reactors of varying percentages.

Technical Ratings and Standards
Key ratings for line reactors include maximum voltage, thermal current, fundamental current, and percent impedance. Additional specifications cover maximum ambient temperature, altitude, temperature rise, switching frequency, dv/dt rating, and dielectric strength. MTE line reactors are noted for their harmonic compensation and compliance with CE, UL, cUL, and CSA standards.

Product Features and Specifications
MTE line reactors are designed to offer the lowest cost and highest durability, with global delivery options. Specific input reactor specifications require a minimum of 4.5% effective impedance, UL approvals, and copper winding with a UL class H insulation system. Power factor correction capacitor de-tuning reactors must handle specific harmonic currents and are also UL approved.

Catalog excerpts

4 Purpose 4 Harmonics Reduction 4 Ratings Considerations > MTE CORPORATION Line Reactors 1 size="-1">

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l Maximum voltage rating > l Thermal current rating I > RMS ו Must be > VFD Input Current Rating l Fundamental current rating I > FUND l Percent impedance = > MTE CORPORATION Line Reactors 9 size="-4">

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l Maximum ambient temperature > l Maximum altitude without derating > l Temperature rise > l Maximum switching frequency > l dv/dt rating > l Dielectric strength > l Agency approvals > MTE CORPORATION Line Reactors 10 size="-2">

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16,000 volt/usec dv/dt rating l > MTE CORPORATION Line Reactors 11 size="-1">

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The lowest installed cost > The full measure of impedance > The most durable product > Delivery from stock > A global delivery system > MTE CORPORATION Line Reactors 12 size="-1">

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